CN109473965A - A kind of direct-flow distribution system characteristic polymerization scheduler and polymerization dispatching method - Google Patents
A kind of direct-flow distribution system characteristic polymerization scheduler and polymerization dispatching method Download PDFInfo
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- 239000007943 implant Substances 0.000 claims description 5
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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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
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- H02J13/0003—
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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- 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
- Y04S10/40—Display of information, e.g. of data or controls
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- 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
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
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Abstract
A kind of direct-flow distribution system characteristic polymerization scheduler and polymerization dispatching method, belong to direct-flow distribution system monitoring and scheduling technical field.Scheduler is made of control mainboard, remote I/O control module, intelligent DC acquisition module, voltage hall sensor, current Hall sensor, power module, touch screen, communication switching module and signal lamp.Scheduler has the communication network of modular hardware system and multi-zone supervision, the operation information of direct-flow distribution system can be acquired real-time, quickly, and current system mode is judged rapidly, when system is in abnormal condition, corresponding control measure are taken, realize the safe and stable operation of direct-flow distribution system；It can also realize that virtual inertia control, damping control, trace scheduling plan, electric car such as orderly charge at the energy management functionalities, realize the flexible dispatching and efficiently management of direct-flow distribution system.
Description
Technical field
The present invention relates to a kind of direct-flow distribution system characteristic polymerization scheduler and polymerization dispatching methods, belong to DC distribution
System monitoring dispatching technique field.
Background technique
Current electric system has more and more DC loads to occur, such as electric car, lighting system, mobile phone, together
When, country carries forward vigorously the use of clean energy resource, and renewable energy power generation proportion is higher and higher, most of renewable energy
What power generation directly exported is direct current, and energy-storage battery is also direct current input.The power supply of these direct current properties and be supported on it is traditional
A large amount of unsteady flow link is needed when accessing in AC system, and has a large amount of electric energy to be lost during this, in addition, due to
Renewable energy power generation has randomness and fluctuation, and AC system considers that active and idle control is sufficiently complex.Direct current is matched
Electric system can save AC/DC for the access of DC power supply and DC load because it is not influenced by idle and frequency properties
Unsteady flow link, can be used as the expansion of conventional AC net, obtained more and more applications.
The stable operation of direct-flow distribution system be unable to do without control and management, the monitoring and dispatching system of current distribution system with
PC machine is the more of platform, although PC machine resource is more, live use is not convenient enough, and flexibility is lacking, and executes speed
It is not fast enough.Therefore, have the characteristics that fast high-efficient, speed, function modoularization, convenient, flexible and multiple functional scheduler for
Direct-flow distribution system is of great significance and application value.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of direct-flow distribution system characteristic polymerization scheduler and polymerization
Dispatching method.
A kind of direct-flow distribution system characteristic polymerization scheduler, including control mainboard, intelligent acquisition module, power module, touching
Screen, communication switching module and signal lamp are touched,
Control mainboard is the hardware core of scheduler, while being also its software operation carrier, and main task is to run simultaneously
Each application program is managed, realizes that the operation to direct-flow distribution system controls；Control mainboard is by high-performance microprocessor, multiple pass
Letter interface, multichannel general digital I/O interface GPIO, USB interface, reseting module, RTC clock module, power interface, expansion are deposited
Module composition is stored up, there can be the parallel ability for executing multitask with implant data library, may be performed simultaneously multiple complicated processes；
Intelligent acquisition module includes: that remote I/O control module, intelligent DC acquisition module, voltage hall sensor and current Hall pass
Sensor；
Remote I/O control module is responsible for the control of acquisition and the switch motion of each switch state of completion system, each to switch
Refer to the auxiliary switch of the dc circuit breaker on each route of system；It is capable of the switch state of automatic collection line attachment, has more
Road DI digital-quantity input interface and multichannel DO relay output interface, are all made of light-coupled isolation to input/output signal, have
RS485, RS232, Ethernet multiple communication interface support Modbus, ethernet communication protocol.Each route of direct-flow distribution system
The auxiliary switch contact of dc circuit breaker is connected with the DI input interface of remote I/O control module and DO output interface, Jin Eryuan
Journey I/O control module realizes the acquisition and control of switch state, then is communicatively transmitted to control mainboard；
Intelligent DC acquisition module is responsible for acquiring the electric quantity information on each route of direct-flow distribution system；It can be automatically performed
Acquisition to the voltage, electric current of line attachment, have RS485, RS232, Ethernet multiple communication interface, support Modbus, with
Too Network Communication agreement.The collection process of voltage, electric current on each route of direct-flow distribution system is by voltage hall sensor and electricity
Stream Hall sensor obtains voltage, current signal on each route, and is respectively connected to the voltage signal of intelligent DC acquisition module
Input interface and current signal input interface, intelligent DC acquisition module carry out the survey of voltage, electric current, power, electric energy electrical quantity
It calculates, then is communicatively transmitted to control mainboard；
Power module is made of uninterruptible power supply UPS and power conversion module；UPS, which is exported, stablizes 220V alternating current, is remote
Journey I/O control module and the power supply of intelligent DC acquisition module, and the power input as power conversion module；Power conversion module
It is made of rectifying and wave-filtering, inversion, isolation transformation, current rectifying and wave filtering circuit, 220V alternating current is converted into 12V and 24V two-way direct current
Electricity output, is connected with the power interface of control mainboard and touch screen respectively, provides stable DC for it；
The function of touch screen is operating status graphical, that digitization shows direct-flow distribution system, including DC distribution system
Total topological flow state interface display of system, energy-storage system runnable interface is shown, photovoltaic system runnable interface is shown, charging pile fortune
Row interface display, load operation interface display, operation curve interface display, historical data interface display, local runtime scheduling life
Input interface, alarm display, user management are enabled, touch screen has high capacity Flush, ethernet interface, RS485/232 string
Port communications interface, USB interface；
Communication switching module has multichannel CAN, RS485, RS232, Ethernet, fiber optic data communication interface, by DC distribution system
The condense together RS485/232 communication interface for accessing control mainboard, CAN of the signal of communication of each equipment and control mainboard is logical in system
Believe interface, ethernet interface and fiber optic data communication interface.
Signal lamp includes power supply indicator, run indicator, malfunction indicator lamp, and power supply indicator and malfunction indicator lamp are 2V
The red LED lamp of power supply, malfunction indicator lamp are the green LED lamp of 3V power supply, and the signal lamp of scheduler connects control mainboard, scheduling
The signal lamp of device is controlled by the output of the general digital I/O interface GPIO of control mainboard；After power module powers on, power supply refers to
Show that long bright the expressions power supply of lamp is normal, when control mainboard works normally, run indicator flashes, malfunction indicator lamp control mainboard just
Normal operating time goes out, and failure duration is bright.
Control mainboard implant data library, database are divided into data storage area and order memory block.Data storage area storage one
The operation data of direct-flow distribution system in the section time, flow data, electrical energy changer 1, battery management including each route
The operation data of the equipment such as system 9.Order memory block stores the traffic order issued by grid control centre and by control mainboard
The control command of each equipment for the direct-flow distribution system that the policing algorithm run in 12 generates.
A kind of direct-flow distribution system characteristic polymerization dispatching method, comprising the following steps:
Step 1), information collection step: each route, node, electrical energy changer, battery management system are real in acquisition system
When operation data；
Step 2), system mode visualization step: by each route of direct-flow distribution system, each equipment operating condition to scheme
Shape, curve, data Real time dynamic display mode show, intuitively show direct-flow distribution system operating condition；
Step 3), system mode rate-determining steps: control and the transformation of electrical energy dress of direct-flow distribution system route upper switch are realized
The working state control set；The problem of judging system according to the operation data of direct-flow distribution system, and take immediately
Regulating measures；Realize virtual inertia control, damping control, trace scheduling plan and the orderly charge control energy management of electric car
Step.
The acquisition of direct-flow distribution system full spectrum information may be implemented in the present invention, can solve that may be present more in system
Kind problem, therefore, referred to as direct-flow distribution system characteristic polymerize scheduler.
A kind of direct-flow distribution system characteristic polymerization dispatching method, including the following contents；
(1) virtual inertia controls: in view of the voltage regulation capability of existing current transformer is insufficient, if photovoltaic, charging load
Appearance is fluctuated and DC bus-bar voltage is caused larger fluctuation occur, and power grid, energy-storage system, the electric car of charging, photovoltaic are utilized
System can provide the characteristics of inertia power is supported, after scheduler detects voltage fluctuation, be immediately performed virtual inertia adjusting
Control strategy calculates and voltage fluctuation is inhibited to need inertia power compensation to be offered, and distribute from the point of view of the system overall situation
To the adjustable device in system: grid-connected converter, energy-storage system, photovoltaic system, electric car.
(2) damping control: after oscillation of power occurs for power grid, also resulting in DC bus-bar voltage fluctuation, influence stable operation,
After scheduler detects oscillation of power, it is immediately performed damping control strategy, control energy storage, grid-connected converter are rapidly infused to system
Enter Damping Power, inhibits oscillation of power.
(3) power grid and local scheduling plan are tracked: when grid control centre or local touch screen have operation plan to issue
When, power grid peak load shifting is such as participated in, photovoltaic, energy storage, controllable burden and the electronic vapour of charging that can reasonably in scheduling system
Vehicle realizes the tracking of operation plan.
(4) electric car orderly charges and V2G: the kurtosis of power grid electricity price and load can be comprehensively considered, by having
Sequence charge control promotes the economy of electric car charging and participates in the friendly of power grid energy interaction.
Beneficial effects of the present invention:
The present invention is based on flexible, type communication network abundant by data acquisition module and data processing module connection at one
A entirety, the division of labor is clear, reduces the memory headroom pressure and operation pressure of each hardware, can reliably acquire real-time, quickly and is
The operation information of system, and the state of system is promptly analyzed, while can be by system mode visual representing.The communication of layering
Network not only ensure that the reliability and high efficiency of communication, but also have more flexibility.At the same time it can also realize solution direct current
The energy management functionality of various problems that may be present in distribution system ensure that efficiently managing comprehensively for direct-flow distribution system
Reason.
Detailed description of the invention
When considered in conjunction with the accompanying drawings, by referring to following detailed description, the present invention can be more completely and better understood, with
And be easy to learn many adjoint advantages, but the drawings described herein are used to provide a further understanding of the present invention,
A part of the invention is constituted, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, does not constitute to this hair
Bright improper restriction, in which:
Fig. 1 is the typical topology of direct-flow distribution system and its characteristic polymerization scheduler.
Fig. 2 is the hardware system of direct-flow distribution system characteristic polymerization scheduler.
Fig. 3 is the communication network architecture of direct-flow distribution system characteristic polymerization scheduler.
Fig. 4 is the hardware configuration of direct-flow distribution system characteristic polymerization scheduler control mainboard.
Specific embodiment
Obviously, those skilled in the art belong to guarantor of the invention based on many modifications and variations that spirit of the invention is done
Protect range.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when claiming element, group
When part is "connected" to another element, component, it can be directly connected to other elements perhaps component or there may also be in
Between element or component.Wording "and/or" used herein includes one or more associated any cells for listing item
With whole combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of the those of ordinary skill in fields.
For convenient for the understanding to embodiment, below in conjunction with being further explained explanation, and each embodiment not structure
At limitation of the invention.
Embodiment 1: shown in as shown in Figure 1, Figure 2, Fig. 3 and Fig. 4, a kind of direct-flow distribution system characteristic polymerization scheduler, including control
Mainboard 12 processed, intelligent acquisition module 10, power module 18, touch screen 21, communication switching module 22, different modules are responsible for specially
Different work is uniformly coordinated control by control mainboard 12, and the operating mode shared out the work and helped one another alleviates the pressure of control mainboard 12,
Enhance expansion capability, flexibility and the stability of scheduler.
Control mainboard 12 is the hardware core of scheduler, while being also its software operation carrier, and main task is operation
And each application program is managed, realize that the operation to direct-flow distribution system controls.It is by high-performance microprocessor 28, multichannel communication multiple telecommunication
Interface 29, multichannel general digital I/O interface GPIO30, USB interface 31, reseting module 32, RTC clock module 33, power interface
34, memory module 35 expanded etc. is constituted, and can be had the parallel ability for executing multitask with implant data library, can be held simultaneously
The multiple complicated processes of row.Wherein, the outer memory module 35 of expansion includes NANDFLUSH45 and SDRAM46, as data file
With the extension storage space of algorithm.
The communication interface 29 of control mainboard 12 enters microprocessor 28 by the signal of communication of communication switching module 22 and passes through
Communication interface, comprising: RS485/232 interface 36, CAN interface 37, Ethernet interface 38, optical fiber interface 39.Wherein, RS485/
232 interfaces 36 are expanded by 40 external low-power consumption serial data transceiver modules 41 of UART communication interface of control mainboard 12
It arrives；CAN interface 37 is obtained by 40 external expansions of CAN transceiver module 42 of UART communication interface of control mainboard 12；Ethernet
Interface 38 is RJ45 standard interface, expands 100,000,000/gigabit of an external support by the data/address bus and control line of control mainboard 12
Ethernet control chip 43 obtain；Optical fiber interface 39 expands an external height by the data/address bus and control line of control mainboard 12
Performance fiber transceiver module 44 obtains.
12 implant data library of control mainboard, database are divided into data storage area and order memory block.Data storage area storage
The operation data of direct-flow distribution system in a period of time, flow data, electrical energy changer 1, cell tube including each route
The operation data of the equipment such as reason system 9.The traffic order and led by control that the storage of order memory block is issued by grid control centre
The control command of each equipment for the direct-flow distribution system that the policing algorithm run in plate 12 generates.
As shown in Figure 1, intelligent acquisition module 10 includes: remote I/O control module 13, intelligent DC acquisition module 15, electricity
Press Hall sensor 16 and current Hall sensor 17.
Remote I/O control module 13 is responsible for the control of acquisition and the switch motion of each switch state of completion system, respectively opens
Close the auxiliary switch for referring to the dc circuit breaker on each route of system.It can have with the switch state of automatic collection line attachment
Have multichannel DI digital-quantity input interface 24 and multichannel DO relay output interface 25, to input/output signal be all made of optocoupler every
From with RS485, RS232, Ethernet multiple communication interface, support Modbus, ethernet communication protocol.Direct-flow distribution system
The auxiliary switch contact 14 of the dc circuit breaker of each route and DI input interface 24 and the DO output of remote I/O control module 13 connect
Mouth 25 is connected, and then remote I/O control module realizes the acquisition and control of switch state, then is communicatively transmitted to control master
Plate 12.
Intelligent DC acquisition module 15 is responsible for the electric quantity information on acquisition each route of direct-flow distribution system.It can be automatic
The acquisition to the voltage, electric current of line attachment is completed, there is plurality of voltages signal input interface 26 and current signal input interface
27, there is RS485, RS232, Ethernet multiple communication interface, support Modbus, ethernet communication protocol.Direct-flow distribution system
The collection process of voltage, electric current on each route is to obtain each route by voltage hall sensor 16 and current Hall sensor 17
On voltage, current signal, and be respectively connected to intelligent DC acquisition module voltage signal input interface 26 and current signal it is defeated
Incoming interface 27, intelligent DC acquisition module carry out the measuring and calculating of the electrical quantity such as voltage, electric current, power, electric energy, then communicatively
It is transmitted to control mainboard 12.
Power module 18 is made of uninterruptible power supply UPS19 and power conversion module 20.UPS19, which is exported, stablizes 220V exchange
Electricity is that remote I/O control module 13 and intelligent DC acquisition module 15 are powered, and the power supply as power conversion module 20 is defeated
Enter.Power conversion module is made of rectifying and wave-filtering, inversion, isolation transformation, current rectifying and wave filtering circuit, and 220V alternating current is converted to
12V and 24V two-way direct current electricity output, is connected with the power interface of control mainboard 12 and touch screen 21 respectively, provides stabilization for it
Direct current.
The function of touch screen 21 is operating status graphical, that digitization shows direct-flow distribution system, including DC distribution
Total topological flow state interface display of system, energy-storage system runnable interface is shown, photovoltaic system runnable interface is shown, charging pile
Runnable interface is shown, load operation interface display, operation curve interface display, historical data interface display, local runtime are dispatched
Order input interface, alarm display, user management, while having high capacity Flush, ethernet interface, RS485/232 logical
Believe interface, USB interface.
Electrical equipment in direct-flow distribution system is more, and communication mode multiplicity.
Communication switching module 22 has multichannel CAN, RS485, RS232, Ethernet, fiber optic data communication interface, by DC distribution
The signal of communication of each equipment and control mainboard 12, which condenses together, in system accesses the RS485/232 communication interface of control mainboard 12
36, CAN communication interface 37, ethernet interface 38 and fiber optic data communication interface 39.
The signal lamp 23 of scheduler includes power supply indicator, run indicator, malfunction indicator lamp, power supply indicator and failure
Indicator light is the red LED lamp of 2V power supply, and malfunction indicator lamp is the green LED lamp of 3V power supply, and the signal lamp 23 of scheduler connects
The signal lamp 23 of control mainboard 12, scheduler is controlled by the output of the general digital I/O interface GPIO of control mainboard 12.Power supply
After module 18 powers on, the long bright expression power supply of power supply indicator is normal, and when control mainboard 12 works normally, run indicator is dodged
Bright, malfunction indicator lamp works normally duration in control mainboard 12 and goes out, and failure duration is bright.
Fig. 1 is to indicate scheduler and direct-flow distribution system by taking the direct-flow distribution system of both end power supplying topology as an example
Access relation, other are such as radial, cyclic annular, multiterminal power supply topological structure is equally applicable.
Direct-flow distribution system is by electrical energy changer 1, energy-storage battery group 2, photovoltaic power generation array 3, AC load 4, direct current
Load 5, direct-current charging post 6, alternating-current charging pile 7, direct-flow distribution system characteristic polymerization scheduler 8, battery management system 9, intelligence
Acquisition module 10 and communication network 11 are constituted.
Wherein, electrical energy changer 1 includes: two-way DC/AC grid-connected converter, two-way DC/DC energy accumulation current converter, DC/DC
Photovoltaic converter, DC/DC load current transformer, DC/AC load current transformer, two-way DC/DC charging pile current transformer, two-way DC/AC fill
Electric stake current transformer.
Fig. 2 is the main hardware system of direct-flow distribution system characteristic polymerization scheduler, by control mainboard 12, remote I/O control
Molding block 13, voltage hall sensor 16, current Hall sensor 17, power module 18, touches intelligent DC acquisition module 15
Screen 21, communication switching module 22 and signal lamp 23 are constituted.
Fig. 3 is the architectures of communication networks of direct-flow distribution system characteristic polymerization scheduler, is three-decker, underlying communication network
Connect underlying devices and the communication switching moulds such as electrical energy changer 1, battery management system 9, intelligent acquisition module 10, touch screen 21
Block 22, each equipment are connected with communication transfer interface module 22 using the corresponding communications cable according to respective communication mode, can be made
Communication mode includes RS485, RS232, CAN, Ethernet, optical fiber；Middle layer passes through client cables connection communication modulus of conversion
Block 22 and control mainboard 12, wherein client cables include serial ports cable, cable, optical fiber；Upper layer connects control mainboard by optical fiber
12 and grid control centre, meet the rapidity of communication and the requirement that capacity is big.
Embodiment 2: shown in as shown in Figure 1, Figure 2, Fig. 3 and Fig. 4, a kind of direct-flow distribution system characteristic polymerization dispatching method, including
Following steps；
Step 1), data collection steps, include the following steps；
In system as shown in Figure 1, each DC/AC, DC/DC unsteady flow that scheduler includes into electrical energy changer 1
Device, battery management system 9, intelligent acquisition module 10 send request of data according to the communication protocol of each equipment by communication network,
After each equipment receives request of data, respective operation data is returned；
It is further comprising the steps of；Data communication between control mainboard 12 and grid control centre is using in scheduler active
The status information packing of system is uploaded to grid control centre at regular intervals, using Ethernet TCP/ by the mode of biography
IP agreement.Communication mode inside direct-flow distribution system is divided into two kinds, one is control mainboard 12 and uses ethernet communication
Underlying device communication when use Ethernet ICP/IP protocol, control mainboard 12 is used as TCP Client, and corresponding bottom communication sets
It is standby to be used as TCP server-side；Another kind is that control mainboard 12 and underlying device use master-slave mode when using serial ports and CAN communication,
I.e. control mainboard 12 is used as communication main station, and corresponding underlying device is as communication slave station, according to the communication protocol of each equipment by leading
It stands and issues request of data, slave station returns to corresponding data, and main website receives the response of slave station.
Wherein, electrical energy changer 1 return data include: the side DC, AC voltage, electric current, power, generated energy, electricity consumption,
Operating status etc.；The data that battery management system 9 returns include: total voltage, total voltage, general power, total SOC, monomer highest electricity
Pressure/temperature/SOC, monomer minimum voltage/temperature/SOC, operating status etc.；The data that intelligent acquisition module 10 returns include: each
Voltage, electric current, power, electric energy, switch state on route etc..
Step 2), data processing step, include the following steps；
The data frame that each equipment returns is decoded recovery by scheduler, obtains the operating status of system, will be needed
The data of preservation store the data storage area into database, update 21 data of touch screen, and related operation data is beaten in timing
Biography is wrapped, if grid control centre or touch screen 21 have dispatch command, to receive and parse through instruction, and order storage is arrived
Order memory block in database；Scheduler executes different energy management plans according to the operating status and traffic order of system
Slightly.
Step 3), order issue step, include the following steps；
If grid dispatching center is issued on perhaps touch screen 21 by dispatch command local command input or step
2) the corresponding command is sent to correspondence by the control instruction that data processing step has energy management strategies to generate underlying device, scheduler
Equipment, control instruction include: that the running status instruction of each electrical energy changer, operating mode instruction, power change instruction and each
The on-off instruction etc. of dc circuit breaker auxiliary switch on route.
Since scheduler of the invention has the ability of parallel multi-task, the above process is not that sequence recycles successively
It executes, but is carried out parallel with the execution period of very little, ensure that rapidity, real-time and the high efficiency of scheduler operation.
A kind of direct-flow distribution system characteristic polymerization dispatching method, further includes the following contents；
(1) virtual inertia controls: can provide inertia using power grid, energy-storage system, the electric car of charging, photovoltaic system
The characteristics of power is supported after scheduler detects voltage fluctuation, is immediately performed the control strategy of virtual inertia adjusting, complete from system
It from the point of view of office, calculates and voltage fluctuation is inhibited to need inertia power compensation to be offered, and that distributes in system adjustable sets
It is standby: grid-connected converter, energy-storage system, photovoltaic system, electric car.
(2) damping control: after oscillation of power occurs for power grid, also resulting in DC bus-bar voltage fluctuation, influence stable operation,
After scheduler detects oscillation of power, it is immediately performed damping control strategy, control energy storage, grid-connected converter are rapidly infused to system
Enter Damping Power, inhibits oscillation of power.
(3) power grid and local scheduling plan are tracked: when grid control centre or local touch screen have operation plan to issue
When, power grid peak load shifting is such as participated in, photovoltaic, energy storage, controllable burden and the electronic vapour of charging that can reasonably in scheduling system
Vehicle realizes the tracking of operation plan.
(4) electric car orderly charges and V2G: the kurtosis of power grid electricity price and load can be comprehensively considered, by having
Sequence charge control promotes the economy of electric car charging and participates in the friendly of power grid energy interaction.
Embodiment 3: it shown in as shown in Figure 1, Figure 2, Fig. 3 and Fig. 4, is illustrated with a direct-flow distribution system as shown in Figure 1.
A kind of direct-flow distribution system characteristic polymerization scheduler, system are sent out by electrical energy changer 1, energy-storage battery group 2, photovoltaic
Electric array 3, AC load 4, DC load 5, direct-current charging post 6, alternating-current charging pile 7, the polymerization scheduling of direct-flow distribution system characteristic
Device 8, battery management system 9, intelligent acquisition module 10 and communication network 11 are constituted.Wherein, photovoltaic installed capacity 100kW, energy storage
150kWh, the alternating-current charging pile of 3 rated power 3.5kW, the direct-current charging post of 2 rated power 30kW, DC bus-bar voltage
400V。
The main hardware system of direct-flow distribution system characteristic polymerization scheduler as shown in Figure 2 include: by control mainboard 12,
Remote I/O control module 13, intelligent DC acquisition module 15, voltage hall sensor 16, current Hall sensor 17, power supply mould
Block 18, touch screen 21, communication switching module 22 and signal lamp 23 are constituted.
Left half-court and right half-court are divided into according to two DC bus in system shown in Figure 1.Remote I/O control module 13 is left
The switch state acquisition and control of the breaker in each route are completed in each one piece of right half-court.The remote I/O control module of left half-court
Each road DI input interface 24, DO output interface 25 respectively with grid-connected route, tank circuit, photovoltaic route, AC load route
In the auxiliary contact 14 of breaker connect, each road DI input interface 24 of the remote I/O control module 13 of right half-court, DO output
Interface 25 is auxiliary with the breaker in grid-connected route, DC load route, direct-current charging post route, alternating-current charging pile route respectively
Contact 14 is helped to connect.
The left right half-court of intelligent acquisition module 15 respectively has one piece, is responsible for acquiring voltage, electric current of route of its access etc. electrically
Amount.Each road voltage interface 26 of the intelligent DC acquisition module 15 of left half-court, electric current input interface 27 respectively with grid-connected route, storage
Energy route, photovoltaic route, the voltage hall sensor 16 in AC load route and current Hall sensor 17 connect, right half-court
Each road voltage interface 26, electric current input interface 27 respectively with grid-connected route, DC load route, direct-current charging post route, hand over
Voltage hall sensor 16 and current Hall sensor 17 in current charge anchoring wire road connect.
Power module 18 is made of uninterruptible power supply UPS19 and power conversion module 20.UPS19, which is exported, stablizes 220V exchange
Electricity is that remote I/O control module 13 and intelligent DC acquisition module 15 are powered, and the power supply as power conversion module 20 is defeated
Enter.The output of power conversion module 20 has 12V and 24V two-way direct current, and respectively control mainboard 12 and touch screen 21 provides stabilization
Direct current.
The interface display of touch screen 21 includes total topological flow state interface display, the energy-storage system fortune of direct-flow distribution system
Row interface display, photovoltaic system runnable interface are shown, charging pile runnable interface is shown, load operation interface display, operation curve
Interface display, historical data interface display, local runtime traffic order input interface, alarm display.
In communication network as shown in Figure 3, control mainboard 12 is connect with grid control centre by optical fiber, control mainboard 12
It is connect between communication switching module 22 by client cables, the battery management system of energy-storage system and electric car passes through CAN
Communication line access communications interconnecting module 22, remote I/O control module 13 and intelligent DC acquisition module 15 pass through RS485 communication line
Access communications interconnecting module 22, touch screen 21 pass through RS232 communication line access communications interconnecting module 22, each transformation of electrical energy in Fig. 1
Device selects cable to access corresponding communication switching module 22 according to respective communication mode, common communication mode be usually with
Too net, RS485, RS232 communication, the selection of the above communication mode is only done for example, a variety of communication parties may be implemented in the present invention
The access of formula.
A kind of direct-flow distribution system characteristic polymerization dispatching method, includes the following steps；
Execute the communication capture program of each equipment by control mainboard 12 first, acquire it is including in electrical energy changer 1 and
Net current transformer, energy accumulation current converter, photovoltaic converter, load current transformer, charging pile current transformer, battery management system 9, on each route
Remote I/O control module 13 and intelligent DC acquisition module 15 data,
Then the data frame decoding, database purchase, data that the data processor of scheduler carries out each equipment return are beaten
It wraps and is transmitted to grid control centre, updates the display of touch screen 21, system mode analytical judgment.
If grid control centre or touch screen 21 have dispatch command, resolution scheduling instruction, and order is handed down to phase
Answer equipment.
It is analyzed by system mode and is judged with the presence or absence of problem in direct-flow distribution system, and according to the energy pipe in scheduler
Manage the control instruction of strategy generating current control period.
By taking DC bus-bar voltage fluctuates as an example, i.e., if detecting that DC bus-bar voltage fluctuation is more than a certain range, scheduling
Device obtains the inertia power of grid-connected converter, energy accumulation current converter, photovoltaic converter, charging pile current transformer from the angle of global optimization
Compensating instruction, and corresponding current transformer is handed down to as its value and power reference, complete the adjusting of voltage.
Embodiment 4: shown in as shown in Figure 1, Figure 2, Fig. 3 and Fig. 4,
A kind of direct-flow distribution system characteristic polymerization dispatching method, includes the following steps；
It is each DC/AC, DC/DC current transformer that scheduler includes into electrical energy changer 1, battery management system 9, long-range
I/O control module 13 and intelligent DC acquisition module 15, which send data according to the communication protocol of each equipment by communication network, asks
It asks；
After the data return for receiving each equipment, the data frame of return is decoded recovery, obtains direct-flow distribution system
Operating status everywhere will need data to be saved storage to be periodically packaged data into database and upload, and update touch screen
21 data.
If having dispatch command on grid control centre or touch screen 21, instruction is received and parsed through；
Different energy is executed according to the operating status and traffic order of system according to the operation data of direct-flow distribution system
Management strategy.
The corresponding command is sent to corresponding equipment by communication network by scheduler, and order includes that each line switching state is ordered
It enables, the power instruction and operating state instruction of electrical energy changer 1.
Scheduler realizes the workflow of breaker on-off control on direct-flow distribution system route the following steps are included: control
Order memory block in 12 reading database of mainboard, if it find that the order for thering is circuit breaker switch state to change, reading order, and
In a data frame by order encapsulation, remote I/O control module 13 is sent to by communication network, remote I/O control module 13 solves
The level of analysis order, corresponding DO output interface 25 changes, and then circuit-breaker status changes.
Scheduler realizes the workflow for the various current transformers control for including in electrical energy changer 1 in direct-flow distribution system
The following steps are included: the order memory block in 12 reading database of control mainboard, if it find that there is electrical energy changer work shape
The order that state changes, reading order, and in a data frame by order encapsulation, corresponding transformation of electrical energy is sent to by communication network
Device.
The communication mode that scheduler uses in the communication network in direct-flow distribution system for；
Between control mainboard 12 and grid control centre by the way of scheduler active upload, i.e., at regular intervals will
The status information packing of system is uploaded to grid control centre, using Ethernet ICP/IP protocol.Inside direct-flow distribution system
Communication mode be divided into two kinds, one is control mainboard 12 with Ethernet is used when communicate using the underlying device of ethernet communication
ICP/IP protocol, control mainboard 12 are used as TCP Client, and corresponding bottom communication equipment is as TCP server-side；Another kind is control
Mainboard 12 processed uses master-slave mode when using serial ports and CAN communication with underlying device, i.e. control mainboard 12 is used as communication main station, phase
The underlying device answered issues request of data by main website as communication slave station, according to the communication protocol of each equipment, and slave station returns corresponding
Data, main website receive the response of slave station.
As described above, embodiments of the present invention are described in detail, as long as but essentially without this hair of disengaging
Bright inventive point and effect can have many deformations, this will be readily apparent to persons skilled in the art.Therefore, this
The variation of sample is also integrally incorporated within protection scope of the present invention.
Claims (10)
1. a kind of direct-flow distribution system characteristic polymerize dispatching method, it is characterised in that the following steps are included:
Step 1), information collection step: each route, node, electrical energy changer, battery management system are transported in real time in acquisition system
Row data；
Step 2), system mode visualization step: by each route of direct-flow distribution system, each equipment operating condition with figure, song
Line, data Real time dynamic display mode show, intuitively show direct-flow distribution system operating condition；
Step 3), system mode rate-determining steps: control and the electrical energy changer of direct-flow distribution system route upper switch are realized
Working state control；The problem of judging system according to the operation data of direct-flow distribution system, and adjustment is taken immediately
Measure；Realize virtual inertia control, damping control, trace scheduling plan and the orderly charge control energy management step of electric car
Suddenly.
2. a kind of direct-flow distribution system characteristic according to claim 1 polymerize dispatching method, it is characterised in that step 1), letter
Contain following steps in breath acquisition step:
Scheduler is to each DC/AC, DC/DC current transformer, battery management system, intelligent acquisition module by communication network according to each
The communication protocol of equipment sends request of data, and after each equipment receives request of data, respective operation data is returned；
The data frame that each equipment returns is decoded recovery by scheduler, obtains the operating status of system, will need to save
Data store data storage area into database, update touch screen data, and related operation data is packaged and uploads by timing；
Data communication between control mainboard and grid control centre is by the way of scheduler active upload, i.e., when one section
Between the packing of the status information of system is uploaded to grid control centre, using Ethernet ICP/IP protocol；In direct-flow distribution system
Internal communication mode is divided into two kinds, using ether when communicating one is control mainboard with the underlying device of use ethernet communication
Net ICP/IP protocol, control mainboard is as TCP Client, and corresponding bottom communication equipment is as TCP server-side；Another kind is control
Mainboard processed and underlying device use master-slave mode when using serial ports and CAN communication, i.e., control mainboard is as communication main station, accordingly
Underlying device issues request of data by main website as communication slave station, according to the communication protocol of each equipment, and slave station returns to corresponding data,
The response of main website reception slave station.
Wherein, the data that electrical energy changer returns include: D/C voltage, DC electric current, DC power, AC voltage, AC electric current, AC function
Rate, generated energy, electricity consumption, operating status, fault message；Battery management system return data include: total voltage, total current,
General power, total SOC, monomer ceiling voltage/temperature/SOC, monomer minimum voltage/temperature/SOC, operating status, fault message；Intelligence
The data that energy acquisition module returns include: voltage, electric current, power, electric energy, switch state, fault message on each route.
3. a kind of direct-flow distribution system characteristic according to claim 1 polymerize dispatching method, it is characterised in that step 3) system
System state rate-determining steps include the following steps；
If grid control centre or touch screen have dispatch command, scheduler receives and parses through instruction, and order storage is arrived
Order memory block in database；Different energy management strategies are executed according to the operating status of system and traffic order；
Order issue step: if grid dispatching center by dispatch command issue or touch screen 21 on have local command input,
Or the corresponding command is sent to correspondence and set by the control instruction for having the energy management strategies of scheduler to generate underlying device, scheduler
Standby, control instruction includes: running status instruction, operating mode instruction, power change instruction and each line of each electrical energy changer
The on-off of road dc circuit breaker auxiliary switch instructs.
4. a kind of direct-flow distribution system characteristic polymerize dispatching method, it is characterised in that including the following contents；
(1) virtual inertia controls: can provide inertia power using power grid, energy-storage system, the electric car of charging, photovoltaic system
The characteristics of support, after scheduler detects voltage fluctuation, is immediately performed the control strategy of virtual inertia adjusting, global from system
Angle considers, calculates and voltage fluctuation is inhibited to need inertia power compensation to be offered, and distribute to the adjustable device in system: simultaneously
Net current transformer, energy-storage system, photovoltaic system, electric car；
(2) damping control: after oscillation of power occurs for power grid, DC bus-bar voltage fluctuation is also resulted in, stable operation is influenced, is dispatched
After device detects oscillation of power, it is immediately performed damping control strategy, control energy storage, grid-connected converter are rapidly injected to system and hindered
Buddhist nun's power inhibits oscillation of power；
(3) power grid and local scheduling plan are tracked: when grid control centre or local touch screen have operation plan to issue, such as
Power grid peak load shifting is participated in, photovoltaic, energy storage, controllable burden and the electric car of charging that can reasonably in scheduling system be real
The tracking of existing operation plan；
(4) electric car orderly charges and V2G: the kurtosis of power grid electricity price and load can be comprehensively considered, by orderly filling
Electric control promotes the economy of electric car charging and participates in the friendly of power grid energy interaction.
5. a kind of direct-flow distribution system characteristic polymerize scheduler, it is characterised in that: including control mainboard, intelligent acquisition module, electricity
Source module, touch screen, communication switching module and signal lamp, control mainboard are the hardware cores of scheduler, while being also its software
Operation carrier, main task are to run and manage each application program, realize that the operation to direct-flow distribution system controls；Control
Mainboard by high-performance microprocessor, Multi- channel Communication Port, multichannel general digital I/O interface GPIO, USB interface, reseting module,
RTC clock module, power interface, expansion memory module constitute, can have the parallel energy for executing multitask with implant data library
Power may be performed simultaneously multiple complicated processes；Intelligent acquisition module includes: remote I/O control module, intelligent DC acquisition mould
Block, voltage hall sensor and current Hall sensor；
Remote I/O control module is responsible for the control of acquisition and the switch motion of each switch state of completion system, and each switch refers to
The auxiliary switch of dc circuit breaker on each route of system；It is capable of the switch state of automatic collection line attachment, there is multichannel DI
Digital-quantity input interface and multichannel DO relay output interface, are all made of light-coupled isolation, DC distribution system to input/output signal
Unite each route the auxiliary switch contact of dc circuit breaker and the DI input interface of remote I/O control module and DO output interface phase
Even, and then remote I/O control module realizes the acquisition and control of switch state, then is communicatively transmitted to control mainboard；
Intelligent DC acquisition module is responsible for acquiring the electric quantity information on each route of direct-flow distribution system；Docking can be automatically performed
Enter the acquisition of the voltage, electric current of route, the collection process of voltage, electric current on each route of direct-flow distribution system is by voltage Hall
Sensor and current Hall sensor obtain voltage, current signal on each route, and are respectively connected to intelligent DC acquisition module
Voltage signal input interface and current signal input interface, intelligent DC acquisition module carry out voltage, electric current, power, electric energy
The measuring and calculating of electrical quantity, then communicatively it is transmitted to control mainboard；
Power module is made of uninterruptible power supply UPS and power conversion module；UPS, which is exported, stablizes 220V alternating current, is remote I/O
Control module and the power supply of intelligent DC acquisition module, and the power input as power conversion module；Power conversion module is by whole
Filtering, inversion, isolation transformation, current rectifying and wave filtering circuit composition are flowed, it is defeated that 220V alternating current is converted into 12V and 24V two-way direct current
Out, it is connected respectively with the power interface of control mainboard and touch screen, provides stable DC for it；
The function of touch screen is operating status graphical, that digitization shows direct-flow distribution system, including direct-flow distribution system
Total topology flow state interface display, energy-storage system runnable interface is shown, photovoltaic system runnable interface is shown, charging pile runs boundary
Face shows, load operation interface display, operation curve interface display, historical data interface display, local runtime traffic order are defeated
Enter interface, alarm display, user management, touch screen has high capacity Flush, ethernet interface, RS485/232 serial ports logical
Believe interface, USB interface；
Communication switching module has multichannel CAN, RS485, RS232, Ethernet, fiber optic data communication interface, will be in direct-flow distribution system
The signal of communication of each equipment and control mainboard, which condenses together, to be accessed RS485/232 communication interface, the CAN communication of control mainboard and connects
Mouth, ethernet interface and fiber optic data communication interface；
The outer memory module of expansion includes NANDFLUSH and SDRAM, the extension storage space as data file and algorithm.
6. a kind of direct-flow distribution system characteristic according to claim 5 polymerize scheduler, it is characterised in that: control mainboard
Communication interface is entered the communication interface that microprocessor passes through by the signal of communication of communication switching module, comprising: RS485/232 connects
Mouth, CAN interface, Ethernet interface, optical fiber interface；Wherein, RS485/232 interface is external by the UART communication interface of control mainboard
One low-power consumption serial data transceiver module is expanded to obtain；CAN interface by control mainboard the external CAN of UART communication interface
Transceiver module is expanded to obtain；Ethernet interface is RJ standard interface, is expanded by the data/address bus and control line of control mainboard external
The ethernet control chip of one 100,000,000/gigabit of support obtains；Optical fiber interface is opened up by the data/address bus and control line of control mainboard
An external high-performance optical fiber transceiver module is opened up to obtain.
7. a kind of direct-flow distribution system characteristic according to claim 5 polymerize scheduler, it is characterised in that: control mainboard is planted
Enter database, database is divided into data storage area and order memory block；Data storage area stores the DC distribution in a period of time
The operation data of system, the operation data of flow data, electrical energy changer, battery management system equipment including each route；
What the traffic order and the policing algorithm by running in control mainboard that the storage of order memory block is issued by grid control centre generated
The control command of each equipment of direct-flow distribution system.
8. a kind of direct-flow distribution system characteristic according to claim 5 polymerize scheduler, it is characterised in that: scheduler is straight
Flowing the communication network architecture in distribution system is three-decker, and underlying communication network connects electrical energy changer, battery management system
System, intelligent acquisition module, touch screen and communication switching module, each equipment use corresponding communication according to respective communication mode
Cable is connected with communication transfer interface module, and the communication mode that can be used includes RS485, RS232, CAN, Ethernet, optical fiber；It is intermediate
Layer passes through client cables connection communication conversion module and control mainboard, wherein client cables include serial ports cable, cable, optical fiber；
Upper layer connects control mainboard and grid control centre by optical fiber.
9. a kind of direct-flow distribution system characteristic according to claim 5 polymerize scheduler, it is characterised in that: the letter of scheduler
Signal lamp includes power supply indicator, run indicator, malfunction indicator lamp, and power supply indicator and malfunction indicator lamp are the red of 2V power supply
LED light, malfunction indicator lamp are the green LED lamp of 3V power supply, and the signal lamp of scheduler connects control mainboard, by control mainboard
The output of general digital I/O interface GPIO controls；After power module powers on, the long bright expression power supply of power supply indicator is normal, control
When mainboard processed works normally, run indicator flashing, malfunction indicator lamp works normally duration in control mainboard and goes out, when failure
Length is bright.
10. a kind of direct-flow distribution system characteristic according to claim 5 polymerize scheduler, it is characterised in that: intelligent DC
Acquisition module has plurality of voltages signal input interface and current signal input interface, has RS485, RS232, Ethernet a variety of
Communication interface supports Modbus, ethernet communication protocol；Remote I/O control module has RS485, RS232, Ethernet a variety of
Communication interface supports Modbus, ethernet communication protocol.
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Application publication date: 20190315 |
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