CN103124070A - Coordination control method for micro-grid system - Google Patents
Coordination control method for micro-grid system Download PDFInfo
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- CN103124070A CN103124070A CN2012105194979A CN201210519497A CN103124070A CN 103124070 A CN103124070 A CN 103124070A CN 2012105194979 A CN2012105194979 A CN 2012105194979A CN 201210519497 A CN201210519497 A CN 201210519497A CN 103124070 A CN103124070 A CN 103124070A
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- 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
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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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
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
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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
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Abstract
The invention discloses a coordination control method for a micro-grid system. The coordination control method of the micro-grid system comprises the steps of: (1) performing program initialization of a coordination control system; (2) processing a digital switching value, and carrying out information interaction with a micro-grid energy management system, a liquid crystal display module and an in-place controller; (3) processing data of obtained information; (4) judging the working condition of the micro-grid, and calling a corresponding control program module based on the type of the working condition of the micro-grid; and (5) calculating the power command value of each running device, sending a signal to each running device of the micro-grid after the safety economic index satisfying with each running device is confirmed and adjusting the running state of the system by the control program module. The coordination control method for the micro-grid system realizes coordination control on the micro-grid system, and ensures safe and steady operation of the micro-grid. By adopting the modular software design and shortening the code of each software module, the coordination control method for the micro-grid system can remove software errors to the maximum extent and therefore greatly improve reliability of the software.
Description
Technical field
The present invention relates to field of power, be specifically related to a kind of micro-grid system control method for coordinating.
Background technology
Little electrical network is a kind of small low-voltage system that jointly is comprised of distributed power generation, energy storage and load.Little electrical network internal electric source is mainly realized the conversion of electric energy take clean energy resource as main by power electronic equipment.Little electrical network is realized the balance of electric power and ener of network internal by control, can be incorporated into the power networks or independent operating, shows as single autonomous controlled cell with respect to external electrical network, can satisfy the user to the demand of the quality of power supply and power supply safety aspect.
Little electrical network can be taked to be incorporated into the power networks and from the network operation mode, and under these two kinds of operational modes, there are larger difference in operation control method and the target of little electrical network.When being incorporated into the power networks, because the population size of little electrical network is less with respect to distribution, the voltage levvl of little electrical network and rated frequency all supported by power distribution network and regulate, and each distribution of little electrical network inside power supply that declines only needs the output of power ratio control stream.During islet operation, little electrical network is connected disconnection with distribution, owing to adopting a large amount of power electronic equipments as interface, the little or noninertia of its system inertia, overload capacity is poor and adopt the intermittence of distributed power source output electric energy of renewable energy power generation and the polytropy of bearing power to increase little mains frequency and voltage-controlled difficulty.And the low-voltage network circuit is resistive, make voltage not only relevant with reactive power, also relevant with active power, little electrical network this moment inside will keep the rated value of voltage and frequency, just need to formulate reliable suitable micro electric network coordination control strategy, to guarantee the normal operation of little electrical network under island mode.
Under little electrical network normal operating condition, only rely on the Generation Control of distributed power source self can keep the basic operation of little electrical network, but little electrical network under many circumstances, may be in urgent, recover, switch the states such as transition, neutrality, this just need to be with the ruuning situation of the overall situation, prior information analysis system, and the various situations that occur in coherent system.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of micro-grid system control method for coordinating, realize the coordination of micro-grid system is controlled, guarantee little power grid security, stable operation.
A kind of micro-grid system control method for coordinating provided by the invention, its improvements be, described method comprises the steps:
(1) coordinated control system program initialization;
(2) process digital switch quantity, and carry out information interaction with microgrid energy management system, LCD MODULE, Local Controller;
(3) process the data of the information that obtains;
(4) differentiate little electrical network operating mode, and call corresponding control program module according to little electrical network operating mode classification;
(5) described control program module is calculated the power command value of each operational outfit, and after confirming to satisfy the safety and economic benefit index of each operational outfit, lower signalling is to each operational outfit of little electrical network, the running status of adjustment System.
Wherein, the described coordinated control system program initialization of step (1) comprises the initial operating mode of initializing variable and the little electrical network of judgement.
Wherein, described variable comprises little electrical network member formation, little electrical network member condition (information such as little electrical network member's three-phase voltage, three-phase current, frequency, active power, reactive power, mode of operation, alarm, fault), system control parameters and system's control command etc.
Wherein, when described coordinated control system is carried out TCM, its program is divided into Cyclic# 1 task layer, Cyclic# 2 task layer, Cyclic# 3 task layer, Cyclic# 4 task layer and Cyclic# 5 task layer from high to low successively according to priority, the equal alone cycle operation of each task;
Described Cyclic# 1 task layer is used for completing to the acquisition process of outside digital switch quantity input and task is exported in the control of digital switch quantity;
Described Cyclic# 2 task layer is used for completing the coordination control task of the little electrical network work condition state of judgement and each work condition state;
Described Cyclic# 3 task layer is used for completing the data processing task of interactive information;
Described Cyclic# 4 task layer is used for completing the information interaction task of described coordinated control system, microgrid energy management system and liquid crystal display mode interblock;
Described Cyclic# 5 task layer is used for completing the information interaction task between described coordinated control system and local controller.
Wherein, be set to 5ms the circulation timei of described Cyclic# 1 task layer;
Be set to 10ms the circulation timei of described Cyclic# 2 task layer;
Be set to 20ms the circulation timei of described Cyclic# 3 task layer;
Be set to 50ms the circulation timei of described Cyclic# 4 task layer;
Be set to 100ms the circulation timei of described Cyclic# 5 task layer.
Wherein, the mutual information of step (2) comprises described coordinated control system respectively and the information between microgrid energy management system, LCD MODULE and local controller.
Wherein, described local controller comprises photovoltaic DC-to-AC converter, blower fan inverter and energy storage PCS.
Wherein, described little electrical network operating mode classification comprise inactive state, open state and net state, from net state and stopped status.
Wherein, when described system condition was inactive state, described control program module detected whether micro-grid system is current satisfies compressor start up condition, carries out boot program after confirming;
Described system condition is and during net state, described control program module is carried out Grid-connected Control Strategy, controls active power, the reactive power of distributed power generation unit, satisfies system call and energy-optimised requirement;
Described system condition is during from net state, and described control program module is carried out from network control strategy processed, be responsible for coordinating each equipment meritorious/idle exerting oneself, stablize voltage and frequency on little electrical network bus, keep the basic operation of little electrical network;
When described system condition was stopped status, described each Local Controller of control program module arrangement moved in order, completed smoothly stopped status and switched;
When described system condition was open state, described each Local Controller of control program module arrangement moved in order, completed smoothly open state and switched.
Compared with the prior art, beneficial effect of the present invention is:
The present invention can make micro electric network coordination control system be applied in the micro-grid system of different capabilities, configuration, structure, can to little electrical network carry out data acquisition, data processing, status monitoring analysis, operation control, also/from the net switching controls etc., be to connect the maincenter link of equipment on the spot such as microgrid energy management system (MEMS) and little electric network source, energy storage, load etc.
The present invention realizes the coordination of micro-grid system is controlled, and guarantees little power grid security, stable operation.
Coordinated control system of the present invention adopts the PCC Hardware platform design, functional module adopts the plug-in structure, be easy to expansion, adopt actual scale, capacity and the structure of the micro-grid system that the coordinated control system of this patent design can basis, type and the quantity of module are carried out flexible configuration.
PCC of the present invention has the operating system of TCM, makes application task cycle period and program length irrelevant.Press the TCM operation mechanism, whole micro-grid system can be coordinated control and be divided into the task grade that several have different priority, the different task grade has the different scan round cycles, has satisfied real requirement of real-time control.
The present invention takes the modular software design, shortens the code of each software module, can get rid of to greatest extent software error like this, thereby greatly improve reliability of software.
Software portability of the present invention is high.Micro electric network coordination is controlled software and is adopted the standard C language design, can easily be transplanted to other hardware platforms.
Description of drawings
Fig. 1 is typical 400V micro-grid system structure chart.
Fig. 2 is micro electric network coordination control program task distribution diagram provided by the invention
Fig. 3 is controlling run process schematic diagram provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The diversity of little topological structure of electric, the diversity of operational mode (comprising from net and the steady operation mode that is incorporated into the power networks and two kinds of transient state transient process that operational mode is switched), the randomness of the generated output of renewable energy sources such as the inner photovoltaic of little electrical network, wind-powered electricity generation, and the control mode of miscellaneous little power supply is different, operation characteristic differs, and makes micro electric network coordination control and has higher complexity.Micro electric network coordination control system is as the core control equipment of micro-grid system, to little electrical network carry out data acquisition, data processing, status monitoring analysis, operation control, also/from the net switching controls etc.; Microgrid energy management system (MEMS) is obtained little operation of power networks data by coordinated control system simultaneously, and send operation energy dispatch command to coordinated control system, instruction is decomposed by coordinated control system again, and is handed down to the equipment execution on the spot such as little electric network source, energy storage, load.
Figure 1 shows that a little configuration of power network of typical 400V low-voltage bus bar, different little electrical networks, capacity, configuration and structure are slightly different, and this specification launches to describe according to Fig. 1.Little electrical network partly is comprised of distributed power generation unit, energy-storage system, the switch of loading, be incorporated into the power networks, micro electric network coordination control system, microgrid energy management system etc.The distributed power generation unit typically refer to generated output at several kilowatts the small modular generator units to hundreds of megawatts, in China mainly take photovoltaic generation and wind power generation as main; Energy storage device is mainly realized storage, release or the fast power exchange of energy; The micro-grid system operation information that send on microgrid energy management system collection analysis micro electric network coordination control system is assessed current little operation of power networks state, calculates by optimization and forms the integrated operation control command, is handed down to micro electric network coordination control system.
The present invention is a kind of based on PCC(Programmable Computer Controller) micro electric network coordination control system of (programmable computer controller) hardware platform.Micro electric network coordination control system reads the integrated operation control task that the microgrid energy management system issues on time, resolve into each instruction of equipment on the spot by calculating, assign to each on the spot device controller (comprising load governor, distributed power generation cell controller, energy storage controller etc.) carry out, realize being incorporated into the power networks, off-grid stable operation and also/switch from the net pattern.Wherein the instruction that micro electric network coordination control system is assigned is accepted and carried out to load governor, drops into/the excision load; Simultaneously load operation information is delivered to coordinated control system in real time, formulate the operation control strategy for it reference is provided.The distributed power generation cell controller is accepted the instruction that coordinated control system issues, and adjusts its also control signal of network interface, and transition distributions formula generator unit operational mode and the size of exerting oneself satisfy little electrical network real time execution needs; Simultaneously distributed power generation unit service data is delivered to micro electric network coordination control system on time.The energy storage controller is carried out micro electric network coordination control system and is assigned the instruction curve, discharges and recharges operation, plays and stablizes distributed power generation output, participates in the effect of system's peak load shifting; Send energy storage device real time execution information to coordinated control system simultaneously.After coordinated control system receives and to control on the spot the real time execution information of sending, on deliver to the microgrid energy management system.
Micro electric network coordination control system adopts the PCC Hardware platform design.PCC is mainly used in the industrial process control field, adopts the standard modular design, and Module Reliability is high, expansion is flexible, can support various fieldbus, and a large amount of definable I/O interfaces can be provided.Particular hardware configuration comprises standard C PU processing module, HUB communication module, serial communication modular, digital quantity input/output module and LCD MODULE, can also be according to demand, and apolegamy analog input and output module, power model etc.Because PCC platform feature module adopts the plug-in structure, be easy to expansion, actual scale, capacity and the structure of the micro-grid system that this coordinated control system can basis are carried out flexible configuration to type and the quantity of module.
The CPU module is the core of whole equipment, the whole coordination control program of operation in module, need carry out analyzing and processing to the information of HUB communication module, serial communication modular, digital module input within a short period of time, the running status of real-time judge micro-grid system, determine next step operational plan of system, and issue control command by serial communication modular and digital output module etc.Occur as monitoring alarm and fault in program process, send corresponding alarm and fault-signal.The CPU processing module of PCC, cycle period is short, and can process mass data and floating-point operation.
The HUB communication module is used for the Ethernet ports-Extending, is convenient to ethernet communication between the equipment such as coordinated control system and microgrid energy management system.Coordinated control system reads the Comprehensive Control order of microgrid energy management system by Ethernet interface, and on send little electrical network real-time running data;
Serial communication modular is used for coordinated control system and serial line interface (Serial Interface) device talk.Serial mode is adopted in the Local Controller communications such as photovoltaic DC-to-AC converter, blower fan inverter, energy storage PCS more, coordinated control system reads the state information of Local Controller by serial communication modular, and will calculate formation integrated operation control command by optimization and assign each Local Controller.The communication mode that Local Controller adopts generally comprises Ethernet, serial ports, optical fiber etc., and coordinated control system can select the communication module of difference in functionality to read the state information of little electrical network Local Controller, and assigns the control command of each Local Controller.
Digital quantity input module be used for to gather local control switch and the switch that is incorporated into the power networks minute/"on" position signal, startup-shutdown command signal, little electrical network also/from network control signal processed etc., and the signal that gathers is inputted the CPU module; The digital output module receive the local control switch that the CPU module sends, the switch that is incorporated into the power networks minute/combined floodgate control command and warning, fault-signal, and convert that digital signal outputs to local control switch, switch and little electric network fault alarm equipment are incorporated into the power networks to.
LCD MODULE is obtained little electric network information by the HUB communication module from coordinated control system.LCD MODULE provides the man-machine interface of abundant and hommization, and picture shows operating state and the related data information of each equipment in micro-grid system by configuration mode.LCD MODULE adopts touch control, can issue little power grid control instruction or control parameter to coordinated control system by the HUB module.
Based on this, the control function that the present embodiment is programmed and realized micro electric network coordination control system by the C language at the PCC hardware platform.
According to reliability and modular design principle, the control method flow chart of coordinated control system as shown in Figure 3, after system's electrifying startup, it comprises the steps:
(1) coordinated control system program initialization;
(2) process digital switch quantity, and carry out information interaction with Local Controllers such as photovoltaic DC-to-AC converter, blower fan inverters;
(3) process the data of the information that obtains;
(4) differentiate little electrical network operating mode, and call corresponding control program module according to little electrical network operating mode classification;
(5) described control program module is calculated the power command value of each operational outfit, and after confirming to satisfy the safety and economic benefit index of each operational outfit, lower signalling is to each operational outfit of little electrical network, the running status of adjustment System.
PCC adopts the operating system of TCM, and TCM refers to that the time of CPU is divided into the essentially identical time interval of length, i.e. " timeslice " by the management of operating system, distributed to each task to these timeslices alternately successively and used.The TCM operating mechanism, make application task cycle period and program length irrelevant, the application scan cycle is come with real external control cycle difference, satisfied real requirement of real-time control, this control cycle is can be under the CPU operational capability allows prerequisite, user's actual requirement and do respective settings.
TCM operating system can be controlled whole system and be divided into the task grade that several have different priority, and the different task grade has the different scan round cycles.The function of micro electric network coordination control system mainly contains: 1. judge the work condition state of micro-grid system, and carry out the corresponding control program of coordinating.2. realize the information interaction between coordinated control system and microgrid energy management system, LCD MODULE; 3. realize the information interaction between the Local Controllers such as coordinated control system and photovoltaic DC-to-AC converter, blower fan inverter, energy storage PCS; 4. realize the data processing task to communication interaction information; 5. realize that the digital switch quantity input gathers, and the output of digital switch quantity is controlled.
The operating mode of little electrical network comprises conversion transient state and operation stable state, and wherein, conversion transient state is the intermediate state as the conversion between the operation stable state, start is arranged, shut down two kinds; The operation stable state is incorporated into the power networks, from net, and static three kinds.When little electrical network remains static, when receiving start-up command, detect whether micro-grid system is current satisfies compressor start up condition, carry out boot program after confirming.When little electrical network is under the state of being incorporated into the power networks, coordinated control system is carried out corresponding Grid-connected Control Strategy according to external command, control meritorious, idle the exerting oneself of distributed power generation unit, satisfy system call and energy-optimised requirement, simultaneity factor is real-time detected state switching condition also, as satisfy the state switching condition, enter next operating mode; When little electrical network is under Running State, coordinated control system is carried out from network control strategy processed, be responsible for coordinating each equipment meritorious/idle exerting oneself, stablize voltage and frequency on little electrical network bus, keep the basic operation of little electrical network, same, system is real-time detected state switching condition also; When little electrical network is in conversion transient state (start, shutdown); coordinated control system arranges Local Controller to move in order, and the completion system state switches smoothly, satisfies other switching condition as detecting in handoff procedure; stop current action, enter next operating mode operation.The action that coordinated control system is carried out when various operating mode is as shown in table 1.
The action that table 1 coordinated control system is carried out
In conjunction with the TCM operating system of PCC and to micro electric network coordination control system adjustment process and the analysis of controlling function, system control program is divided into five task grades.Cyclic# 1, Cyclic# 2, Cyclic# 3, Cyclic# 4, Cyclic# 5 are five task layers, are set to respectively 5ms, 10ms, 20ms, 50ms, 100ms circulation timei.The Cyclic# 1 task layer is mainly completed the acquisition process to outside digital switch quantity input, and completes digital switch quantity and control output; The Cyclic# 2 task layer is mainly completed the coordination control task of little electrical network work condition state differentiation and each work condition state; The Cyclic# 3 task layer is mainly the data processing task of completing communication interaction information; The Cyclic# 4 task layer is mainly to complete the task of carrying out information interaction between coordinated control system and microgrid energy management system, LCD MODULE; The Cyclic# 5 task layer is mainly the information interaction task of completing between the Local Controllers such as coordinated control system and photovoltaic DC-to-AC converter, blower fan inverter, energy storage PCS.Concrete program task distributes as shown in Figure 2.
For guaranteeing the control reliability of micro electric network coordination control system, also require the software of design to have high reliability.Take the modular software design, shorten the code of each software module, can get rid of to greatest extent software error like this, thereby greatly improve reliability of software.The operating system that has TCM due to PCC can arrange a plurality of different tasks below a task layer, so can realize the principle of modularization establishment, the functional module different according to different control function weavings in the compilation process of software.Be conducive in debug process, program code be checked so on the one hand, improve reliability of software; When needing to expand new control function, only need to increase new functional module and get final product on the other hand.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment, the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (9)
1. a micro-grid system control method for coordinating, is characterized in that, described method comprises the steps:
(1) coordinated control system program initialization;
(2) process digital switch quantity, and carry out information interaction with microgrid energy management system, LCD MODULE, Local Controller;
(3) process the data of the information that obtains;
(4) differentiate little electrical network operating mode, and call corresponding control program module according to little electrical network operating mode classification;
(5) described control program module is calculated the power command value of each operational outfit, and after confirming to satisfy the safety and economic benefit index of each operational outfit, lower signalling is to each operational outfit of little electrical network, the running status of adjustment System.
2. control method for coordinating as claimed in claim 1, is characterized in that, the described coordinated control system program initialization of step (1) comprises the initial operating mode of initializing variable and the little electrical network of judgement.
3. control method for coordinating as claimed in claim 2, is characterized in that, described variable comprises little electrical network member formation, little electrical network member condition, system control parameters and system's control command.
4. control method for coordinating as claimed in claim 1, it is characterized in that, the program of described coordinated control system is divided into Cyclic#1 task layer, Cyclic#2 task layer, Cyclic#3 task layer, Cyclic#4 task layer and Cyclic#5 task layer from high to low successively according to priority, the equal alone cycle operation of each task;
Described Cyclic#1 task layer is used for completing to the acquisition process of outside digital switch quantity input and task is exported in the control of digital switch quantity;
Described Cyclic#2 task layer is used for completing the coordination control task of the little electrical network work condition state of judgement and each work condition state;
Described Cyclic#3 task layer is used for completing the data processing task of interactive information;
Described Cyclic#4 task layer is used for completing the information interaction task of described coordinated control system, microgrid energy management system and liquid crystal display mode interblock;
Described Cyclic#5 task layer is used for completing the information interaction task between described coordinated control system and local controller.
5. control method for coordinating as claimed in claim 4, is characterized in that, is set to 5ms the circulation timei of described Cyclic#1 task layer;
Be set to 10ms the circulation timei of described Cyclic#2 task layer;
Be set to 20ms the circulation timei of described Cyclic#3 task layer;
Be set to 50ms the circulation timei of described Cyclic#4 task layer;
Be set to 100ms the circulation timei of described Cyclic#5 task layer.
6. control method for coordinating as claimed in claim 1, is characterized in that, the mutual information of step (2) comprises described coordinated control system respectively and the information between microgrid energy management system, LCD MODULE and local controller.
7. control method for coordinating as described in claim 4 or 6, is characterized in that, described local controller comprises photovoltaic DC-to-AC converter, blower fan inverter and energy storage PCS.
8. control method for coordinating as claimed in claim 1, is characterized in that, described little electrical network operating mode classification comprises inactive state, open state and net state, from net state and stopped status.
9. control method for coordinating as claimed in claim 8, is characterized in that,
When described system condition was inactive state, described control program module detected whether micro-grid system is current satisfies compressor start up condition, carries out boot program after confirming;
Described system condition is and during net state, described control program module is carried out Grid-connected Control Strategy, controls active power, the reactive power of distributed power generation unit, satisfies system call and energy-optimised requirement;
Described system condition is during from net state, and described control program module is carried out from network control strategy processed, be responsible for coordinating each equipment meritorious/idle exerting oneself, stablize voltage and frequency on little electrical network bus, keep the basic operation of little electrical network;
When described system condition was stopped status, described each Local Controller of control program module arrangement moved in order, completed smoothly stopped status and switched;
When described system condition was open state, described each Local Controller of control program module arrangement moved in order, completed smoothly open state and switched.
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| CN108632106A (en) * | 2017-03-22 | 2018-10-09 | 广达电脑股份有限公司 | System for monitoring service equipment |
| CN109066785A (en) * | 2018-08-23 | 2018-12-21 | 上海电气分布式能源科技有限公司 | A kind of micro-capacitance sensor real-time control method and micro-capacitance sensor |
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| WO2021003006A1 (en) * | 2019-07-03 | 2021-01-07 | Neworld.Energy Llc | Grid-tied electric meter adapter and systems for automated power resilience and on-demand grid balancing |
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