CN104836334B - A kind of autonomous and coordinated control system of low pressure micro-capacitance sensor group - Google Patents
A kind of autonomous and coordinated control system of low pressure micro-capacitance sensor group Download PDFInfo
- Publication number
- CN104836334B CN104836334B CN201410045929.6A CN201410045929A CN104836334B CN 104836334 B CN104836334 B CN 104836334B CN 201410045929 A CN201410045929 A CN 201410045929A CN 104836334 B CN104836334 B CN 104836334B
- Authority
- CN
- China
- Prior art keywords
- micro
- capacitance sensor
- control
- sub
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Independently and coordinated control system, the control system is mechanical floor, network control layer and team control layer using heterarchical architecture to a kind of low pressure micro-capacitance sensor group.Micro-capacitance sensor group controller receives the dispatch command of group's level EMS, from the control targe and the security reliability of sub- micro-capacitance sensor of micro-capacitance sensor group, come control micro-capacitance sensor group between power distribution network and each sub- micro-capacitance sensor exchanges power, the off-network of micro-capacitance sensor group or be incorporated into the power networks, the grid-connected or off-grid operation of sub- micro-capacitance sensor etc., and the Interface Controller between sub- micro-capacitance sensor and micro-capacitance sensor group is realized, while issuing control instruction to net level controller.Net level controller is carried out to the Optimal Control Strategy of distributed power source, energy storage and load, realize sub- micro-capacitance sensor from and net state under stable operation and state between seamlessly transit, and the information exchange with micro-capacitance sensor group controller.Power supply or the Local Controller of energy storage complete distributed power source and energy storage to frequency and the Primary regulation of voltage, and load governor completes the grading control of load.
Description
Technical field
The present invention relates to the group of the micro-capacitance sensor in renewable energy power generation field operation and control field, especially a kind of low pressure
Micro-capacitance sensor group is independently and coordinated control system.
Background technology
The appearance of micro-capacitance sensor fundamentally changes the mode of tradition reply load growth, from the point of view of system, micro- electricity
Net can neatly expand power system capacity as controllable, and the reliability of available redundancy parallel connection raising system is with high
System is maintainable.But extensive regenerative resource digestion capability is not enough, distribution link relative thin is weak, use because China's power network is present
There are urgent need to intelligent power grid technology in the problems such as interactive level of electricity is relatively low, and electric automobile and energy storage technology development
Ask, thus propose the concept of micro-capacitance sensor group, micro-capacitance sensor group is the product that micro-capacitance sensor develops into certain phase.Micro-capacitance sensor group
It is same as that a capacity is bigger, element is more, the wider array of micro-capacitance sensor of scope, the component units of micro-capacitance sensor group are micro-capacitance sensors, each height
Micro-capacitance sensor except under group's pattern have common operational objective in addition to, it is other in the case of they may have the operational objective of oneself.
The research in the current field is controlled primarily directed to the coordination of micro-capacitance sensor, mutual to the distributed power source in micro-capacitance sensor
Coordinate, reasonable load sharing power.As a kind of coordination control method for micro-grid system, it is a kind of based on four-dimensional energy management space
Multistage grid control method, a kind of micro-capacitance sensor distributed power source hierarchical coordinative control system and method, one kind are based on public company
The micro electric network coordination controller of contact platform, frequency hierarchical coordinative control method, power network suitable for storing up isolated micro-capacitance sensor containing bavin
Multi-agent optimized coordination control method etc., its control model mainly has centralized Control, master ＆ slave control, equity control and is layered
The modes such as control, but fail to utilize distributed resource in other micro-capacitance sensors, in the case of supporting without major network, micro-capacitance sensor during its operation
The stability and reliability of system is not high, how by designing common objective each independent micro-capacitance sensor is joined under the conditions of off-network
Network operation, realizes that energy mutually helps, and many microgrid power-balances there is no effective ways to solve.
The single micro-capacitance sensor of tradition only off-grid operation and the two ways that is incorporated into the power networks, can not utilize other micro-capacitance sensors during operation
In distributed resource, fail sufficiently realize regenerative resource maximally utilize with it is maximized guarantee load power supply can
By property.Micro-capacitance sensor group energy enough makes full use of respective characteristic to realize mutual supplement with each other's advantages, and micro-capacitance sensor group is compared with micro-capacitance sensor, component units
Difference, in turn results in the difference of operational objective level and control structure, it is micro- that micro-capacitance sensor group energy enough makes full use of self-character to solve
The distributed and coordinated control of power network, can not only make full use of distributed energy, while can guarantee that the stable operation of system.Therefore,
Expansion is needed badly to mutual support of the power distribution network containing multiple micro-capacitance sensors and coordinated operation problem, the Harmonic Control to micro-capacitance sensor group
Research.
The content of the invention
（One）The technical problem to be solved
A kind of low pressure micro-capacitance sensor group proposed by the invention is independently and coordinated control system.Each sub- micro-capacitance sensor is except in group
Have under pattern outside common operational objective, they there can be the operational objective of oneself in the case of other, disperse operational management
The task and risk of control, can realize larger range of resource consolidation while different sub- micro-capacitance sensor operational objectives are met, hair
Bigger value is shot, the optimization operation of each sub- micro-capacitance sensor is preferably realized.Certain journey can be realized inside micro-capacitance sensor group
The energy of degree is mutually helped, while improving distributed energy utilization rate, and the electric energy of more high-quality can be provided for load.
From the method for operation, every sub- micro-capacitance sensor can also take off group's operation, whole micro-capacitance sensor faciation pair to a certain degree
It can be incorporated into the power networks in power distribution network with grid-connected, off-network or part, realize the variation of operational mode, improve power system pair
The ability to accept of distributed energy.The present invention realize micro-capacitance sensor group hierarchical control, improve load is powered reliability, can
The utilization rate and system security reliability of the renewable sources of energy and the ability for tackling various situations.
（Two）Technical scheme
In order to solve the above-mentioned technical problem, it is described low the invention provides a kind of low pressure micro-capacitance sensor group from primal coordination system
Pressure micro-capacitance sensor group includes from primal coordination system：Load governor, wind control device, photovoltaic controller, energy storage controller, sub micro- electricity
Net controller, micro-capacitance sensor group controller；The low pressure micro-capacitance sensor is mined massively with three layers of control structure, i.e. team control layer, network control layer and set
Standby layer；The network control layer and team control layer use double-network redundant ethernet communication network；The sub- micro-capacitance sensor controller is in institute
State load governor, the wind control device, the photovoltaic controller, the base of the energy storage controller autonomous control Primary regulation
Secondary Control is used as on plinth；Micro-capacitance sensor group controller is used as three regulations, Xiang Wei electricity on the basis of sub- micro-capacitance sensor autonomous control
Net controller sends control instruction.
It is preferred that, team control layer, network control layer and the mechanical floor that the low pressure micro-capacitance sensor group is used are described in detail below：
（1）The team control layer, micro-capacitance sensor group controller receives the Optimized Operation plan of group's EMS issue, possessed
The function that micro-capacitance sensor group's level coordinates control includes controlling micro-capacitance sensor group to exchange power, realization between power distribution network and each sub- micro-capacitance sensor
Micro-capacitance sensor group off-network or be incorporated into the power networks, the adjustment from cutting-in control and benchmark job point of sub- micro-capacitance sensor；The team control layer root
According to micro-capacitance sensor group and the connection shape of the connection status of power distribution network points of common connection, sub- micro-capacitance sensor and micro-capacitance sensor group's points of common connection
State, sub- micro-capacitance sensor adjustability and sub- micro-capacitance sensor exert oneself priority to micro-capacitance sensor group running status divide；Group is grid-connected
During operation, power output is by power distribution network control, and micro-capacitance sensor works in power control mode in group；During group's off-grid operation, if group
Interior sub- micro-capacitance sensor stored energy capacitance ratio is between 0.5 to 2, then sub- micro-capacitance sensor is controlled using equity in group, otherwise with stored energy capacitance
Micro-capacitance sensor uses power control mode in other groups as main control unit from sub- micro-capacitance sensor in maximum group；Micro-capacitance sensor can adjust
Ability is a charge value relevant with the duration, and the charge value is assessed by sub- micro-capacitance sensor and made after self-ability and institute
State charge value and issue group controller, the charge value is the need for considering to meet itself and micro-capacitance sensor deals with the nargin of emergency situations
Afterwards, the ability externally provided supports that the group controller determines the power that sub- micro-capacitance sensor is externally showed according to the charge value
Limit value；
（2）The network control layer, sub- micro-capacitance sensor controller receives the Optimized Operation plan of Home Network level EMS issue,
Simultaneously receive micro-capacitance sensor group controller control instruction, according to sub- micro-capacitance sensor and micro-capacitance sensor group points of common connection connection status and
The state-of-charge of energy storage is divided to the running status of sub- micro-capacitance sensor；Micro-capacitance sensor controller dynamic regulation mechanical floor unit
Reference power point realize micro-capacitance sensor control；When micro-grid connection is run, mode of operation is by group controller control；Off-grid operation
When, generate electricity and be less than with electricity condition, wind-force or the intermittent distributed power source of photovoltaic use maximum power control, and energy-storage units are provided
Hair, electricity consumption imbalance power, the Primary regulation of system are the droop control of energy storage unit；Secondary Control is by changing energy-storage units
Reference power point realize；Generate electricity and be more than with electricity condition, intermittent distributed power source uses inverse dip control mode, energy storage list
Member uses droop control mode；Energy storage and distributed power source participate in Primary regulation jointly；When the voltage wave produced by power swing
Dynamic more to prescribe a time limit, Secondary Control is by changing the reference power point of energy-storage units and the inverse dip coefficient reality of intermittent distributed power source
It is existing；Use the control mode using micro-capacitance sensor controller as main control unit；
（3）Described mechanical floor, energy-storage units, using current control method, are tracked when being incorporated into the power networks by phaselocked loop
The frequency and phase of line voltage；Using voltage-frequency control, such as distribution network failure in the case of micro-capacitance sensor off-grid operation
Cause micro-capacitance sensor off-grid operation, set up and maintain the voltage and frequency of micro-capacitance sensor, instantaneous imbalance power in system is received automatically
Stabilize the fluctuation of voltage and frequency.
It is preferred that, the transient state control method taken for micro-capacitance sensor group's off-network situation：
1）Micro-capacitance sensor group's islanding control is main by busbar voltage is out-of-limit, sub- micro-capacitance sensor error protection is exited, in sub- micro-capacitance sensor
The event triggerings such as portion's failure is bypassed the immediate leadership, off-network impact load input；When sub- micro-capacitance sensor internal fault or impact load are put into,
Actively disconnected with micro-capacitance sensor group, prevent other sub- micro-capacitance sensor malfunctions；Such as fruit micro-capacitance sensor internal fault is bypassed the immediate leadership, and other sons are micro-
Power network is disconnected by micro-capacitance sensor group controller；More prescribed a time limit in group's off-network busbar voltage, each sub- micro-capacitance sensor is disconnected, it is to avoid phase
Mutually interference；
2）During micro-capacitance sensor is all risen and moved, start time storage micro-capacitance sensor and be first connected with similar micro-capacitance sensor, afterwards with scene
Store up micro-capacitance sensor connection synchronous；In running, first synchronous during sub- micro-capacitance sensor, connection of closing a floodgate afterwards is incorporated to；Micro-capacitance sensor group, which is incorporated to, to be matched somebody with somebody
The power network time stores up micro-capacitance sensor and is incorporated to micro-capacitance sensor successively with wind-light storage micro-capacitance sensor, to reduce the impact to power distribution network, each other not
Active synchronization；
3）Micro-capacitance sensor group is grid-connected to leave net, when distribution or micro-capacitance sensor flock-mate stream busbar voltage are discontented with the requirement of pedal system, then
Switch to off-network pattern；When carrying out that micro-capacitance sensor group is grid-connected to leave net, micro-capacitance sensor group's points of common connection switching protective device control is opened
Power distribution network is driven in shut-off, and presses under micro-capacitance sensor group principal and subordinate or reciprocity control model to sub- micro-capacitance sensor setting power control mode or electricity
Pressure-frequency is control mode；
4）Micro-capacitance sensor group's off-network turns grid-connected, after distribution network restoration is powered, and is filled by micro-capacitance sensor group's points of common connection switch protection
Frequency, amplitude, the phase with micro-capacitance sensor group's tuning controller detection points of common connection both sides voltage are put, if meeting synchronous want
Ask, input micro-capacitance sensor group's points of common connection switch；Or sub- micro-capacitance sensor is switched to by off-network pattern according to system requirements, control simultaneously
Micro-capacitance sensor group's points of common connection switch is put into, each sub- micro-capacitance sensor is under voltage-frequency control model by energy storage regulation and power distribution network
It is synchronous grid-connected, and it is transferred to grid-connect mode.
（Three）Beneficial effect
A kind of low pressure micro-capacitance sensor group proposed by the invention independently with coordinated control system and method, disperseed operational management
The task and risk of control, can realize larger range of resource consolidation, more while different sub- micro-capacitance sensor operational objectives are met
The good optimization for realizing each sub- micro-capacitance sensor operation.Realize that a certain degree of energy mutually helps inside micro-capacitance sensor group, improve point
While cloth energy utilization rate, the electric energy of more high-quality is provided for load.From the method for operation, operational mode is realized
Variation, improve ability to accept of the power system to distributed energy.
The present invention is mainly suitable for the control operation of micro-capacitance sensor group, the mutual support of many micro-capacitance sensors is realized and to many micro-capacitance sensors
Support to power distribution network, realizes the power supply reliability maximally utilized with maximized guarantee load of regenerative resource.Have wide
Wealthy application prospect.The present invention has high stability, can realize that energy mutually helps, and the characteristics of independently being controlled with coordination can produce considerable
Economic benefit and good social benefit.The safety of power system can be improved by stability and power consumer using the invention
Power supply reliability, improve user's efficiency simultaneously reduce carbon dioxide and noxious gas emission, enable clean energy resource maximized
Utilize.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is one according to the autonomous and coordinated control system of low pressure micro-capacitance sensor group of the invention a kind of and its application method
The micro-capacitance sensor team control flow chart of embodiment；
Fig. 2 is one according to the autonomous and coordinated control system of low pressure micro-capacitance sensor group of the invention a kind of and its application method
The micro-capacitance sensor group of embodiment coordinates control principle drawing.
Embodiment
With reference to Figure of description and embodiment, the embodiment to the present invention is described in further detail.With
Lower embodiment is merely to illustrate the present invention, but can not be used for limiting the scope of the present invention.
Low pressure micro-capacitance sensor group independently includes load governor, wind control device, photovoltaic controller, energy storage control with coordinating system
Device processed, sub- micro-capacitance sensor controller, micro-capacitance sensor group controller, network control layer and team control layer use double-network redundant ethernet communication network.
Micro-capacitance sensor is mined massively with three layers of control structure, i.e. mechanical floor, network control layer and team control layer, tactic pattern introducing communication system
Unite but not exclusively it is relied on, the control in the case of communication failure using low one layer continues to micro-capacitance sensor steady as standby
Fixed operation.
(1) team control layer
Micro-capacitance sensor group controller receives the Optimized Operation plan of group's EMS issue, possesses micro-capacitance sensor group's level and coordinates
The function of control includes control micro-capacitance sensor group and exchanging power, realize the off-network of micro-capacitance sensor group between power distribution network and each sub- micro-capacitance sensor
Or be incorporated into the power networks, the adjustment from cutting-in control and benchmark job point of sub- micro-capacitance sensor；The team control layer is according to micro-capacitance sensor group with matching somebody with somebody
The connection status of power network points of common connection, sub- micro-capacitance sensor and micro-capacitance sensor group points of common connection connection status, sub- micro-capacitance sensor is adjustable
Energy-conservation power and sub- micro-capacitance sensor exert oneself priority to micro-capacitance sensor group running status divide；When group is incorporated into the power networks, power output
By power distribution network control, micro-capacitance sensor works in power control mode in group；During group's off-grid operation, if sub- micro-capacitance sensor energy storage is held in group
Ratio is measured between 0.5 to 2, then sub- micro-capacitance sensor is controlled using equity in group, otherwise with micro-capacitance sensor in the maximum group of stored energy capacitance
As main control unit, power control mode is used from sub- micro-capacitance sensor in other groups；Micro-capacitance sensor adjustability is one and continued
Time relevant charge value, the charge value is assessed by sub- micro-capacitance sensor to be made after self-ability and the charge value is issued team control
Device processed, the charge value is to consider to meet the need for itself and after micro-capacitance sensor deals with the nargin of emergency situations, is externally provided
Ability supports that the group controller determines the power limit that sub- micro-capacitance sensor is externally showed according to the charge value；Micro-capacitance sensor team control
Device processed is adjusted on the basis of micro-capacitance sensor autonomous control as upper level, and control instruction is sent to micro-capacitance sensor controller, is maintained micro-
The security and stability operation of power network, realizes power dynamic equilibrium, and then realize the unattended and web teletransmission work(of micro-capacitance sensor group
Energy.
(2) network control layer
Sub- micro-capacitance sensor controller receives the Optimized Operation plan of Home Network level EMS issue, while receiving micro-capacitance sensor
The control instruction of group controller, according to the connection status and the state-of-charge of energy storage of sub- micro-capacitance sensor and micro-capacitance sensor group's points of common connection
Running status to sub- micro-capacitance sensor is divided；The reference power point of micro-capacitance sensor controller dynamic regulation mechanical floor unit is real
Existing micro-capacitance sensor control；When micro-grid connection is run, mode of operation is by group controller control.During off-grid operation, generate electricity and be less than electricity consumption
Under state, wind-force or the intermittent distributed power source of photovoltaic use maximum power control, and energy-storage units provide hair, the uneven work(of electricity consumption
Rate, the Primary regulation of system is the droop control of energy storage unit；Secondary Control is real by the reference power point for changing energy-storage units
It is existing；Generate electricity and be more than with electricity condition, intermittent distributed power source uses inverse dip control mode, energy-storage units use droop control
Mode；Energy storage and distributed power source participate in Primary regulation jointly；It is secondary to adjust when the voltage pulsation produced by power swing is more prescribed a time limit
The inverse dip coefficient for saving the reference power point by changing energy-storage units and intermittent distributed power source is realized；Use with micro-capacitance sensor
Controller is the control mode of main control unit；
(3) mechanical floor
Energy-storage units are when being incorporated into the power networks, using current control method, by phaselocked loop track line voltage frequency and
Phase；Micro-capacitance sensor off-network is caused to be transported using voltage-frequency control, such as distribution network failure in the case of micro-capacitance sensor off-grid operation
OK, the voltage and frequency of micro-capacitance sensor are set up and maintained, receives instantaneous imbalance power in system to stabilize voltage and frequency automatically
Fluctuation；
Photovoltaic, wind power generation unit are to use maximum power control pattern, with peak power to power network active power of output,
Power factor is 1.0.When the power that micro-capacitance sensor can not receive intermittent power source to send, it is necessary to suitably reduce generator unit input
To the power of micro-capacitance sensor.
In order to ensure the power-on time of load, load presses the switching of energy storage charge state Hysteresis control load.
The algorithm of master-slave control mode and reciprocity control model is described in detail below.
1）Master-slave control mode algorithm
Boss's micro-capacitance sensor externally runs on voltage-frequency pattern in micro-capacitance sensor group, and its voltage, the setting value of frequency are by micro- electricity
Net group controller is determined, determines that the value and power reference of its output is as follows from sub- micro-capacitance sensor according to busbar voltage, frequency：
kpi、kqiRespectively voltage reference of the micro-capacitance sensor group controller to i-th of sub- micro-capacitance sensor
It is worth setting, frequency reference value setting, the setting of active power reference value, reactive power reference value, sub- micro-capacitance sensor i wattful power
The sagging coefficient of rate and the sagging coefficient of reactive power,Respectively sub- micro-capacitance sensor i active power and reactive power is defeated
Go out, Ui、fiRespectively sub- micro-capacitance sensor i voltage and frequency.
2）Reciprocity control model algorithm
Every sub- micro-capacitance sensor is accordingly to be regarded as voltage-frequency node, and the frequency of output changes with the change of output reactive power,
In reactive power increase（Reduce）When it is slightly elevated（Reduction）；Voltage changes with the change of active power of output, in idle work(
Rate increases（Reduce）When slightly reduce（Rise）.Such as formula（1）It is shown：
In formula, Δ U is line drop.
Micro-capacitance sensor group controller reads every sub- micro-capacitance sensor and the voltage at micro-capacitance sensor group's points of common connection in real time, if voltage
In fluctuation range, the control strategy of sub- micro-capacitance sensor does not do any regulation；If beyond scope range of the fluctuation of voltage, coordinating to control by group
Policy calculation processed issues power, voltage reference value or sagging coefficient to each sub- micro-capacitance sensor controller, then by micro-capacitance sensor controller
Next stage control is realized by micro electric network coordination strategy, control flow is as shown in Figure 1.
Mainly take transient state control as follows in the case of micro-capacitance sensor group's off-network：
1）Micro-capacitance sensor group's islanding control is main by busbar voltage is out-of-limit, sub- micro-capacitance sensor error protection is exited, in sub- micro-capacitance sensor
The event triggerings such as portion's failure is bypassed the immediate leadership, off-network impact load input；When sub- micro-capacitance sensor internal fault or impact load are put into,
Actively disconnected with micro-capacitance sensor group, prevent other sub- micro-capacitance sensor malfunctions；Such as fruit micro-capacitance sensor internal fault is bypassed the immediate leadership, and other sons are micro-
Power network is disconnected by micro-capacitance sensor group controller；More prescribed a time limit in group's off-network busbar voltage, each sub- micro-capacitance sensor is disconnected, it is to avoid phase
Mutually interference；
2）During micro-capacitance sensor is all risen and moved, it is contemplated that blower fan is exerted oneself to be influenceed by wind speed randomness, in wind generator system
With being likely to cause larger voltage pulsation at grid interface；And photovoltaic generating system and micro-capacitance sensor are connected caused voltage pulsation
With flickering very little, the voltage fluctuation and flicker value of micro-capacitance sensor will not be caused out-of-limit, and the time of adjustment power output is very fast；Start
Time storage micro-capacitance sensor is first connected with similar micro-capacitance sensor, synchronous with the connection of wind-light storage micro-capacitance sensor afterwards；In running, son is incorporated to micro-
It is first synchronous during power network, connection of closing a floodgate afterwards；Micro-capacitance sensor group is incorporated to power distribution network time storage micro-capacitance sensor and wind-light storage micro-capacitance sensor successively simultaneously
Enter micro-capacitance sensor, to reduce the impact to power distribution network, not active synchronization each other；
3）Micro-capacitance sensor group is grid-connected to leave net
When distribution or micro-capacitance sensor flock-mate stream busbar voltage are discontented with the requirement of pedal system, then switch to off-network pattern；It is micro- in progress
Power network group is grid-connected, and micro-capacitance sensor group's points of common connection switching protective device controlling switch disconnects power distribution network when leaving net, and by micro- electricity
Power control mode or voltage-frequency are set to sub- micro-capacitance sensor as control mode under net group principal and subordinate or reciprocity control model；
4）Micro-capacitance sensor group's off-network turns grid-connected
After distribution network restoration is powered, by micro-capacitance sensor group's points of common connection switching protective device and micro-capacitance sensor group's tuning controller
Frequency, amplitude, the phase of points of common connection both sides voltage are detected, if meeting synchronous requirement, input micro-capacitance sensor group is commonly connected
Point switch；Or sub- micro-capacitance sensor is switched to by off-network pattern according to system requirements, while controlling input micro-capacitance sensor group's points of common connection
Switch, each sub- micro-capacitance sensor is synchronous with power distribution network grid-connected by energy storage regulation under voltage-frequency control model, and is transferred to grid-connected mould
Formula.
Embodiment of above is merely to illustrate the present invention, rather than limitation of the present invention.Although with reference to embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that, to technical scheme carry out it is various combination,
Modification or equivalent substitution, without departure from the spirit and scope of technical solution of the present invention, the right that all should cover in the present invention is wanted
Ask among scope.
Claims (2)
1. a kind of autonomous coordinated control system of low pressure micro-capacitance sensor group, it is characterized in that, the low pressure micro-capacitance sensor group is from primal coordination control
System includes：Load governor, wind control device, photovoltaic controller, energy storage controller, sub- micro-capacitance sensor controller, micro-capacitance sensor group
Controller；The low pressure micro-capacitance sensor is mined massively with three layers of control structure, i.e. team control layer, network control layer and mechanical floor；Network control layer and
The team control layer uses double-network redundant ethernet communication network；The sub- micro-capacitance sensor controller is in the load governor, described
Secondary Control is used as on the basis of wind control device, the photovoltaic controller, the energy storage controller autonomous control Primary regulation；
Micro-capacitance sensor group controller, as three regulations, control is sent to sub- micro-capacitance sensor controller on the basis of sub- micro-capacitance sensor autonomous control
Instruction；
Wherein, team control layer, network control layer and the mechanical floor that the low pressure micro-capacitance sensor group is used are described in detail below：
(1) the team control layer, micro-capacitance sensor group controller receives the Optimized Operation plan of group's EMS issue, possesses micro- electricity
The function that net group's level coordinates control includes control micro-capacitance sensor group and exchanging power, realize micro- electricity between power distribution network and each sub- micro-capacitance sensor
Net group off-network or be incorporated into the power networks, the adjustment from cutting-in control and benchmark job point of sub- micro-capacitance sensor；The team control layer is according to micro-
Power network group and the connection status of power distribution network points of common connection, the connection status of sub- micro-capacitance sensor and micro-capacitance sensor group's points of common connection, son
Micro-capacitance sensor adjustability and sub- micro-capacitance sensor exert oneself priority to micro-capacitance sensor group running status divide；Group is incorporated into the power networks
When, power output is by power distribution network control, and micro-capacitance sensor works in power control mode in group；During group's off-grid operation, if sub in group
Micro-capacitance sensor stored energy capacitance ratio is between 0.5 to 2, then sub- micro-capacitance sensor is controlled using equity in group, otherwise maximum with stored energy capacitance
Group in micro-capacitance sensor uses power control mode from sub- micro-capacitance sensor as main control unit, in other groups；Micro-capacitance sensor adjustability
It is a charge value relevant with the duration, the charge value is assessed by sub- micro-capacitance sensor and made after self-ability and the electricity
Value issues group controller, the charge value be the need for considering to meet itself and micro-capacitance sensor deal with emergency situations nargin it
Afterwards, the ability externally provided supports that the group controller determines that the power that sub- micro-capacitance sensor is externally showed is limited according to the charge value
Value；
(2) the network control layer, sub- micro-capacitance sensor controller receives the Optimized Operation plan of Home Network level EMS issue, simultaneously
The control instruction of micro-capacitance sensor group controller is received, according to the connection status and energy storage of sub- micro-capacitance sensor and micro-capacitance sensor group's points of common connection
State-of-charge the running status of sub- micro-capacitance sensor is divided；The base of micro-capacitance sensor controller dynamic regulation mechanical floor unit
Quasi- power points realizes micro-capacitance sensor control；When micro-grid connection is run, mode of operation is by group controller control；During off-grid operation, hair
Electricity is less than with electricity condition, and wind-force or the intermittent distributed power source of photovoltaic use maximum power control, and energy-storage units provide hair, used
Electric imbalance power, the Primary regulation of system is the droop control of energy storage unit；Secondary Control is by changing the bases of energy-storage units
Quasi- power points is realized；Generate electricity and be more than with electricity condition, intermittent distributed power source uses inverse dip control mode, energy-storage units are adopted
Use droop control mode；Energy storage and distributed power source participate in Primary regulation jointly；When the voltage pulsation produced by power swing is got over
In limited time, Secondary Control is realized by the inverse dip coefficient of the reference power point and intermittent distributed power source that change energy-storage units；
Use the control mode using micro-capacitance sensor controller as main control unit；
(3) mechanical floor described in, energy-storage units, using current control method, power network are tracked by phaselocked loop when being incorporated into the power networks
The frequency and phase of voltage；Micro- electricity is caused using voltage-frequency control, distribution network failure in the case of micro-capacitance sensor off-grid operation
Net off-grid operation, sets up and maintains the voltage and frequency of micro-capacitance sensor, receives instantaneous imbalance power in system to stabilize voltage automatically
With the fluctuation of frequency.
2. a kind of autonomous coordinated control system of low pressure micro-capacitance sensor group according to claim 1, for micro-capacitance sensor group's off-network feelings
The transient state control method that condition is taken：
1) micro-capacitance sensor group islanding control is main by busbar voltage is out-of-limit, sub- micro-capacitance sensor error protection is exited, the event of sub- micro-capacitance sensor inside
Barrier is bypassed the immediate leadership, the input event triggering of off-network impact load；When sub- micro-capacitance sensor internal fault or impact load are put into, actively with
Micro-capacitance sensor group disconnects, and prevents other sub- micro-capacitance sensor malfunctions；Bypass the immediate leadership such as fruit micro-capacitance sensor internal fault, other sub- micro-capacitance sensors by
Micro-capacitance sensor group controller is disconnected；More prescribed a time limit in group's off-network busbar voltage, each sub- micro-capacitance sensor is disconnected, it is to avoid mutually dry
Disturb；
2) during micro-capacitance sensor is all risen and moved, start time storage micro-capacitance sensor and be first connected with similar micro-capacitance sensor, it is micro- with wind-light storage afterwards
Power network connection is synchronous；In running, first synchronous during sub- micro-capacitance sensor, connection of closing a floodgate afterwards is incorporated to；Micro-capacitance sensor group is incorporated to power distribution network
Time stores up micro-capacitance sensor and is incorporated to micro-capacitance sensor successively with wind-light storage micro-capacitance sensor, to reduce the impact to power distribution network, each other not actively
It is synchronous；
3) micro-capacitance sensor group is grid-connected leaves net, when distribution or micro-capacitance sensor flock-mate stream busbar voltage are discontented with the requirement of pedal system, then switchs to
Off-network pattern；When carrying out that micro-capacitance sensor group is grid-connected to leave net, micro-capacitance sensor group's points of common connection switching protective device controlling switch is broken
Power distribution network is driven, and is pressed under micro-capacitance sensor group principal and subordinate or reciprocity control model to sub- micro-capacitance sensor setting power control mode or voltage-frequency
Rate is control mode；
4) micro-capacitance sensor group off-network turn it is grid-connected, after distribution network restoration is powered, by micro-capacitance sensor group points of common connection switching protective device and
Frequency, amplitude, the phase of micro-capacitance sensor group's tuning controller detection points of common connection both sides voltage, if meeting synchronous requirement, throw
Enter micro-capacitance sensor group's points of common connection switch；Or sub- micro-capacitance sensor is switched to by off-network pattern according to system requirements, while controlling input
Micro-capacitance sensor group's points of common connection switch, each sub- micro-capacitance sensor is synchronous with power distribution network by energy storage regulation under voltage-frequency control model
It is grid-connected, and it is transferred to grid-connect mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045929.6A CN104836334B (en) | 2014-02-08 | 2014-02-08 | A kind of autonomous and coordinated control system of low pressure micro-capacitance sensor group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045929.6A CN104836334B (en) | 2014-02-08 | 2014-02-08 | A kind of autonomous and coordinated control system of low pressure micro-capacitance sensor group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104836334A CN104836334A (en) | 2015-08-12 |
| CN104836334B true CN104836334B (en) | 2017-08-25 |
Family
ID=53814028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410045929.6A Active CN104836334B (en) | 2014-02-08 | 2014-02-08 | A kind of autonomous and coordinated control system of low pressure micro-capacitance sensor group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104836334B (en) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375483B (en) * | 2015-12-16 | 2018-09-18 | 东南大学 | A kind of source/net/storage/lotus coordinated management system and method for energy Internet service |
| CN105576837A (en) * | 2016-03-18 | 2016-05-11 | 东南大学 | Micro-grid-group distribution-type three-level cooperation power control method |
| CN105914794B (en) * | 2016-05-17 | 2018-05-04 | 东南大学 | An a kind of wind-powered electricity generation group of planes based on STATCOM/BESS coordinates booting-self controller method |
| CN106099875A (en) * | 2016-07-07 | 2016-11-09 | 周丽玲 | A kind of based on distributed power generation grid-connected transition method of operation coordination comprehensive method of protection |
| CN106253346B (en) * | 2016-09-12 | 2018-11-30 | 新奥科技发展有限公司 | A kind of control method of electric power networks, apparatus and system |
| CN106253344B (en) * | 2016-09-12 | 2018-12-18 | 新奥科技发展有限公司 | A kind of electric power networks and its control system and control method, network scheduling device |
| CN106253347B (en) * | 2016-09-12 | 2018-10-30 | 新奥科技发展有限公司 | A kind of control method of electric power networks, apparatus and system |
| CN106505551A (en) * | 2016-11-04 | 2017-03-15 | 国网江苏省电力公司扬州供电公司 | A kind of light storage DC power-supply system based on cooperative control device |
| WO2018091102A1 (en) * | 2016-11-18 | 2018-05-24 | Abb Schweiz Ag | Synchronization of microgrids with each other |
| CN106532730B (en) | 2016-12-28 | 2019-01-29 | 江苏金风科技有限公司 | Micro-capacitance sensor dynamic stability control system and method |
| CN106505630B (en) * | 2016-12-30 | 2018-09-25 | 南京邮电大学 | Isolated island micro-capacitance sensor frequency voltage control method for coordinating based on event trigger mechanism |
| CN106712114B (en) * | 2017-02-24 | 2019-03-19 | 国网江苏省电力公司泗阳县供电公司 | A kind of active distribution network quantization of amplitude Optimization Scheduling considering environmental benefit |
| CN108092283A (en) * | 2017-10-20 | 2018-05-29 | 张爱国 | A kind of electric system electrical power stabilization optimization method |
| CN108054780A (en) * | 2018-01-04 | 2018-05-18 | 青岛特来电新能源有限公司 | Micro-capacitance sensor energy management system, method and device |
| CN108565898B (en) * | 2018-03-02 | 2021-05-14 | 国电南京自动化股份有限公司 | Distributed micro-grid group energy scheduling method based on neural network |
| CN108394298A (en) * | 2018-03-16 | 2018-08-14 | 中国科学院广州能源研究所 | Highway distribution light-storage-fills the self-service charging station of alternating current-direct current series-parallel connection microgrid |
| CN108599379B (en) * | 2018-06-01 | 2022-02-15 | 南方电网科学研究院有限责任公司 | Power monitoring system for micro-grid group |
| CN108964038A (en) * | 2018-07-19 | 2018-12-07 | 国网上海市电力公司 | Active distribution network state smooth sliding control method and power distribution network based on energy storage |
| CN109256863B (en) * | 2018-10-24 | 2020-08-11 | 科华恒盛股份有限公司 | Micro-grid energy control method and micro-grid system |
| CN110048450A (en) * | 2019-03-21 | 2019-07-23 | 国网浙江省电力有限公司电力科学研究院 | Isolated island micro-capacitance sensor photovoltaic-autonomous coordination control strategy of energy storage and control system |
| CN111834994B (en) * | 2019-04-18 | 2024-02-02 | 中国电力科学研究院有限公司 | Electric energy optimal distribution method and system for distributed power grid connection |
| CN110210777B (en) * | 2019-06-11 | 2021-05-04 | 上海电力学院 | Power distribution network reliability assessment method containing micro-grid and electric vehicle charging station |
| CN110365044A (en) * | 2019-07-02 | 2019-10-22 | 北京群菱能源科技有限公司 | A kind of micro-capacitance sensor multimode self-adaptive wavelet base system |
| CN111082435B (en) * | 2019-12-13 | 2021-10-08 | 葛洲坝中科储能技术有限公司 | Output control system and method for wind power and compressed air energy storage |
| CN113708412B (en) * | 2021-10-09 | 2023-09-15 | 北方工业大学 | Weak connection structure and method for micro-grid group and low-voltage power distribution network |
| CN115224697B (en) * | 2022-07-20 | 2024-07-16 | 北京能高自动化技术股份有限公司 | Hierarchical energy management method for multistage comprehensive energy micro-grid |
| CN116488350B (en) * | 2023-05-26 | 2023-10-27 | 南京中汇电气科技有限公司 | Distributed new energy group control group modulation system and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001225A (en) * | 2012-11-14 | 2013-03-27 | 合肥工业大学 | MAS-based (multi-agent system) multi-microgrid energy management system simulation method |
| US8583288B1 (en) * | 2010-05-28 | 2013-11-12 | Comverge, Inc. | System and method for using climate controlled spaces as energy storage units for “receiving” surplus energy and for “supplying” energy when needed |
-
2014
- 2014-02-08 CN CN201410045929.6A patent/CN104836334B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8583288B1 (en) * | 2010-05-28 | 2013-11-12 | Comverge, Inc. | System and method for using climate controlled spaces as energy storage units for “receiving” surplus energy and for “supplying” energy when needed |
| CN103001225A (en) * | 2012-11-14 | 2013-03-27 | 合肥工业大学 | MAS-based (multi-agent system) multi-microgrid energy management system simulation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104836334A (en) | 2015-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104836334B (en) | A kind of autonomous and coordinated control system of low pressure micro-capacitance sensor group | |
| Bharath et al. | A review on DC microgrid control techniques, applications and trends | |
| CN110601248B (en) | Multi-mode coordination control method of annular alternating current-direct current hybrid micro-grid system | |
| Wen et al. | Energy management and coordinated control strategy of PV/HESS AC microgrid during islanded operation | |
| CN104659804B (en) | Micro-capacitance sensor containing hybrid energy-storing and its control method | |
| CN103138290B (en) | Microgrid seamless switching control method based on improving phase control under peer mode | |
| CN103730908B (en) | Method for controlling energy storage converters in large-scale off-grid micro-grid | |
| CN103956778A (en) | Micro-grid system and networking method based on phase angle droop control | |
| CN108599191B (en) | A kind of electric power spring power decoupling control method of belt current inner ring | |
| CN105743127A (en) | Household new energy power generation intelligent control system and control method | |
| CN104319816A (en) | Optical storage alternating current and direct current hybrid micro-grid system and control method thereof | |
| CN103532214A (en) | Photovoltaic power generation system structure integrating energy storage and grid-connected and off-grid power supply functions and control method | |
| CN106169752B (en) | Main power source flexible switching method under a kind of micro-capacitance sensor off-network mode | |
| CN103001247A (en) | Off-network-type microgrid black-start method | |
| KR102028134B1 (en) | A droop frequency controller for maintaining different frequency qualities in stand-alone multi-micro-grid system and the stand-alone multi-micro-grid system using the droop frequency controller | |
| CN108365627B (en) | Wind storage isolated grid power supply system coordination control method based on flexible coordination factors | |
| CN105305430A (en) | Power quality promotion method of light storage power generation system based on hierarchical control | |
| Chandrasena et al. | Operation and control of a hybrid AC-DC nanogrid for future community houses | |
| CN108988324A (en) | One kind being based on SOC and output power balance control method | |
| CN107910889A (en) | A kind of grid-connected control method of photovoltaic micro | |
| Khongkhachat et al. | Droop control strategy of AC microgrid in islanding mode | |
| Sharmila et al. | An overview on design and control schemes of microgrid | |
| CN103236713A (en) | Micro-grid network, method for controlling same and bidirectional converter for micro-grid | |
| Wang et al. | Research on coordinated control strategy of photovoltaic energy storage system | |
| CN106712113A (en) | Droop control method of voltage source inverter for photovoltaic energy storage independent microgrid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |