CN106253348A - A kind of electric power networks and control method, device and system - Google Patents
A kind of electric power networks and control method, device and system Download PDFInfo
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- CN106253348A CN106253348A CN201610817933.9A CN201610817933A CN106253348A CN 106253348 A CN106253348 A CN 106253348A CN 201610817933 A CN201610817933 A CN 201610817933A CN 106253348 A CN106253348 A CN 106253348A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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Abstract
Embodiment of the invention discloses that a kind of electric power networks and control method, device and system, relate to power domain, in order to improve the low problem of the power plant utilization rate caused in prior art or the grid type microgrid problem big to the demand of electrical network in order to meet the equilibrium of supply and demand of grid type microgrid.The method includes: N number of microgrid, and each described microgrid includes: the first bus connected by potential device and the second bus, and the first bus is used for connecting power plant and load；The second bus in each microgrid is connected with the second bus of at least one other microgrid in N number of microgrid by interconnection, and interconnection is provided with interconnection switch, and interconnection switch connects for the microgrid controlling to be connected or disconnects；N number of microgrid is divided into M microgrid group, and each microgrid often organized is connected by interconnection, and each microgrid group is connected with electrical network supply line by points of common connection PCC, and in N number of microgrid, the first bus of at least one microgrid is connected with charging pile.
Description
Technical field
The present invention relates to power domain, particularly relate to a kind of electric power networks and control method, device and system.
Background technology
Distributed energy with it efficiently, cleaning, the feature such as flexibly, can complement one another with traditional energy mode.Microgrid
(micro-grid, microgrid), is again micro power network, micro-capacitance sensor, is the important Land use systems of one of distributed energy, is
A kind of system mainly collectively constituted by load and power plant (mainly comprising Distributed-generation equipment).Microgrid both can be with outward
Portion's electrical network is incorporated into the power networks, it is also possible to isolated operation.
With reference to shown in Fig. 1, the microgrid being incorporated into the power networks with electrical network is i.e. grid type microgrid, and its feature is that inside has power plant
And load, by points of common connection with electrical network (also it is common connecting point, PCC:point of common can be called for short
Coupling) connection.
Grid type microgrid is substantially carried out the production and consumption balance of electric energy in the inside of below PCC, is usually operated at spontaneous
Personal state, not enough some electrical power is supplemented by electrical network, not to electrical network anti-power transmission power.Owing to microgrid anti-power transmission power may
With problems such as intermittent and freedom, the voltage pulsations of meeting influence area electrical network, so usual electrical network limits, microgrid is counter to be sent
The situation of electric current occurs.So grid type microgrid in order to meet the equilibrium of supply and demand it is possible to following two situation can be there is: a kind of feelings
Condition is to not to electrical network anti-power transmission power, limit the operation of the internal power plant of microgrid to a certain extent, such as exist
The time period that illumination condition is good and load is low, part photovoltaic generation can be caused to abandon, and the work of the equipment such as similar gas electricity generator
Make shutting down or the generation of the non-inferior situation of specified output state, cause operational efficiency low, may utilize year such as hourage reduction etc. and make
The problem that power plant utilization rate is low.Another kind of situation is to need electrical network to provide a large amount of electric power to grid type microgrid, especially when
Overload, i.e. the internal production capacity of microgrid, much smaller than load, may result in grid type microgrid big to the demand of electrical network.
Summary of the invention
Embodiments of the invention provide a kind of electric power networks and control method, device and system, for improving prior art
In the low problem of the power plant utilization rate that causes to meet the equilibrium of supply and demand of grid type microgrid or grid type microgrid to electricity
The big problem of demand of net, and provide a kind of new electric power networks, and the control of microgrid power in this electric power networks is provided
Scheme.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
First aspect, embodiments providing a kind of electric power networks, described electric power networks includes: N number of microgrid, described
N≥2；
Each described microgrid includes: the first bus connected by potential device and the second bus, and wherein, described first is female
Line is used for connecting power plant and load；The second bus in each described microgrid by interconnection and described N number of microgrid extremely
Second bus of few other microgrids is connected, and described interconnection is provided with interconnection switch, and described interconnection switch is used
Connect in the microgrid controlling to be connected or disconnect；
Described N number of microgrid is divided into M microgrid group, and each microgrid often organized is connected by described interconnection, and each microgrid group is led to
Cross points of common connection PCC to connect with electrical network supply line, the first bus of at least one microgrid and charging pile in described N number of microgrid
Connect, 1≤M≤N.
Optionally, each described microgrid also includes: the potential device high-pressure side between the first bus and the second bus
Switch.
Above-mentioned first aspect is a kind of electric power networks that the embodiment of the present invention provides.Electric power networks is to be combined by multiple microgrids
Run, then the electric power networks grid-connected with electrical network.Being connected by interconnection between microgrid, interconnection is provided with interconnection switch, connection
Winding thread on-off control connection and the disconnection of connected microgrid, can carry out energy exchange between the microgrid of connection.The present invention is real
As long as executing in the electric power networks that example is provided and being formed microgrid group by the connection of two or more microgrids, then the most permissible between microgrid
Carry out energy exchange (its electricity more than needed is supplied the microgrid that other electricity are short by the microgrid having).So embodiment of the present invention provides
Electric power networks in microgrid between can be carried out energy exchange, and be to carry out energy between microgrid of the prior art
Amount exchange.Therefore, compared to existing technologies, the electric power networks that the embodiment of the present invention provides can improve in prior art
Problem that the power plant utilization rate that meets the equilibrium of supply and demand of grid type microgrid and cause is low or grid type microgrid are to electrical network
The problem that demand is big.
Second aspect, embodiments providing the control method of a kind of electric power networks, described electric power networks is first
Electric power networks described in aspect；
Described control method includes: for each described microgrid group, network scheduling device obtains in described microgrid group each
The maximum forward power parameter that also site allows of microgrid；
The maximum forward power parameter that also site allows of described each microgrid is sent the microgrid control to described microgrid
Device, in order to described micro-net control device controls the operation shape of charging pile in described microgrid according to described maximum forward power parameter
State.
Optionally, the maximum forward power parameter bag that also site allows of each microgrid in described acquisition described microgrid group
Include:
According to the default time cycle, obtain the maximum forward power that also site allows of each microgrid in described microgrid group
Parameter.
In optional described acquisition described microgrid group, the maximum forward power parameter that also site allows of each microgrid includes:
Receive the real time execution parameter of the described microgrid of the micro-net control device transmission of each microgrid in described microgrid group, described
Real time execution parameter includes:
Described microgrid and the realtime power parameter of site, and the power ascension ability of described microgrid and power reduces energy
Power, described realtime power parameter is used for obtaining realtime power value；
By described microgrid and real-time with in the historical time cycle of realtime power value in the current time period of site
Performance number weighted sum, obtains power prediction value；
Described power prediction value is entered by power ascension ability or the power reduction capabilities of described microgrid according to described microgrid
Row is revised, to obtain power correction value；
Determine the right margin maximum forward power parameter as described microgrid in the interval comprising described power correction value.
The third aspect, embodiments provide a kind of network scheduling device, be used for controlling electric power networks, described electric power
Network is the electric power networks described in first aspect, and for each described microgrid group, this device includes:
Acquiring unit, in the network scheduling device described microgrid group of acquisition, the maximum that also site allows of each microgrid is just
To power parameter；
Transmitting element, for sending the maximum forward power parameter that also site allows of described each microgrid to described the most micro-
The micro-net control device of net, in order to described micro-net control device controls to fill in described microgrid according to described maximum forward power parameter
The running status of electricity stake.
Fourth aspect, embodiments providing the control method of a kind of electric power networks, described electric power networks is first
Electric power networks described in aspect；Described control method includes:
Micro-net control device receives the grid-connected of the microgrid that controlled of described micro-net control device that network scheduling device sends
The maximum forward power parameter that point allows；
If the realtime power P of the also site of described microgrid is more than described maximum forward power parameter, then control described microgrid
In the first charging pile be in stopping charged state, described first charging pile is current to charging object charging, and this charging object
Level of charge more than the charging pile of the first preset value；And/or,
If the realtime power P of the also site of described microgrid is less than described maximum forward power parameter, then control described microgrid
In each charging pile be in chargeable state.
Optionally, if the realtime power P of the also site of described microgrid is more than described maximum forward power parameter, then institute is controlled
State the first charging pile in microgrid be in stopping charged state including:
If the realtime power P of the also site of described microgrid is more than described maximum forward power parameter, then judge described microgrid
In the output of each controlled power plant whether be all higher than the second preset value；
If the output of each controlled power plant is all higher than the second preset value in described microgrid, then control described microgrid
In the first charging pile be in stopping charged state.
Optionally, if the output of each controlled power plant is all higher than the second preset value in described microgrid, then control
In described microgrid the first charging pile be in stopping charged state including:
If the output of each controlled power plant is all higher than the second preset value in described microgrid, then judge described microgrid
In the charge power of each charging pile group whether more than the 3rd preset value；
If the charge power of a charging pile group place circuit is more than the 3rd preset value in described microgrid, then control described microgrid
Described in charge the first charging pile of pile group be in stopping charged state.
5th aspect, embodiments provide a kind of micro-net control device, be used for controlling electric power networks, described electric power
Network is the electric power networks described in first aspect, and this device includes:
Receiving unit, the described micro-net control device receiving the transmission of network scheduling device for micro-net control device is controlled
Microgrid and site allow maximum forward power parameter；
Control unit, if the realtime power P for the also site of described microgrid is more than described maximum forward power parameter, then
Controlling the first charging pile in described microgrid and be in stopping charged state, described first charging pile is current to charging object charging,
And the level of charge of this charging object is more than the charging pile of the first preset value；And/or, if the real-time merit of the also site of described microgrid
Rate P is less than described maximum forward power parameter, then each charging pile controlled in described microgrid is in chargeable state.
6th aspect, embodiments providing the control system of a kind of electric power networks, described electric power networks is first
Electric power networks described in aspect, this control system includes: described in network scheduling device described in the third aspect and the 5th aspect
Micro-net control device.
Above-mentioned second aspect to the 6th aspect is the control method of a kind of electric power networks of embodiment of the present invention offer, device
And system.For each microgrid group, network scheduling device obtains the maximum forward that also site allows of each microgrid in microgrid group
Power parameter；And the maximum forward power parameter that also site allows of each microgrid is sent the micro-net control device to microgrid.
The maximum that also site allows of the microgrid that the micro-net control device that micro-net control device reception network scheduling device sends is controlled
Forward power parameter；If the realtime power P of the also site of microgrid is more than maximum forward power parameter, represent that this microgrid is in heavy duty
In the case of, then controlling the first charging pile in microgrid and be in stopping charged state, the first charging pile is current to charging object charging,
And the level of charge of this charging object is more than the charging pile of the first preset value；And/or, if the realtime power P of the also site of microgrid
Less than described maximum forward power parameter, represent that this microgrid is not under case of heavy load, then control at each charging pile in microgrid
In chargeable state.Understanding, in embodiments of the present invention, each micro-net control device that network scheduling device controls with it matches mutually
Close, better controled over the charged state of charging pile.On the premise of not affecting current network security stable operation, carry further
Power plant utilization rate in high microgrid, will not make again whole electric power networks excessive to the demand of electrical network simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be in embodiment or description of the prior art
The required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only some realities of the present invention
Execute example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these accompanying drawings
Obtain other accompanying drawing.
The one single grid type microgrid structural representation that Fig. 1 provides for prior art；
One of electric power networks electric topology figure that Fig. 2 provides for the embodiment of the present invention；
The two of the electric power networks electric topology figure that Fig. 3 provides for the embodiment of the present invention；
One of control system figure of the electric power networks that Fig. 4 provides for the embodiment of the present invention；
The three of the electric power networks electric topology figure that Fig. 5 provides for the embodiment of the present invention；
One of flow chart of control method of electric power networks that Fig. 6 provides for the embodiment of the present invention；
The two of the flow chart of the control method of the electric power networks that Fig. 7 provides for the embodiment of the present invention；
The two of the control system figure of the electric power networks that Fig. 8 provides for the embodiment of the present invention；
The one number axis that Fig. 9 embodiment of the present invention provides divides power interval schematic diagram；
One of block diagram controlling device of the electric power networks that Figure 10 provides for the embodiment of the present invention；
The two of the block diagram controlling device of the electric power networks that Figure 11 provides for the embodiment of the present invention；
The control system block diagram of a kind of electric power networks that Figure 12 provides for the embodiment of the present invention；
The three of the flow chart of the control method of the electric power networks that Figure 13 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
For the ease of clearly describing the technical scheme of the embodiment of the present invention, in an embodiment of the present invention, have employed " the
One ", the printed words such as " second " to function with act on essentially identical identical entry or similar item makes a distinction, those skilled in the art can
To understand that quantity and execution order are not defined by the printed words such as " first ", " second ".
It addition, term " system " and " network " are the most often used interchangeably in the embodiment of the present invention.
Term "and/or" in the embodiment of the present invention, a kind of incidence relation describing affiliated partner, can there are three kinds of passes in expression
System, such as, A and/or B, can represent: individualism A, there is A and B, individualism B these three situation simultaneously.It addition, this
Character "/" in bright embodiment, typicallys represent the forward-backward correlation relation to liking a kind of "or".In describing the invention, unless
Being otherwise noted, " multiple " are meant that two or more.
Embodiment one
In prior art, single grid type microgrid is independent operating, but owing to not allowed from one-level by PCC point power
Microgrid flows to the restriction of electrical network, thus causes the generated energy of the generating equipment of microgrid limited, or needs to roll up energy storage device.
This way can deviate the actual demand of microgrid, or the cost of investment of microgrid and operation cost are all raised.Therefore at this
Bright embodiment provides a kind of novel electric power network to solve the problems referred to above.With reference to Fig. 2, in the electric power networks that this is new,
Multiple microgrids are carried out interconnection connection by the embodiment of the present invention, form united grid type microgrid, when multiple microgrids are combined
During operation, owing between microgrid, the rule of product energy is different, network complementary effect will be formed.It is to be appreciated that in following example
For the ease of describing, in the description of the embodiments below, one-level microgrid i.e. refers to that single microgrid, two grades of microgrids i.e. refer to by many
Individual one-level microgrid connects the grid type microgrid formed.
First introducing the electric power networks that the embodiment of the present invention provides, this electric power networks is made up of N number of microgrid, wherein N
≥2.In the present embodiment as a example by N=3, with reference to Fig. 2, this electric power networks is by No. 1 microgrid, No. 2 microgrids, No. 3 microgrids these 3
Two grades of microgrids that level microgrid constitutes jointly.
Concrete, each microgrid includes as a example by No. 1 microgrid: the first bus (bus) 12 connected by potential device 11
With the second bus 13.First bus 12 connects the low-pressure side of potential device 11, example for 0.4kV low-voltage bus bar, and second is female
Line 13 connects the high-pressure side of potential device 11, example for 10kV high voltage bus.Wherein, the first bus 12 is used for connecting production capacity and sets
Standby and load.Power plant in microgrid mainly includes Distributed-generation equipment and energy storage device, Distributed-generation equipment according to
The difference of use technology, can be divided into thermoelectric cold cogeneration generating, internal combustion unit generation, gas turbine power generation, miniature hydro-power generation, wind
Power generating, solar energy power generating, fuel cell etc.；Energy storage device mainly includes energy-storage battery；Load is primarily referred to as using electric wire
Road.Wherein, generating equipment and energy storage device can be such as different equipment, and both are connected so that sending electric energy can store
In energy storage device；Both are also used as a single unit system and exist, and now energy storage device can be as in generating equipment
Parts.Describe for convenience and understand, photovoltaic power generation equipment, cogeneration, storage in the accompanying drawing of the embodiment of the present invention
Power plant can be represented by equipment；Load is represented by electric line.
The second bus 13 in each microgrid is female with in N number of microgrid the second of at least one other microgrid by interconnection 14
Line 13 is connected；It is to say, there is not, in same two grades of microgrids, the one-level not being connected by interconnection with any microgrid
Microgrid.Example, with reference to shown in Fig. 2, for No. 1 microgrid, No. 1 microgrid and No. 2 microgrids are connected by interconnection 14；Right
For No. 3 microgrids, No. 3 microgrids and No. 2 microgrids are connected by interconnection 14；For No. 2 microgrids, No. 2 microgrids are respectively
It is connected by interconnection 14 with No. 1 microgrid, No. 3 microgrids.Example, interconnection 14 is 10kV high tension cable.On interconnection 14
Being provided with interconnection switch, this interconnection switch connects for the microgrid controlling to be connected or disconnects.
It is to be appreciated that the difference of " connection " and " connection " herein: " connection " refers to be connected but not necessarily communicates, and i.e. differs
Surely electric current is had to flow through；" connect " and refer to be connected and communicate, have electric current to flow through.Such as: two microgrids linked together, two are referred to
Individual microgrid interconnection connects together, but the switch on interconnection is likely to be at "on" position and is likely to be in gate-dividing state；Even
Two logical microgrids, refer to that two microgrid interconnections connect together, and the switch on interconnection are in "on" position.
Optionally, interconnection 14 can be public, is shared by the microgrid of more than 3.With reference to shown in Fig. 3, all microgrids
Linked together by a public interconnection.Interconnection 14 connects the part of each microgrid the second bus has interconnection to open
Close, for controlling connection or the disconnection of this microgrid and other microgrids.
Preferably, interconnection 14 is independent, only by used by two microgrids.With reference to shown in Fig. 2, two microgrids being often connected
Being connected by independent interconnection, independent interconnection refers to that this interconnection is only used for connecting two microgrids, and not with its
He connects by microgrid.Optionally, at least one end of interconnection 14 is provided with interconnection switch, it should be noted that interconnection here
One end do not refer to the end points of interconnection, but on interconnection in the part of microgrid the second bus 13, now this contact
Wiretap belongs to the microgrid at its second close bus 13 place, its separating brake and combined floodgate can be come by the micro-net control device of this microgrid
Control；Which end is provided with interconnection switch and does not represent its physical location, but it is micro-to show which this interconnection switch belongs to
Net.Such as on interconnection 14 switch of the interconnection in the part of No. 2 microgrid the second buses 13 17, this interconnection switch 17 genus
In No. 2 microgrids, separating brake and the combined floodgate of interconnection switch 17 can be controlled by the micro-net control device of No. 2 microgrids.The most independent connection
Winding thread, and at least one end be provided with interconnection switch can control the connection between two microgrids or disconnection the most flexibly, and
Do not affect the connection between the two microgrid and other microgrids or disconnection.
Preferably, the two ends of interconnection are respectively arranged with interconnection switch.Such as interconnection switch 17 on interconnection 14
Switching 18 with interconnection, now separating brake and the combined floodgate of interconnection switch 17 can be controlled by the micro-net control device of No. 2 microgrids, connection
Separating brake and the combined floodgate of winding thread switch 18 can be controlled by the micro-net control device of No. 1 microgrid.So can make two be connected micro-
In net, any one microgrid can control the disconnection of the two microgrid by the separating brake or combined floodgate controlling interconnection switch, such that it is able to
Make control more flexible.
N number of microgrid in this electric power networks is divided into M microgrid group, 1≤M≤N, and each microgrid often organized is by interconnection even
Logical, the exchange of energy can be carried out between the different microgrids in microgrid group.Here packet is not unalterable, along with micro-
The change of whether connected state between net, the division of microgrid group changes the most therewith.The present embodiment will be interconnected in two grades of microgrids
The combination of multiple (at least two) one-level microgrid is referred to as a microgrid group, it is also possible to by two grades of microgrids not with any other microgrid
One one-level microgrid of connection is referred to as a microgrid group.
So that each microgrid group is grid type, each microgrid group is powered with electrical network by points of common connection PCC
Circuit connects.Preferably, current embodiment require that in each microgrid group that at least a microgrid is by connecing at points of common connection PCC
Enter switch 15 and be connected to electrical network supply line.And group often only has one access switch and connect with described electrical network supply line, with
It is easy to the control to a microgrid group.
Two grades of microgrids that the embodiment of the present invention is provided can have one or more microgrid group, in same microgrid group
Owing to relying on interconnection connection between different microgrids, the most just can be carried out the exchange of energy by this interconnection, i.e. some one
The electricity more than needed of level microgrid counter can deliver to two grades of microgrids, supplies other one-level microgrids and uses.In microgrid group at least one micro-
Netcom crosses access switch and is connected to electrical network supply line, can have the electrical network supply line more than in i.e. one microgrid group,
But different electrical network supply lines is not necessarily identical due to frequency plot, it is impossible to power to same microgrid group simultaneously, because of
This each microgrid group has and an only electrical network supply line connection, powers for microgrid, other electrical network supply lines of this microgrid group
Road disconnects, and is in standby state.
Such as two shown in Fig. 2 grade microgrid, switchs the interconnection of No. 1, No. 2, No. 3 microgrid and all closes a floodgate, then composition one
Microgrid group.This microgrid group is connected with Liang Tiao electrical network supply line, and i.e. one is that No. 1 microgrid supplies with electrical network by accessing switch 15
Electric line is connected, and another is that No. 3 microgrids are connected with electrical network supply line by accessing switch 15.Wherein No. 1 microgrid phase
The mains supply line that electrical network supply line is this microgrid group even, and the electrical network supply line that No. 3 microgrids are connected is that this is micro-
The stand-by power supply circuit of net group.If a microgrid group has a plurality of electrical network supply line, the most preferably can be whole by calculating
The individual microgrid group electrical demand to electrical network, select one meet condition as mains supply line, it is whole for needing the condition met
Individual microgrid group not can exceed that the load threshold value in this supply line to the electrical demand of electrical network.If there being a plurality of electrical network supply lines
Road meets condition, and any bar in the most optional electrical network supply line meeting condition is as mains supply line.One microgrid group is such as
Fruit has a plurality of electrical network supply line, it is possible to when wherein an electrical network supply line breaks down, maybe can not meet above-mentioned condition
Time, or the long-term relation between supply and demand of each microgrid be varied such that need change network topology time, then stand-by power supply circuit just can become
Primary supply line, makes control more flexible.And access switch at each microgrid group only one PCC and connect with electrical network, reduce
The management difficulty of electrical network；In the present embodiment, this microgrid group of example connects with mains supply line, i.e. the access switch 15 of No. 1 microgrid
Closing a floodgate, the access of No. 3 microgrids switchs 15 separating brakes.
Based between above-mentioned each microgrid and the annexation assumed of microgrid and electrical network, according to the arrow side of each microgrid
To understanding, No. 2 microgrids have electricity more than needed, No. 1 microgrid and No. 3 microgrid electricity shortage, then No. 2 microgrids are delivered to counter for electricity more than needed
Two grades of microgrids, supply No. 1 microgrid and No. 3 microgrids use, if No. 1 microgrid and No. 3 microgrid electricity are the most not enough, then (the most main by electrical network
Supply line) provide.So can improve distributed power generation without reducing the generated energy of the Distributed-generation equipment of No. 2 microgrids
Utilization rate of equipment and installations；3 one-level microgrid cooperations reduce the overall demand to electrical network simultaneously.
Preferably, each microgrid in the electric power networks that the embodiment of the present invention provides also includes: be positioned at the first bus and the
Potential device high side switch between two buses.Potential device can be transformator in embodiments of the present invention, potential device
When high side switch can be to only have a potential device between the first bus and the second bus, as shown in Figure 2 micro-at No. 1
Potential device high side switch 16 between the first bus 12 and the second bus 13 in net；Potential device high side switch is also
When can be to have multiple potential device between the first bus and the second bus, control many between the first bus and the second bus
The main switch of individual potential device.The effect of potential device high side switch is when a generation in multiple microgrids of microgrid group is tight
Weight fault, as line short or generating equipment is out of control etc. catastrophe failure can involve other microgrids time, can be micro-by only disconnecting this
The potential device high side switch of net isolates this microgrid, it is not necessary to change the state of other switches, so that other microgrids are not
Impacted.The most this method switchs all separating brakes compared to by the interconnection of this microgrid, also can may have influence on some further
For the state accessing switch at PCC, controlling simpler, the infringement to device is the least.
Along with the development of electronic traffic, power distribution network designs charging pile and becomes the most urgent and universal.Solve at present to fill
The mode of electricity stake distribution problem mainly has two classes: a class is by mechanisms such as national grids, sets up medium-and-large-sized filling in specific region
Power station, provides charging service for society's electric vehicle, and another kind of is to set up scattered filling at existing garden distribution network
Electricity stake, provides charging service for private electric vehicle.
First kind mode is disposed due to unified planning and concentrating, and whole volume is up to MW level, and in addition Based Intelligent Control, can be with
Time provide speed charging services for tens of vehicles, be effective way of promotion of a kind of medium-and-large-sized scale, but, such charging station
Needing independent planning newly-built, need MW level separate lines, take certain power capacity, newly-built investment is bigger.And Equations of The Second Kind side
Formula can take the capacity of original distribution system due to charging pile, widens peak valley effect, and dispersibility inconvenience management etc. by force is disagreeableness
Reason, it is not recommended that implement on a large scale.The garden distribution system of such as every 1MW the most only allows to set up less than ten alternating-current charging piles
(the most tens of about the kW of power total amount), is unsatisfactory for being actually needed, and really has the inconvenience in enforcement.
Microgrid contains distributed power source due to it, and has stronger system control ability, so being compared to passive power distribution
Net (does not has power supply) in power distribution network, can support that more charging pile is disposed.In existing technology, it is mostly single grid type micro-
Net establishes charging pile, but charging pile is considered as a kind of uncontrollable common load, not by charging pile and power plant and
Other loads carry out interaction, thus limit the effective utilization to charging pile.And actually charging pile is a kind of good controlled
Load, and be a kind of community service resource, need Large scale construction and management.When multiple one-level microgrids are coupled to two grades of microgrids
After, its network capacity is bigger, and the method for operation is more flexible, and further the deployment for charging pile provides advantage.The most every
Capacity is the deployment that two grades of microgrids of 1MW can receive the power total amount charging pile more than 200kW, is that common garden distribution can hold
Receive the several times of charging pile capacity, and do not affect current network security stable operation, it is not necessary to the network capacity extension is transformed.Wherein microgrid holds
Amount has refered in particular to the distribution capacity of microgrid.
Therefore, the first bus 12 of at least one microgrid in N number of microgrid in the electric power networks that the embodiment of the present invention provides
It is connected with charging pile 19.Due to multiple one-level microgrid cooperations, provide for each one-level microgrid that the loosest (electricity fills
Foot, the electricity that load needs can be the power plant supply of this microgrid self, it is also possible to be the supply of other microgrids, it is also possible to be
Electrical network supply) running environment, therefore can increase the deployment of charging pile in each one-level microgrid in right amount.It is contemplated that one-level
The practical situation of microgrid, needs to set up charging pile mostly, and such as one-level microgrid is arranged on the area such as residential quarter, factory district, these
Area there is a need to the electric vehicle of charging, or has other to need the equipment of charging.Accordingly, it is preferred that can in each microgrid,
Dispose one, two, even more than (at least two) charging pile, it is preferred that typically can dispose several to dozens of charging piles.Micro-
Multiple charging piles in net form at least one charging pile group, a general charging promising 4-8 charging pile of pile group.Need explanation
: the most multiple refer at least two.
Example, with reference to shown in Fig. 2, No. 1 microgrid, No. 2 microgrids, No. 3 microgrid these three microgrids connect group by interconnection
Become two grades of microgrids.Each one-level microgrid has power plant such as photovoltaic generation, energy storage device etc., and between microgrid
Interconnection switch Guan Bi after, the exchange of energy can be carried out between each microgrid.Due to above-mentioned combining operation mode, for each one
Level microgrid provides the loosest running environment.Therefore, in each microgrid, all deploy several to dozens of charging piles.
Embodiments provide a kind of electric power networks, multiple one-level microgrids are connected by interconnection, forms two grades
Microgrid, owing to the production capacity of each one-level microgrid is different with the rule of load, then can provide mutually standby electricity.It is to say, can
To allow one-level microgrid anti-power transmission power in two grades of microgrids, thus the supply and demand interaction bottleneck of single grid type microgrid can be overcome, greatly
What amplitude improved power plant in microgrid utilizes level, especially improves photovoltaic generation, the generating of wind power generation distributed sets
Standby utilizes level.
Secondly, for above-mentioned electric power networks, the present embodiment additionally provides the control system of a kind of electric power networks, this control system
System includes: N number of micro-net control device, the network scheduling device being connected with N number of micro-net control device, wherein, N >=2, and with often
The device level controller that individual micro-net control device is connected.Wherein, device level controller includes the controller of energy storage device, respectively generates electricity
The controller etc. of equipment, this device level controller also includes charging pile group controller in embodiments of the present invention.This control system
Also include: charging pile controls interface, charging pile.
In the present embodiment as a example by the electric power networks of three microgrid compositions, with reference to Fig. 4, the control system bag of this electric power networks
Include 3 micro-net control devices, i.e. No. 1 micro-net control device, No. 2 micro-net control devices and No. 3 micro-net control devices；And with 3
The network scheduling device that individual micro-net control device is connected.Wherein, each micro-net control device comes by controlling each device level controller
Complete the internal control of its microgrid to controlling, and be controlled by the network scheduling device of two grades of microgrids.Network scheduling device conduct
The management system of two grades of microgrids, has been used for the interface with electrical network (the access switch connected with electrical network) and has controlled, and to each micro-
The dispatch command of net.Such as: the control that integrated scheduling between each microgrid and microgrid group with which electrical network supply line connect
Completed by network scheduling device；The control of each microgrid power plant and load can be completed by respective micro-net control device.Ginseng
Examine Fig. 8, control as a example by charging pile group controller by No. 2 micro-net control devices, in order to allow the operation that charging pile can be more efficient, at this
Inventive embodiments does not allow No. 2 micro-net control devices directly control each charging pile and control interface, but No. 2 micro-net control devices
Control charging pile group controller, charging pile group controller control again each charging pile control interface, charging pile control Interface Controller its
The charging pile controlled.Wherein, charging pile group controller, as device level controller, communicatively accesses microgrid and controls dress
Put.One micro-net control device can manage multiple charging pile group controller simultaneously.Charging pile group controller is usually located at charging pile
Near, the quantity of the charging pile accessing charging pile controller depends primarily on space length, group the most nearby.Charging pile control
Device interface processed is on charging pile controller the interface being connected with charging pile.Charging pile controls interface timing to charging pile control
Following information is delivered to: this continuous discharge and recharge time on device；Current charged state (stop/charging)；Charging pile
Charging/stop charging control.
With reference to shown in Fig. 4, the control system of the electric power networks that the embodiment of the present invention provides also includes network operation device, net
Network operation device is connected with network scheduling device.The service data of two grades of microgrids is sent to network operation dress by network scheduling device
Put, carry out network operation management.Network operation device is for performing user's management, metering and transaction payment pipe for N number of microgrid
At least one in reason, plant asset management, Operation Decision.Constantly there is the two-way exchange of energy between microgrid, and microgrid is usual
Belonging to different owners or closing unit, so needing the real-time exchange amount of energy is added up, producing bill.Network operation
The data that device sends according to network scheduling device, constantly update statistical data.
Again, the embodiment of the present invention needs the power in electric power networks to be controlled (regulation), in order to understand the application
The direction of middle electric energy (current/power) and the implication of symbol, make following provisions in the present embodiment:
Mainly two grades, the current/power collection point microgrid of the electric power networks that the embodiment of the present invention provides is connected to the grid also
Site (can be PCC) and one-level microgrid be incorporated to two grades of microgrids site (can be potential device high side switch position, letter
Claim micro-grid connection point).
Current/power positive and negative: it be negative that general provision electric current flows into bus, electric current outflow bus is just.So power is also
Being the same, it is negative that power flows into bus, and it is just that power flows out bus.It should be understood that at the accompanying drawing of the embodiment of the present invention
In, the direction of arrow all represents the flow direction of current/power.In two grades of microgrids shown in reference Fig. 5 of example, No. 1 microgrid, No. 2 micro-
Net, No. 3 these 3 microgrid connection one microgrid groups of composition of microgrid.Arrow in the flow direction such as figure of current/power in electrical network and 3 microgrids
Shown in head direction.Then, it is known that the current/power now collected at No. 1 microgrid PCC is negative, when direction and current direction phase
Inverse time, then current/power is positive；And the current/power collected at No. 1 micro-grid connection point is positive, No. 2 micro-grid connection
The current/power that point collects is negative.
The positive direction of the current/power of the positive direction of current/power, opposite direction: PCC refers to from power network line micro-to two grades
Net injects the direction of electric energy, i.e. in Fig. 5, at current No. 1 microgrid PCC, the direction of current/power is to work as front in positive direction, with Fig. 5
It is the opposite direction of the current/power of PCC in the opposite direction.Same, and the positive direction of the current/power of site refers to two grades
Microgrid injects the direction of electric energy to one-level microgrid, i.e. in Fig. 5, at current No. 1 micro-grid connection point, the direction of current/power is square
To；At current No. 2 micro-grid connection points, the direction of current/power is opposite direction.
Visible, due to two grades of microgrid collection points (PCC) and the difference of one-level microgrid collection point (micro-grid connection point) position, lead
Caused to be similarly positive direction, current/power positive and negative on the contrary.Such as: in Fig. 5, the current/power direction of No. 1 microgrid PCC is just
Direction, but current/power is negative；No. 1 micro-grid connection point current/power direction is also positive direction, but current/power is just
's.It should be understood that following, for the ease of describing, positive direction is called for short forward, and opposite direction is called for short reversely, current/power reversely,
Reverse current/power, anti-power transmission power etc. are meant that current/power is reciprocal.
Embodiment two
Embodiments provide a kind of control method for above-mentioned electric power networks, with reference to shown in Fig. 6, concrete steps
Including:
S601 (optionally), network scheduling device receive the real-time of this microgrid that in microgrid group, each micro-net control device sends
Operational factor.
Wherein, the real time execution parameter of microgrid includes: the realtime power parameter of the also site of microgrid, and the power of microgrid
Hoisting power and power reduction capabilities.The realtime power parameter of the also site of microgrid can include the wattful power of micro-grid connection point
One or more in rate, reactive power, power factor, voltage and current.Realtime power parameter is used for being calculated real-time merit
Rate value, realtime power value is the active power value of micro-grid connection point.Such as, if realtime power parameter be reactive power and power because of
Number, then can pass through formula active power=reactive power/(1-power factor) and obtain；If realtime power parameter be power because of
Number, voltage and current, then can be obtained by formula active power=voltage * electric current * power factor；Other are existing seeks wattful power
The formula of rate can also, be not described in detail in this.
Owing to the present embodiment defining both forward and reverse directions and the sign symbol of power/current, therefore, when one-level microgrid also
The active power of site, reactive power, electric current be on the occasion of time, then it represents that power/current forward, now power/current is from two
Level microgrid flows to one-level microgrid；When the power/current of the also site of microgrid is negative value, then it represents that power/current is reverse,
Now power/current flows to two grades of microgrids from one-level microgrid.And the power of PCC is generally not capable of reversely, so the PCC of microgrid group
Realtime power parameter is forward all the time, owing to being now to flow into microgrid bus, therefore represents by negative value.
Example, with reference to shown in Fig. 5, No. 1 microgrid, No. 2 microgrids, 3 microgrids of No. 3 microgrids interconnection connects composition one
Two grades of microgrids, existing by the interconnection switch combined floodgate between No. 1 microgrid and No. 2 microgrids, the contact between No. 2 microgrids and No. 3 microgrids
Wiretap closes a floodgate, then three microgrid connection one microgrid group cooperations of composition.The electric current of wherein No. 1, No. 3 micro-grid connection point/
Power direction is forward, and the current/power direction of No. 2 micro-grid connection points is reverse, then the reverse electricity flowed out from No. 2 microgrids
Stream/power, then can be absorbed by No. 1 microgrid and/or No. 3 microgrids.In microgrid group, the backward power of some microgrid is by other microgrids
Being absorbed, in microgrid group, which microgrid has backward power or has several microgrid to have backward power unfettered.It is to say, work as
In microgrid group shown in Fig. 5, No. 2 microgrids and No. 3 microgrid current/power are reverse, when No. 1 microgrid current/power is still forward, that
No. 2 microgrids, the reverse current/power of No. 3 microgrids can also be absorbed by No. 1 microgrid.In the present embodiment preferably, Ren Yiwei
Net group not in electrical network foldback electric energy, arbitrary microgrid group the summation of the reverse current/power of each micro-grid connection point be not more than
The summation of forward current/power, certainly, in a microgrid group, the summation of the reverse current/power of each micro-grid connection point can be 0,
Now in this microgrid group, the current/power of each micro-grid connection point is forward.
Preferably, each micro-net control device, according to the default time cycle, sends this microgrid to network scheduling device and controls
The real time execution parameter of the microgrid that device is controlled.
Now, the real time execution parameter of No. 1 microgrid can be issued network scheduling device by No. 1 micro-net control device；No. 2 microgrids
Control device and the real time execution parameter of No. 2 microgrids can be issued network scheduling device；No. 3 micro-net control devices can be by No. 3 microgrids
Real time execution parameter issue network scheduling device.
Accordingly, network scheduling device can be according to the default time cycle (cycle that the most each micro-net control device sends)
Receive the real time execution parameter of each microgrid in each microgrid group.
Example, this predetermined period can be 15～60 minutes, such as, can be that every 15 minutes network scheduling devices receive
Once.
S602, for each microgrid group, network scheduling device obtains each microgrid in microgrid group and site allows
Big forward power parameter.
It should be noted that concrete, the network scheduling device in the embodiment of the present invention can only obtain each microgrid
And the maximum forward power parameter that site allows, use PmaxRepresent.Further, it is also possible to obtain the maximum anti-of micro-grid connection point
To power parameter, use P-maxRepresent, wherein Pmax、P-maxThe border in the Power operation interval that can allow as microgrid；Namely
Saying, this step may is that network scheduling device obtains the Power operation interval of permission, and this interval is by Pmax、P-maxLimit.
And the backward power of site owing to the present embodiment defining positive direction and the sign symbol of power/current, therefore,
Parameter is always negative value, forward power parameter be always on the occasion of, and, the size of backward power parameter with the size of its absolute value is
Standard, the i.e. absolute value of backward power parameter are the biggest, then it is assumed that this backward power parameter is the biggest, and wherein maximum reverse power parameter is i.e.
By the numerical value of maximum absolute value in the backward power parameter that also site is allowed of microgrid.
This is preferably a step: according to the default time cycle, obtain the P that in described microgrid group, each microgrid allowsmaxOr merit
Rate traffic coverage [P-max,Pmax].Example, this predetermined period can be identical with the cycle of step S601, is i.e. carrying out step
This step it is immediately performed after S601.Certainly, if not performing step S601, the cycle the most here can set as desired, show
Example can be 15～60 minutes, such as, can be every 15 minutes.Optionally, P microgrid allowedmaxOr [P-max,Pmax]
Acquisition, can according to practical experience be each microgrid set corresponding PmaxOr [P-max,Pmax].Such as: can be work people
Member by inputting the P of each microgrid with the interactive interface of network scheduling devicemaxOr [P-max,Pmax]；Further, can be every
A period of time regulation once (is re-entered once).The most such as: multiple P can also be prestored in network scheduling devicemaxOr
[P-max,Pmax] so that at set intervals for each microgrid from the multiple P prestoredmaxOr [P-max,PmaxOne is selected in]
Individual, the mode wherein selected can be optional one, it is also possible to is therefrom to select according to the rule preset.
Preferably, network scheduling device is according in the realtime power parameter of the PCC of described microgrid group and described microgrid group
The real time execution parameter of each microgrid, carries out short term power prediction and calculates the P that in described microgrid group, each microgrid allowsmaxOr
[P-max,Pmax], it is to obtain [P the most in actual applications-max,Pmax], below to obtain [P-max,PmaxExplanation as a example by].
Preferably, the control target that the network scheduling device of two grades of microgrids is final is that the power direction of microgrid group PCC is for just
To.The parameter power prediction that the network scheduling device of two grades of microgrids can receive according to step S601, calculates every the most in real time
The Power operation that individual one-level microgrid allows is interval.
Wherein, according to the real time execution parameter of microgrid each in microgrid group, carry out short term power prediction and calculate described microgrid
The Power operation interval that in group, each microgrid allows includes:
By the realtime power value in the current time period of the also site of microgrid and the realtime power in the historical time cycle
Value weighted sum, obtains power prediction value.Realtime power value in current time period can be the reality in current time period
Time performance number meansigma methods, the time cycle can be 15-60 minute, such as 15 minutes.The weight of weighted sum can be according to tool
Body situation sets, and does not limits at this.The historical time cycle can be the previous time cycle of current time period, it is also possible to
Period corresponding to some day, other reasonable historical time cycles also can, here is omitted.Power ascension energy according to microgrid
Power prediction value is modified by the power reduction capabilities of power or microgrid, to obtain power correction value；Determine and comprise power correction
The Power operation that one interval of value allows as microgrid is interval.It should be understood that final Power operation interval can be with
Power correction value is as the interval on border, it is also possible to be that power correction value is multiplied by a correction factor or one correction of plus-minus again
Coefficient also may be used as the interval on border, other reasonable situation.
Example, it is right with the history same day (such as yesterday) that the meansigma methods of the realtime power of current 15 minutes is multiplied by weight 0.6
The meansigma methods answering the realtime power of period is multiplied by the sum of weight 0.4, i.e. obtains power prediction value.Power prediction value is carried with power
The difference of the ability of liter is modified the maximum reverse power that obtains again as the interval left margin of Power operation.Again in which is carried out
Correction can be that the difference to power prediction value Yu power ascension ability takes absolute value and is multiplied by a correction factor or plus-minus the most again
One correction factor, then takes negative value.By power prediction value and power reduction capabilities and be again modified the maximum obtained
Forward power as the interval right margin of Power operation as power correction value.Again in which is modified can being power prediction
Value and power reduction capabilities and take absolute value and be multiplied by a correction factor the most again or add and subtract a correction factor, just then taking
Value.
S603, by each microgrid and site allow maximum forward power parameter send to microgrid microgrid control dress
Put, in order to micro-net control device controls the running status of charging pile in microgrid according to maximum forward power parameter.
It should be noted that in embodiments of the present invention, it is also possible to by the Power operation that also site allows of each microgrid
Interval sends the micro-net control device to microgrid, and then micro-net control device the most therefrom obtains maximum forward power parameter, herein
Repeat no more.
Concrete, the network scheduling device of two grades of microgrids is by between network scheduling device and each micro-net control device
Maximum forward power parameter is sent the micro-net control device to one-level microgrid by communication line.Example, as a example by Fig. 5, network
Dispatching device can send to No. 1 micro-net control device with the maximum forward power parameter that No. 1 microgrid allows, and is allowed by No. 2 microgrids
Maximum forward power parameter send to No. 2 micro-net control devices, the maximum forward power parameter allowed by No. 3 microgrids sends extremely
No. 3 micro-net control devices.Example again, network scheduling device can also by No. 1, No. 2, the maximum that each allows of No. 3 microgrids just
All sending No. 1 micro-net control device to power parameter, be also sent to No. 2 and No. 3 micro-net control devices, now No. 1 microgrid controls
Device can determine what self needed according to microgrid mark entrained during network scheduling device transmission maximum forward power parameter
Maximum forward power parameter；Certain No. 2 and No. 3 micro-net control devices just can also determine the maximum self needed in this way
To power parameter.
After micro-net control device receives the control command that the transmission of network scheduling device comprises maximum forward power parameter, micro-
In net group, the micro-net control device of each microgrid controls the running status of charging pile in microgrid according to maximum forward power parameter.By
Can be 15 minutes to 60 minutes in the cycle of network scheduling device transmitting order to lower levels, before upper once transmitting order to lower levels, microgrid controls
The maximum forward power parameter that device can have been used up in this control command received carries out power adjustments.
Embodiments provide the control method of a kind of electric power networks, for by multiple microgrid cooperations, then with
The electric power networks that electrical network is grid-connected.Network scheduling device obtains the maximum forward power parameter of its each microgrid controlled, and to microgrid
Control device and send this maximum forward power parameter.Achieve the power to the electric power networks that the embodiment of the present invention provides to control.
Embodiment three
Present embodiments providing the control method of a kind of electric power networks, wherein, electric power networks is with above-mentioned electric power networks.
The concrete steps of a kind of method controlling electric power networks provided for the embodiment of the present invention below, with reference to Fig. 7.Each step
Rapid executive agent can be micro-net control device.
The microgrid that S701 (optionally), micro-net control device are controlled to network scheduling device transmission micro-net control device
Real time execution parameter.
Example, as a example by Fig. 5, now No. 1 micro-net control device sends transporting in real time of No. 1 microgrid to network scheduling device
Line parameter, No. 2 micro-net control devices send the real time execution parameter of No. 2 microgrids, No. 3 micro-net control devices to network scheduling device
The real time execution parameter of No. 3 microgrids is sent to network scheduling device.
Accordingly, network scheduling device can obtain according to the parameter that the step of embodiment two sends according to micro-net control device
The maximum forward power parameter that each microgrid allows in microgrid group.
S702, micro-net control device receive the grid-connected of the microgrid that controlled of micro-net control device that network scheduling device sends
The maximum forward power parameter that point allows.
This step can be specifically micro-net control device with the certain predetermined cycle, within such as 15～60 minutes, receive
Big forward power parameter.It should be noted that can be to directly receive maximum forward power parameter here, it is also possible to be first to connect
Receive Power operation interval, then from Power operation interval, obtain maximum forward power parameter.
Wherein, Power operation interval includes: the maximum reverse power parameter of the also site of each microgrid and maximum forward merit
Rate parameter, according to the above-mentioned power/current both forward and reverse directions for microgrid and the regulation of sign symbol, in the present embodiment and site
Backward power parameter is always negative value, forward power parameter be always on the occasion of, and, the size of backward power parameter is with its absolute value
Size is as the criterion, i.e. the absolute value of backward power parameter is the biggest, then it is assumed that this backward power parameter is the biggest, wherein maximum reverse power
The numerical value of maximum absolute value in that parameter is microgrid and that site is allowed backward power parameter.
The maximum forward power ginseng that S703, micro-net control device allow with microgrid according to the realtime power P of micro-grid connection point
Number, determines the running status of charging pile in microgrid.
The control method of the electric power networks that the embodiment of the present invention provides is for the microgrid having charging pile, the fortune of charging pile
Row state is determined by corresponding micro-net control device.With reference to Fig. 2, in these two grades of microgrids, No. 1 microgrid, No. 2 microgrids, No. 3 microgrids this
Three microgrids connect one two grades of microgrid of formation by interconnection, if the interconnection switch between microgrid closes a floodgate, then form microgrid
Group.Assume that the interconnection switch of the most all microgrids closes a floodgate (not closing a floodgate in figure), then the connection of these three microgrid forms a microgrid
Group.In this microgrid group, each microgrid has charging pile, and the running status of the charging pile of No. 1 microgrid is by No. 1 micro-net control device certainly
Fixed, the running status of the charging pile of No. 2 microgrids is determined by No. 2 micro-net control devices, the running status of the charging pile of No. 3 microgrids by
No. 3 micro-net control devices determine.It should be understood that be, as a example by No. 2 microgrids, charging has been described in embodiments of the present invention
The control method of microgrid of stake, say, that if the microgrid in No. 1 microgrid or No. 3 microgrids or other two grades of microgrids has charging
Stake, can use the control method that the embodiment of the present invention provides.
Micro-net control device timing (1～5 second) refreshes the real time data of its microgrid controlled, wherein, the real-time number of microgrid
According to including the realtime power of micro-grid connection point, further can also include the realtime power of each power plant, load real-time
Power.
Example, with reference to shown in Fig. 5, No. 2 micro-net control devices refresh the real time data of No. 2 microgrids.No. 2 concrete microgrids
Real time data include that the realtime power P of No. 2 micro-grid connection points, the realtime power of photovoltaic power generation equipment, combustion gas trilogy supply generate electricity
The realtime power of equipment, the realtime power of energy storage device, the realtime power etc. of use electric line.
Also site realtime power P is compared in real time by micro-net control device with the maximum forward power parameter of setting.
If S704 microgrid and the realtime power P of site more than maximum forward power parameter, then control in microgrid first and fill
Electricity stake is in stopping charged state.
First charging pile is current to charging object charging, and the level of charge of this charging object is more than the first preset value
Charging pile.
Wherein, charging object can be the electric vehicle needing charging, such as electric motor car, electric automobile, Electric Transit
Car etc., it is also possible to be other equipment needing to charge.The level of charge of charging object can be the time of trickle charge, this
Time the first preset value (value set in advance preferably ensures that charge volume reaches the value of more than 50%) be charging object at least
The trickle charge time, such as, for direct-current charging post, the first preset value may be set between 30 minutes to 1 hour, for exchange
Charging pile, the first preset value (value set in advance) may be set between 2 hours to 4 hours.The level of charge of charging object is also
Can be the charge capacity of charging object be the percentage ratio of its specified charge volume, now the first preset value is a percentage
Number, such as, can be any number between 0%～100%, and the numerical value between generally 50%～90% is preferable, does not does at this
Limit, set with specific reference to practical situation.
In the present embodiment in order to just number axis is divided into 2 intervals with describing, separation is maximum forward power parameter
Pmax, as it is shown in figure 9, be respectively less than or equal to PmaxInterval 1, and more than PmaxInterval 2.
It should be noted that any one in adjacent two intervals can be divided in equal to the situation on border.Such as: be equal to
PmaxSituation can be divided into interval 1, it is also possible to being divided into interval 2, i.e. interval 1 is less than Pmax, interval 2 for being more than or equal to
Pmax。
P is more than maximum forward power parameter Pmax, then in interval 2.
Concrete, when the realtime power P of the also site of microgrid is more than maximum forward power parameter, under micro-net control device
Saying the word to charging pile group controller, order charging pile group controller closes down the charging more than the first preset value of the trickle charge time
Stake or order charging pile group controller close down the charge volume charging pile more than the first preset value.Thus can make micro-grid connection
The realtime power P of point, less than maximum forward power parameter, further can ensure that the properly functioning of whole two grades of microgrids.
Control the first charging pile and stop the process of charging particularly as follows: micro-net control device is not used to which selects charge
Stake should be in stopping charged state, but micro-net control device is to charging pile group controller transmitting order to lower levels, then by charging pile
Which charging pile is group controller select to be in stopping charged state.Charging pile group controller have received micro-net control device
Order after, screen the charging of eligible (level of charge is in more than the charging pile of the first preset value and stops charged state)
Stake, up to charging pile control unit interface under communication, stop the charging of this charging pile.Owing to charging pile has carried out first managing concentratedly, then
Accessing micro-net control device, administration by different levels simplifies the management difficulty of microgrid control system, preferably achieves for dispersibility
Stronger charging pile management.
Preferably, if the realtime power P of the also site of microgrid is more than maximum forward power parameter, then judge microgrid respectively may be used
Whether the output of the power plant of control is all higher than the second preset value；If the output of each controlled power plant in microgrid
It is all higher than the second preset value, then controls the first charging pile in microgrid and be in stopping charged state.
Wherein, the output of controlled power plant can be putting of the energy storage device that can control such as energy-storage battery etc.
Electrical power, it is also possible to be the output of the Distributed-generation equipment that can control such as combustion gas triple supply equipment etc..Second presets
Value is a value set in advance, can be the value of the output of controlled power plant, sets according to practical situation；Also may be used
To be the percentage ratio of rated output power of controlled power plant, can be any number between 0%～100%, typically
It is that 90% (now output is sufficiently large) is preferable, does not limits at this.
Concrete, when the realtime power P of the also site of microgrid is more than in maximum forward power parameter and microgrid each controlled
The output of power plant is all higher than the second preset value the two condition when meeting simultaneously, micro-net control device just transmitting order to lower levels
To charging pile group controller, order charging pile group controller closes down the first charging pile.
When in one-level microgrid containing multiple controlled power plant, all of controlled power plant must all is fulfilled for
State condition.The meaning meeting above-mentioned condition is, before being charged a control, needs preferentially to improve controlled power plant
The value of output, allows it reach setting value, the most offer electricity.Thus may be by regulating controlled power plant
Output make the realtime power P of micro-grid connection point less than maximum forward power parameter, thus just can close
The charging pile of charging, it is ensured that charging normal of charging object.
Owing to two grades of microgrids allow one-level microgrid anti-power transmission energy, by the utilization of Distributed-generation equipment in raising microgrid,
Can reduce by two grades of microgrids, one-level microgrid is in the generation of case of heavy load.Every capacity is that two grades of microgrids of 1MW can receive power
The deployment of the total amount charging pile more than 200kW, is the common garden distribution several times that can accommodate charging pile capacity, and does not affect current
Network security stable operation, it is not necessary to the network capacity extension is transformed.
Preferably, if the realtime power P of the also site of microgrid is each controlled more than in maximum forward power parameter and microgrid
The output of power plant is all higher than the second preset value, then judge in microgrid that the charge power of each charging pile group is whether more than the
Three preset values；If the charge power of a charging pile group place circuit is more than the 3rd preset value in microgrid, then in control microgrid, this fills
First charging pile of electricity pile group is in stopping charged state.
Wherein, the charge power of charging pile group can be the power of charging pile group place circuit, charging pile group place circuit
Power be to be obtained by the device measuring of measuring of charging pile group place circuit, and the measurement equipment of the pile group place circuit that charges can
To be controlled by micro-net control device, then the measurement device measuring of charging pile group place circuit obtains the pile group place line that charges
The power on road, is subsequently transmitted to micro-net control device；The measurement equipment of charging pile group place circuit can also be by charging
Pile group controller controls, then the device measuring of measuring of charging pile group place circuit obtains the merit of charging pile group place circuit
Rate, is subsequently transmitted to charging pile group controller, and charging pile group controller sends it to micro-net control device again.3rd is pre-
If value can be set value of the power, it is i.e. a value set in advance, can change according to practical situation, in the embodiment of the present invention
In may be configured as 30～50kW.
Concrete, when the realtime power P of the also site of microgrid is more than each controlled product in maximum forward power parameter, microgrid
The output of energy equipment is all higher than the charge power of a charging pile group place circuit in the second preset value and microgrid and is more than the 3rd
When preset value these three condition meets simultaneously, micro-net control device just transmitting order to lower levels to this charging pile group controller, order charging
Pile group controller closes down the first charging pile.
The charge power increasing the pile group place circuit that charges in microgrid is more than the 3rd this condition of preset value, can sentence in advance
Break and whether be necessary to change the running status of the charging pile in this charging pile group, so can simplify control, save the time.Example
, if the power of charging pile group place circuit is more than 50kW, it is believed that have multiple charging pile just at charge operation, at this moment by sentencing
Break and need to close down the first charging pile.If the power of charging pile group place circuit is less than 50kW, it is believed that need not close down first and fill
Electricity stake, because power is smaller, the effect that the running status of change charging pile plays is little.
If the realtime power P of the also site of S705 microgrid is less than maximum forward power parameter, then control respectively filling in microgrid
Electricity stake is in chargeable state.
Concrete, now, micro-net control device transmitting order to lower levels, to charging pile group controller, orders all charging piles can
Start to charge up and unrestricted.Control the chargeable process of all charging piles particularly as follows: micro-net control device is to charging pile team control
Device transmitting order to lower levels processed, after charging pile group controller have received the order of micro-net control device, screens eligible (all chargings
Stake) charging pile, up to charging pile control unit interface under communication, enter chargeable state.So can work as and there is a need to charging
When object accesses charging pile, charging object can charge in time.
It addition, P is equal to the situation of maximum forward power, can arbitrary according to the scheme in above-mentioned steps S704, S705
Individual carry out.
As long as the above-mentioned integral principle to the control method of charging pile running status is two grades of microgrid entirety is not at heavy duty
In the case of, all of charging pile can be operated in charged state.When needs stop section charging pile charges, have selected charging
Degree reach preset value charging pile, make the electric vehicle just charged unaffected, and be stopped the electric vehicle of charging
Through having filled the electric power more than 50%, and after two grades of microgrid entirety are no longer under case of heavy load, recovered charged state at once,
Stop the charging interval short.
The concrete control flow of above-mentioned steps S702-S705, with reference to shown in Figure 13, concretely comprises the following steps:
S131, micro-net control device timing (1～5 second) refreshes its real time execution parameter controlling microgrid, by also site merit
Rate P compares with maximum forward power parameter.
S132, it is judged that P > maximum forward power parameter？If being more than, then perform S133, otherwise perform S134.
S133, it is judged that in microgrid, the output of each controlled power plant is all higher than the second preset value？If being more than, then hold
Row S135, otherwise performs S136.
S134, micro-net control device orders, and in microgrid, all charging piles are in " chargeable state ", terminates.
S135, it is judged that the charge power of charging pile group place circuit is more than the 3rd preset value？If being more than, then perform S137,
Otherwise terminate.
S136, increases the output of the controlled power plant not being more than the second preset value, then performs S132.
S137, in charging pile group, level of charge " stops charging " more than the charging pile of the first preset value, terminates.
Embodiments provide the control method of a kind of electric power networks, for by multiple microgrid cooperations, then with
The electric power networks that electrical network is grid-connected.Micro-net control device sends real-time parameter to the timing of network scheduling device, and receives network scheduling
The maximum forward power parameter that each microgrid that device sends allows, then according to P and the maximum forward of permission of micro-grid connection point
The relation of power parameter determines the running status of charging pile in microgrid, it is achieved thereby that the power network that the embodiment of the present invention is provided
The control of network.
Embodiment four
Embodiments providing a kind of network scheduling device, for electric power networks, described electric power networks is above-mentioned
Electric power networks, this device can be software or hardware, and wherein the realization of each functional module is referred to above-described embodiment two,
This repeats no more.As shown in Figure 10, this device includes:
Acquiring unit 101, obtains the also site of each microgrid in described microgrid group for network scheduling device and allows
Big forward power parameter；
Transmitting element 102, for sending the maximum forward power parameter that also site allows of described each microgrid to institute
State the micro-net control device of microgrid, in order to described micro-net control device controls described microgrid according to described maximum forward power parameter
The running status of middle charging pile.
Optionally, acquiring unit 101, it is additionally operable to according to the default time cycle, obtains each microgrid in described microgrid group
And site allow maximum forward power parameter.
Optionally, acquiring unit 101 includes:
Receive subelement 1011, for receiving the described microgrid that the micro-net control device of each microgrid in described microgrid group sends
Real time execution parameter, described real time execution parameter includes: described microgrid and the realtime power parameter of site, and described micro-
The power ascension ability of net and power reduction capabilities, described realtime power parameter is used for obtaining realtime power value.
Determine subelement 1012, for by described microgrid and site current time period in realtime power value with go through
Realtime power value weighted sum in the history time cycle, obtains power prediction value；Power ascension ability according to described microgrid or
Described power prediction value is modified by the power reduction capabilities of described microgrid, to obtain power correction value；Determine described in comprising
The right margin in one interval of power correction value is as the maximum forward power parameter of described microgrid.
It should be noted that acquiring unit 101 can be to possess reception on the control device of electric power networks in the present embodiment
The interface circuit of function has coordinated with processor, such as: can be obtained for asking for Power operation district by interface circuit
Between parameter, preprocessor ask for obtaining maximum forward power parameter according to these parameters；It can certainly be hardware circuit
Ask for obtaining maximum forward power parameter according to these parameters.Example, interface circuit can be receiver or information connects
Mouthful.Transmitting element 102 can be that the interface circuit controlling to possess on device sending function of electric power networks completes, such as: can
To send, by interface circuit, the maximum forward power parameter order that microgrid allows, example, interface circuit can be transmitter
Or information transmission interface.These unit can also be for the processor individually set up, it is also possible to be integrated in network of network scheduling dress
Some processor put realizes, in addition it is also possible to be stored in network of network dispatching device with the form of program code
In memorizer, some processor of network of network dispatching device call and perform the function of above unit.Here
Described processor can be a central processing unit (English full name: Central Processing Unit, English abbreviation:
CPU), or specific integrated circuit (English full name: Application Specific Integrated Circuit, English
It is called for short: ASIC), or is configured to implement one or more integrated circuits of the embodiment of the present invention.
Embodiments provide a kind of network scheduling device, for the electric power networks of embodiment of the present invention offer, real
Show the control of the running status of charging pile in each microgrid.
Embodiment five
Embodiments providing a kind of micro-net control device, for electric power networks, described electric power networks is above-mentioned
Electric power networks, this device can be software or hardware, and wherein the realization of each functional module is referred to above-described embodiment three,
This repeats no more.As shown in figure 11, this device includes:
Receive unit 111, receive, for micro-net control device, the described micro-net control device institute that network scheduling device sends
The maximum forward power parameter that also site allows of the microgrid controlled；
Control unit 112, if joining more than described maximum forward power for the realtime power P of the also site of described microgrid
Number, then control the first charging pile in described microgrid and be in stopping charged state, and described first charging pile is current to charging object
Charging, and the level of charge of this charging object is more than the charging pile of the first preset value；And/or, if the also site of described microgrid
Realtime power P is less than described maximum forward power parameter, then each charging pile controlled in described microgrid is in chargeable state.
Optionally, control unit 112, if the realtime power P for the also site of described microgrid is more than described maximum forward
Power parameter, then judge in described microgrid, whether the output of each controlled power plant is all higher than the second preset value；If institute
State the output of each controlled power plant in microgrid and be all higher than the second preset value, then control the first charging pile in described microgrid
It is in stopping charged state.
Optionally, control unit 112, if the realtime power P for the also site of described microgrid is more than described maximum forward
In power parameter and described microgrid, the output of each controlled power plant is all higher than the second preset value, then judge described microgrid
In the charge power of each charging pile group whether more than the 3rd preset value；
If the charge power of a charging pile group place circuit is more than the 3rd preset value in described microgrid, then control described microgrid
Described in charge the first charging pile of pile group be in stopping charged state.
It should be noted that the unit 111 that receives in the present embodiment can be to possess on the control device of electric power networks to connect
Receive the interface circuit of function, such as receiver or information receiving interface.Other unit can be the processor individually set up, it is also possible to
It is integrated in some processor controlling device of electric power networks and realizes, in addition it is also possible to store with the form of program code
In electric power networks control device memorizer in, by electric power networks control device some processor call and perform with
The function of upper unit.Processor described here is identical with embodiment four.
Embodiments provide a kind of micro-net control device, for the electric power networks of embodiment of the present invention offer, real
Show the control of the running status of charging pile in each microgrid.
Embodiment six
Embodiments providing the control system of a kind of electric power networks, described electric power networks is above-mentioned power network
Network, with reference to Figure 12, this control system includes: the network scheduling device device described in embodiment four and the microgrid described in embodiment five
Control device.Wherein the realization of each device is referred to above-described embodiment, does not repeats them here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method are permissible
Realize by another way.Such as, device embodiment described above is only schematically, such as, and described unit
Dividing, be only a kind of logic function and divide, actual can have other dividing mode, the most multiple unit or assembly when realizing
Can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown or
The coupling each other discussed or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit
Close or communication connection, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, shows as unit
The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the present embodiment scheme
's.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to
It is that the independent physics of unit includes, it is also possible to two or more unit are integrated in a unit.Above-mentioned integrated list
Unit both can realize to use the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit and realizes.
The above-mentioned integrated unit realized with the form of SFU software functional unit, can be stored in an embodied on computer readable and deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions with so that a computer
Equipment (can be personal computer, server, or the network equipment etc.) performs the portion of method described in each embodiment of the present invention
Step by step.And aforesaid storage medium includes: (Read-Only Memory is called for short for USB flash disk, portable hard drive, read only memory
ROM), random access memory (Random Access Memory is called for short RAM), magnetic disc or CD etc. are various can store
The medium of program code.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although
With reference to previous embodiment, the present invention is described in detail, it will be understood by those within the art that: it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent；
And these amendment or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (11)
1. an electric power networks, it is characterised in that including: N number of microgrid, described N >=2；
Each described microgrid includes: the first bus connected by potential device and the second bus, and wherein, described first bus is used
In connecting power plant and load；The second bus in each described microgrid is by interconnection and described N number of microgrid at least one
Second bus of other microgrids individual is connected, and described interconnection is provided with interconnection switch, and described interconnection switch is used for controlling
The microgrid that system is connected connects or disconnects；
Described N number of microgrid is divided into M microgrid group, and each microgrid often organized is connected by described interconnection, and each microgrid group is by public affairs
Junction point PCC connects with electrical network supply line altogether, and in described N number of microgrid, the first bus of at least one microgrid is with charging pile even
Connect, 1≤M≤N.
Electric power networks the most according to claim 1, it is characterised in that each described microgrid also includes: be positioned at the first bus
And the potential device high side switch that second between bus.
3. the control method of an electric power networks, it is characterised in that described electric power networks is the electric power described in claim 1 or 2
Network；
Described control method includes: for each described microgrid group, network scheduling device obtains each microgrid in described microgrid group
And site allow maximum forward power parameter；
The maximum forward power parameter that also site allows of described each microgrid is sent the micro-net control device to described microgrid,
So that described micro-net control device controls the running status of charging pile in described microgrid according to described maximum forward power parameter.
Control method the most according to claim 3, it is characterised in that in described acquisition described microgrid group, each microgrid is also
The maximum forward power parameter that site allows includes:
According to the default time cycle, obtain the maximum forward power ginseng that also site allows of each microgrid in described microgrid group
Number.
Control method the most according to claim 4, it is characterised in that in described acquisition described microgrid group, each microgrid is also
The maximum forward power parameter that site allows includes:
Receive the real time execution parameter of described microgrid that the micro-net control device of each microgrid in described microgrid group sends, described in real time
Operational factor includes:
Described microgrid and the realtime power parameter of site, and the power ascension ability of described microgrid and power reduction capabilities,
Described realtime power parameter is used for obtaining realtime power value；
By the realtime power value in the current time period of the also site of described microgrid and the realtime power in the historical time cycle
Value weighted sum, obtains power prediction value；
Described power prediction value is repaiied by power ascension ability or the power reduction capabilities of described microgrid according to described microgrid
Just, to obtain power correction value；
Determine the right margin maximum forward power parameter as described microgrid in the interval comprising described power correction value.
6. the control method of an electric power networks, it is characterised in that described electric power networks is the electric power described in claim 1 or 2
Network；
Described control method includes:
The also site of the microgrid that the described micro-net control device that micro-net control device reception network scheduling device sends is controlled permits
The maximum forward power parameter permitted；
If described microgrid and the realtime power P of site more than described maximum forward power parameter, then control in described microgrid the
One charging pile is in stopping charged state, and described first charging pile is current to charging object charging, and the filling of this charging object
Electricity degree is more than the charging pile of the first preset value；And/or,
If the realtime power P of the also site of described microgrid is less than described maximum forward power parameter, then control in described microgrid
Each charging pile is in chargeable state.
Control method the most according to claim 6, it is characterised in that
If described microgrid and the realtime power P of site more than described maximum forward power parameter, then control in described microgrid the
One charging pile is in stopping charged state and includes:
If the realtime power P of the also site of described microgrid is more than described maximum forward power parameter, then judge in described microgrid each
Whether the output of controlled power plant is all higher than the second preset value；
If the output of each controlled power plant is all higher than the second preset value in described microgrid, then control in described microgrid
One charging pile is in stopping charged state.
Control method the most according to claim 7, it is characterised in that
If the output of each controlled power plant is all higher than the second preset value in described microgrid, then control in described microgrid
One charging pile is in stopping charged state and includes:
If the output of each controlled power plant is all higher than the second preset value in described microgrid, then judge in described microgrid each
Whether the charge power of charging pile group place circuit is more than the 3rd preset value；
If the charge power of a charging pile group place circuit is more than the 3rd preset value in described microgrid, then control institute in described microgrid
The first charging pile stating charging pile group is in stopping charged state.
9. a network scheduling device, it is characterised in that be used for controlling electric power networks, described electric power networks is claim 1 or 2
Described electric power networks, for each described microgrid group, this device includes:
Acquiring unit, obtains the maximum forward merit that also site allows of each microgrid in described microgrid group for network scheduling device
Rate parameter；
Transmitting element, for sending the maximum forward power parameter that also site allows of described each microgrid to described microgrid
Micro-net control device, in order to described micro-net control device controls charging pile in described microgrid according to described maximum forward power parameter
Running status.
10. a micro-net control device, it is characterised in that be used for controlling electric power networks, described electric power networks be claim 1 or
Electric power networks described in 2, this device includes:
Receiving unit, it is micro-that the described micro-net control device for micro-net control device reception network scheduling device transmission is controlled
The maximum forward power parameter that also site allows of net；
Control unit, if the realtime power P for the also site of described microgrid is more than described maximum forward power parameter, then controls
In described microgrid, the first charging pile is in stopping charged state, and described first charging pile is current to charging object charging, and should
The level of charge of charging object is more than the charging pile of the first preset value；And/or, if the realtime power P of the also site of described microgrid
Less than described maximum forward power parameter, then each charging pile controlled in described microgrid is in chargeable state.
The control system of 11. 1 kinds of electric power networks, it is characterised in that described electric power networks is the electric power described in claim 1 or 2
Network, this control system includes: the network scheduling device described in claim 9 and the microgrid described in claims 10 control dress
Put.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703900A (en) * | 2019-09-23 | 2020-01-17 | 苏州浪潮智能科技有限公司 | Power control method and device for cloud computing environment |
| US11056890B2 (en) | 2017-11-23 | 2021-07-06 | Abb Power Grids Switzerland Ag | Microgrid control system and method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130099565A1 (en) * | 2011-04-15 | 2013-04-25 | Deka Products Limited Partnership | Modular power conversion system |
| CN104410076A (en) * | 2014-12-12 | 2015-03-11 | 新奥科技发展有限公司 | Distributed energy network system, microgrid, network scheduling system and forming method thereof |
| CN105515083A (en) * | 2015-08-20 | 2016-04-20 | 樊朝晖 | Electric vehicle group charging microgrid control method supporting secure dynamic capacity-increase |
| CN105529793A (en) * | 2015-10-08 | 2016-04-27 | 李庄 | Control method for electromobile group-charging microgrid simultaneously serving as emergency power supply |
-
2016
- 2016-09-12 CN CN201610817933.9A patent/CN106253348B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130099565A1 (en) * | 2011-04-15 | 2013-04-25 | Deka Products Limited Partnership | Modular power conversion system |
| CN104410076A (en) * | 2014-12-12 | 2015-03-11 | 新奥科技发展有限公司 | Distributed energy network system, microgrid, network scheduling system and forming method thereof |
| CN105515083A (en) * | 2015-08-20 | 2016-04-20 | 樊朝晖 | Electric vehicle group charging microgrid control method supporting secure dynamic capacity-increase |
| CN105529793A (en) * | 2015-10-08 | 2016-04-27 | 李庄 | Control method for electromobile group-charging microgrid simultaneously serving as emergency power supply |
Non-Patent Citations (1)
| Title |
|---|
| TIANGUANG LV,ETC: ""An interactive operation model for distribution network with multi-microgrids to optimize wind power integration"", 《RENEWABLE POWER GENERATION (RPG 2015), INTERNATIONAL CONFERENCE, IEEE》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11056890B2 (en) | 2017-11-23 | 2021-07-06 | Abb Power Grids Switzerland Ag | Microgrid control system and method thereof |
| CN110703900A (en) * | 2019-09-23 | 2020-01-17 | 苏州浪潮智能科技有限公司 | Power control method and device for cloud computing environment |
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