CN104993513A - Method and system for controlling battery energy storage power station of supporting black start of light-preserved power generation system - Google Patents
Method and system for controlling battery energy storage power station of supporting black start of light-preserved power generation system Download PDFInfo
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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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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Abstract
The invention provides a method and a system for controlling a battery energy storage power station of supporting black start of a light-preserved power generation system. The method comprises steps of obtaining power station data including power grid operation states, load types, photovoltaic output values, load power values and energy storage current transformer charged states; determining whether or not a power grid has a fault according to the power grid operation state; when the power grid has a fault, calculating the number of energy storage current transformers for charge-discharge power distribution according to the photovoltaic output values and load power values and using the current transformer power optimization principle; and establishing a light-preserved combined power generation output optimal objective function, and determining the power of each energy storage current transformer for charge-discharge power distribution according to the load power values, the photovoltaic output values and the charged states of the energy storage current transformers for charge-discharge power distribution. The invention achieves black start of a power grid through a battery energy storage system combined with a photovoltaic electric field when the power grid has a fault, and achieves control of stable operation of the power grid.
Description
Technical field
The invention belongs to intelligent grid and technical field of energy storage, be specifically related in intelligent grid, a kind of battery energy storage power station control method and system of storing up electricity generation system black starting-up for supporting light.
Background technology
Along with the scale of the trans-regional interconnected network of electric power system is increasing; influencing each other between each subsystem is more and more stronger; the fault of local system may lead to large-area power outage due to the incorrect operation of protection and automatics; the collapse of even whole electric power system is disintegrated, and brings huge loss to national economy.
Black starting-up refers to that whole network system is because of after fault stoppage in transit, not relying on other web help, by having the startup of self-startup ability also referred to as the unit of black start-up ability in system, driving the unit of non self starting, expand system power transmission range gradually, finally realize the recovery of whole system.The mode of different power system recoveries is not quite similar, but total target is the ability enabling system recover on-load within the shortest time.
After black-start scheme refers to that electric power system has an accident, recover or reconstruct a kind of scheme of new stable operation mode as early as possible in an orderly manner.Generally have three requirements to it, one is that speed wants fast; Two is to recover or the process that reconstructs new operational mode must be orderly; Three is new operational modes must be a stable mode.Current black-start scheme is according to above-mentioned black starting-up technical specification, and partition sub-system, from black starting-up power supply, along black starting-up path, start to carry out related electric calculating, start the corresponding load of other power supplys, transformer station and recovery, progressively recovery subsystem runs.Internal black can be utilized to start power supply for subsystems and black starting-up is carried out with startup power supply in outside.
Summary of the invention
At present, the control about the black starting-up of wind-solar-storage joint electricity generation system does not also have Patents, particularly the optimal control method of the battery energy storage power station of black starting-up.
In order to solve the problem, the embodiment of the present invention provides a kind of battery energy storage power station control method for supporting light storage electricity generation system black starting-up, comprising: obtain comprise operation of power networks state, power station data that load type, photovoltaic go out force value, load power value, energy accumulation current converter state-of-charge; According to described operation of power networks state, judge whether electrical network breaks down; When described grid collapses, go out force value and load power value according to described photovoltaic, utilize energy accumulation current converter efficiency optimization principle, calculate the number of units participating in the energy accumulation current converter that charge-discharge electric power distributes; Set up light storing cogeneration to exert oneself optimal objective function, go out force value according to described load power value, photovoltaic and participate in the state-of-charge of the energy accumulation current converter that charge-discharge electric power distributes, determine the power of each energy accumulation current converter that described participation charge-discharge electric power distributes.
In order to solve the problem, the embodiment of the present invention additionally provides a kind of battery energy storage power station control system for supporting light storage electricity generation system black starting-up, comprising: power station data acquisition device, comprising operation of power networks state for obtaining, power station data that load type, photovoltaic go out force value, load power value, energy accumulation current converter state-of-charge; Failure judgment device, for according to described operation of power networks state, judges whether electrical network breaks down; Run number of units calculation element, for when described grid collapses, go out force value and load power value according to described photovoltaic, utilize energy accumulation current converter efficiency optimization principle, calculate the number of units participating in the energy accumulation current converter that charge-discharge electric power distributes; Power division calculation element, to exert oneself optimal objective function for setting up light storing cogeneration, go out force value according to described load power value, photovoltaic and participate in the state-of-charge of the energy accumulation current converter that charge-discharge electric power distributes, determine the power of each energy accumulation current converter that described participation charge-discharge electric power distributes.
The battery energy storage power station control method of the support light storage electricity generation system black starting-up of the embodiment of the present invention and system, achieve when electric network fault, realized the process of power grid"black-start" by battery energy storage system associating photovoltaic DC field, and the control to power grid operation can be realized.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the battery energy storage power station control method of the support light storage electricity generation system black starting-up of the embodiment of the present invention;
The structural representation of the wind-solar-storage joint electricity generation system of Fig. 2 embodiment of the present invention;
Fig. 3 is the schematic diagram of exerting oneself of the photovoltaic generating system of the embodiment of the present invention;
Fig. 4 is the energy storage service efficiency optimal curve figure of the embodiment of the present invention;
Fig. 5 is the structural representation of the battery energy storage power station control system of the support light storage electricity generation system black starting-up of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the flow chart of the battery energy storage power station control method of the support light storage electricity generation system black starting-up of the embodiment of the present invention.As shown in Figure 1, the control method of the embodiment of the present invention comprises: step S101, obtain comprise operation of power networks state, power station data that load type, photovoltaic go out force value, load power value, energy accumulation current converter state-of-charge; Step S102, according to described operation of power networks state, judges whether electrical network breaks down; Step S103, when described grid collapses, goes out force value and load power value according to described photovoltaic, utilizes energy accumulation current converter efficiency optimization principle, calculates the number of units participating in the energy accumulation current converter that charge-discharge electric power distributes; Step S104, set up light storing cogeneration to exert oneself optimal objective function, go out force value according to described load power value, photovoltaic and participate in the state-of-charge of the energy accumulation current converter that charge-discharge electric power distributes, determine the power of each energy accumulation current converter that described participation charge-discharge electric power distributes.
Fig. 2 is the structural representation of the wind-solar-storage joint electricity generation system of the embodiment of the present invention.As shown in Figure 2, wind-solar-storage joint electricity generation system comprises wind power plant, photovoltaic generation field, battery energy storage power station, load and electrical network; Wind power plant, photovoltaic generation field and battery energy storage power station are connected with electrical network respectively by transformer.The inside connection diagram of wind power plant and photovoltaic generation field is omitted at this; Each lithium ion battery energy storage subelement in battery energy storage power station is connected with two way convertor.For different load type, load is divided into critical load and general load by the present invention.Critical load is called important load, when this kind of device or equipment can not normally run, will injure personal safety, and/or cause function reduction, economic loss, or is thought can cause great loss to its property, such as motor etc. by user.General load is when this kind of device and equipment can not normally run, and can not injure personal safety, economic loss, such as illumination etc.Critical load and the total performance number needed for general load, be called load power value.
Fig. 3 is the schematic diagram of exerting oneself of photovoltaic generating system, and namely simulate photovoltaic power, it is made up of a photovoltaic DC-to-AC converter.
Energy accumulation current converter state-of-charge SOC refers to the ratio of the capacity of residual capacity and its fully charged state, represents with percentage, and span is 0 ~ 1, represents energy accumulation current converter electric discharge completely, represent that energy accumulation current converter is full of completely as SOC=1 as SOC=0.
In step s 102, operation of power networks state is divided into normal and fault two kinds.When external electrical network is working properly, namely under steady state conditions, light storage micro-grid connection is run, and now energy-storage system coordinates photovoltaic system to provide the electric energy of the high quality of power supply for power distribution network and load, and light storing cogeneration is normally grid-connected, meets burden requirement.
In step s 103, when the grid collapses, energy storage and photovoltaic stop exerting oneself, and when carrying out black starting-up, energy accumulation current converter drives critical load to power, and starts grid-connected, power simultaneously to energy-storage battery by platform photovoltaic DC-to-AC converter.In embodiments of the present invention, when detecting that the frequency and voltage of power distribution network or PCC point is out-of-limit, disconnect PCC switch, be islet operation pattern by control mode switch, carry out black starting-up, under island mode, wherein an energy accumulation current converter switches to V/f to control (voltage/slop control), for micro-grid system provides the voltage source of voltage magnitude and frequency-invariant, ensure that the stable operation of light storage micro-grid system, other energy accumulation current converters adopt P/Q to control (i.e. meritorious/Reactive Power Control), P/Q controls to be by photovoltaic and energy storage for power supply, for combined generating system provides stable current source, and consider the efficiency of energy storage device, the energy accumulation current converter cluster of optimum combination is selected to participate in black starting-up, the black starting-up that effectively improve light storing cogeneration system controls and islet operation ability.Bulk power grid break down or occur comparatively large disturbances time, sensitiveness load place feeder line and bulk power grid disconnect by static switch, make it run under island mode.
Utilize energy accumulation current converter efficiency optimization principle, calculate the number of units participating in the energy accumulation current converter that charge-discharge electric power distributes, be specially: reading load power value and photovoltaic go out force value, load power value is deducted photovoltaic and goes out force value, the requirements of lower energy storage power is controlled as P/Q, between the efficiency area according to described energy storage power demand values and default every platform energy accumulation current converter, determine the number of units of the energy accumulation current converter participating in power division.Specifically refer to:
Peak power value P between the efficiency area of getting L platform energy accumulation current converter
max; Described energy storage power demand values P
0value is: (N-1) * P
max≤ P
0≤ N*P
max, N≤L; Then determine that the number of units of energy accumulation current converter participating in power division is N platform.Valid interval refers to the service efficiency schematic diagram of the energy accumulation current converter shown in Fig. 4, and when energy accumulation current converter power is in the rated power interval of 10% and 90%, the service efficiency of energy accumulation current converter is in higher range.
Such as, be (10KW, 90KW) between the efficiency area of 3 energy accumulation current converters, if energy storage power demand values P
0for 150KW, due to every platform energy accumulation current converter efficiency area between peak power value P
maxfor 90KW, then according to (N-1) * P
max≤ P
0≤ N*P
max, can determine that the number of units of the energy accumulation current converter participating in power division is 2, namely have one not need work.
Step S104, set up light storing cogeneration to exert oneself optimal objective function, go out force value according to described load power value, photovoltaic and participate in the state-of-charge of the energy accumulation current converter that charge-discharge electric power distributes, determine the power of each energy accumulation current converter that described participation charge-discharge electric power distributes.Be implemented as:
First, setting up light storing cogeneration optimal objective function of exerting oneself is:
min{ΔP}＝{P
pv+P
bess-P
load}→0
Wherein P
loadand P
bessobtained by following formula respectively:
P
load＝P
load1+P
load2+P
load3+…+P
loadk；
P
bess＝P
pcs1+P
pcs2+P
pcs3+…P
pcsL；
P
pv＝P
pv1+P
pv2+P
pv3+…P
pvm。
In above-mentioned formula, P
loadfor load power, P
load1can be critical load, P
load2, P
load3..P
loadkit can be general load; P
pvfor the photovoltaic generation gross capability be made up of m platform photovoltaic DC-to-AC converter; P
bessbe the energy storage gross power be made up of L platform energy accumulation current converter, wherein one is voltage source energy accumulation current converter, and other are current source energy accumulation current converter.
Secondly, the energy accumulation current converter power participating in this power division is determined:
When battery energy storage power station overall power requirement is greater than 0, represent that energy storage needs electric discharge, the power value of each energy accumulation current converter is:
Wherein, P
pcsifor each energy accumulation current converter performance number generated; SOC
ifor the state-of-charge of each energy accumulation current converter; u
ifor the running status of each energy accumulation current converter; P
bessfor described L platform energy accumulation current converter gross power;
When battery energy storage power station overall power requirement is less than 0, represent that energy storage needs charging, the power value of each energy accumulation current converter is:
Wherein, P
pcsifor each energy accumulation current converter performance number generated; SOD
ifor the state-of-charge of each energy accumulation current converter; u
ifor the running status of each energy accumulation current converter; P
bessfor described L platform energy accumulation current converter gross power;
And, SOD
i=1-SOC
i;
Wherein, the constraints of described SOC is: SOC_min≤SOC
i≤ SOC_max.
When energy-storage battery power station overall power requirement is greater than 0, described out-of-limit condition is;
P
pcsi>P
pcsimaximum permission electric discharge
When energy-storage battery power station overall power requirement is greater than 0, described out-of-limit condition is;
| P
pcsi| >|P
pcsimaximum permission charging |.
Whether the power value based on each energy accumulation current converter of above-mentioned out-of-limit condition judgment has the situation violating the restriction of its maximum allowable power, if had, then recalculates the performance number of each energy accumulation current converter participating in this power division.
Corresponding and above-mentioned control method, as shown in Figure 5, the embodiment of the present invention also provides a kind of battery energy storage power station control system for supporting light storage electricity generation system black starting-up, comprising: power station data acquisition device 101, comprising operation of power networks state for obtaining, power station data that load type, photovoltaic go out force value, load power value, energy accumulation current converter state-of-charge; Failure judgment device 102, for according to described operation of power networks state, judges whether electrical network breaks down; Run number of units calculation element 103, for when described grid collapses, go out force value and load power value according to described photovoltaic, utilize energy accumulation current converter efficiency optimization principle, calculate the number of units participating in the energy accumulation current converter that charge-discharge electric power distributes; Power division calculation element 104, to exert oneself optimal objective function for setting up light storing cogeneration, go out force value according to described load power value, photovoltaic and participate in the state-of-charge of the energy accumulation current converter that charge-discharge electric power distributes, determine the power of each energy accumulation current converter that described participation charge-discharge electric power distributes.
The battery energy storage power station control method of the support light storage electricity generation system black starting-up of the embodiment of the present invention and system, achieve when electric network fault, realized the process of power grid"black-start" by battery energy storage system associating photovoltaic DC field, and the control to power grid operation can be realized.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Apply specific embodiment in the present invention to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1., for supporting a battery energy storage power station control method for light storage electricity generation system black starting-up, it is characterized in that, described method comprises:
Obtain comprise operation of power networks state, power station data that load type, photovoltaic go out force value, load power value, energy accumulation current converter state-of-charge;
According to described operation of power networks state, judge whether electrical network breaks down;
When described grid collapses, go out force value and load power value according to described photovoltaic, utilize energy accumulation current converter efficiency optimization principle, calculate the number of units participating in the energy accumulation current converter that charge-discharge electric power distributes;
Set up light storing cogeneration to exert oneself optimal objective function, go out force value according to described load power value, photovoltaic and participate in the state-of-charge of the energy accumulation current converter that charge-discharge electric power distributes, determine the power of each energy accumulation current converter that described participation charge-discharge electric power distributes.
2. the battery energy storage power station control method for supporting light storage electricity generation system black starting-up according to claim 1, it is characterized in that, described when described grid collapses, force value and load power value is gone out according to described photovoltaic, utilize energy accumulation current converter efficiency optimization principle, calculate the number of units participating in the energy accumulation current converter that charge-discharge electric power distributes, comprising:
When described grid collapses, switch to islet operation pattern, energy accumulation current converter is divided into voltage source energy accumulation current converter and current source energy accumulation current converter;
Go out force value according to described load power value and photovoltaic, generate energy storage power demand values;
Between the efficiency area according to described energy storage power demand values and default every platform energy accumulation current converter, determine the number of units of the energy accumulation current converter participating in power division.
3. the battery energy storage power station control method for supporting light storage electricity generation system black starting-up according to claim 2, it is characterized in that, between the described efficiency area according to energy storage power demand values and default every platform energy accumulation current converter, determine the number of units of the energy accumulation current converter participating in power division, specifically refer to:
Peak power value P between the efficiency area of getting L platform energy accumulation current converter
max;
Described energy storage power demand values P
0value is: (N-1) * P
max≤ P
0≤ N*P
max, N≤L;
Then determine that the number of units of energy accumulation current converter participating in power division is N platform.
4. the battery energy storage power station control method for supporting light storage electricity generation system black starting-up according to claim 3, it is characterized in that, described light storing cogeneration of setting up is exerted oneself optimal objective function, go out force value according to described load power value, photovoltaic and participate in the state-of-charge of the energy accumulation current converter that charge-discharge electric power distributes, determine the power of each energy accumulation current converter that described participation charge-discharge electric power distributes, comprising:
Setting up described smooth storing cogeneration optimal objective function of exerting oneself is:
min{ΔP}＝{P
pv+P
bess-P
load}→0；
Wherein, P
loadfor described load power value; P
pvfor the described photovoltaic be made up of photovoltaic DC-to-AC converter goes out force value; P
bessfor the energy accumulation current converter gross power that total energy accumulation current converter is formed.
5. the battery energy storage power station control method for supporting light storage electricity generation system black starting-up according to claim 4, is characterized in that, obtaining the energy accumulation current converter gross power P of described total energy accumulation current converter formation
bessafter, the power of each energy accumulation current converter of participating in the distribution is obtained according to following methods:
When battery energy storage power station overall power requirement is greater than 0, represent that energy storage needs electric discharge, the power value of each energy accumulation current converter is:
Wherein, P
pcsifor each energy accumulation current converter performance number generated; SOC
ifor the state-of-charge of each energy accumulation current converter; u
ifor the running status of each energy accumulation current converter; P
bessfor described energy accumulation current converter gross power;
When battery energy storage power station overall power requirement is less than 0, represent that energy storage needs charging, the power value of each energy accumulation current converter is:
Wherein, P
pcsifor each energy accumulation current converter performance number generated; SOD
ifor the state-of-charge of each energy accumulation current converter; u
ifor the running status of each energy accumulation current converter; P
bessfor described energy accumulation current converter gross power;
And, SOD
i=1-SOC
i;
Wherein, the constraints of described SOC is: SOC_min≤SOC
i≤ SOC_max.
6., for supporting a battery energy storage power station control system for light storage electricity generation system black starting-up, it is characterized in that, described system comprises:
Power station data acquisition device, comprises operation of power networks state for obtaining, power station data that load type, photovoltaic go out force value, load power value, energy accumulation current converter state-of-charge;
Failure judgment device, for according to described operation of power networks state, judges whether electrical network breaks down;
Run number of units calculation element, for when described grid collapses, go out force value and load power value according to described photovoltaic, utilize energy accumulation current converter efficiency optimization principle, calculate the number of units participating in the energy accumulation current converter that charge-discharge electric power distributes;
Power division calculation element, to exert oneself optimal objective function for setting up light storing cogeneration, go out force value according to described load power value, photovoltaic and participate in the state-of-charge of the energy accumulation current converter that charge-discharge electric power distributes, determine the power of each energy accumulation current converter that described participation charge-discharge electric power distributes.
7. the battery energy storage power station control system for supporting light storage electricity generation system black starting-up according to claim 6, it is characterized in that, described operation number of units calculation element specifically comprises:
When described grid collapses, switch to islet operation pattern, energy accumulation current converter is divided into voltage source energy accumulation current converter and current source energy accumulation current converter;
Go out force value according to described load power value and photovoltaic, generate energy storage power demand values;
Between the efficiency area according to described energy storage power demand values and default every platform energy accumulation current converter, determine the number of units of the energy accumulation current converter participating in power division.
8. the battery energy storage power station control system for supporting light storage electricity generation system black starting-up according to claim 7, it is characterized in that, described operation number of units calculation element is according between the efficiency area of energy storage power demand values and default every platform energy accumulation current converter, determine the number of units of the energy accumulation current converter participating in power division, specifically refer to:
Peak power value P between the efficiency area of getting L platform energy accumulation current converter
max;
Described energy storage power demand values P
0value is: (N-1) * P
max≤ P
0≤ N*P
max, N≤L;
Then determine that the number of units of energy accumulation current converter participating in power division is N platform.
9. the battery energy storage power station control system for supporting light storage electricity generation system black starting-up according to claim 8, it is characterized in that, described power division calculation element specifically comprises:
Setting up described smooth storing cogeneration optimal objective function of exerting oneself is:
min{ΔP}＝{P
pv+P
bess-P
load}→0；
Wherein, P
loadfor described load power value; P
pvfor the described photovoltaic be made up of photovoltaic DC-to-AC converter goes out force value; P
bessfor the energy accumulation current converter gross power that total energy accumulation current converter is formed.
10. the battery energy storage power station control system for supporting light storage electricity generation system black starting-up according to claim 9, it is characterized in that, described power division calculation element is obtaining the energy accumulation current converter gross power P of described total energy accumulation current converter formation
bessafter, the power of each energy accumulation current converter of participating in the distribution is obtained according to following methods:
When battery energy storage power station overall power requirement is greater than 0, represent that energy storage needs electric discharge, the power value of each energy accumulation current converter is:
Wherein, P
pcsifor each energy accumulation current converter performance number generated; SOC
ifor the state-of-charge of each energy accumulation current converter; u
ifor the running status of each energy accumulation current converter; P
bessfor described energy accumulation current converter gross power;
When battery energy storage power station overall power requirement is less than 0, represent that energy storage needs charging, the power value of each energy accumulation current converter is:
Wherein, P
pcsifor each energy accumulation current converter performance number generated; SOD
ifor the state-of-charge of each energy accumulation current converter; u
ifor the running status of each energy accumulation current converter; P
bessfor described energy accumulation current converter gross power;
And, SOD
i=1-SOC
i;
Wherein, the constraints of described SOC is: SOC_min≤SOC
i≤ SOC_max.
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|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109347120A (en) * | 2018-09-25 | 2019-02-15 | 中国电力科学研究院有限公司 | A kind of decision-making technique and system towards mains frequency response |
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| CN111614084A (en) * | 2020-06-09 | 2020-09-01 | 东北电力大学 | Multi-energy-storage-support black-start coordination control method based on dynamic power distribution |
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| CN112701707A (en) * | 2020-12-02 | 2021-04-23 | 国家电网有限公司 | Method for evaluating starting capacity of energy storage converter with asynchronous motor load |
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| CN106451562A (en) * | 2016-12-16 | 2017-02-22 | 北京索英电气技术有限公司 | Black-start system and method for wind and light power storage station |
| CN109698519A (en) * | 2017-10-24 | 2019-04-30 | 中国电力科学研究院有限公司 | A kind of accumulation energy type photovoltaic plant starting method and system supporting power grid"black-start" |
| CN109698519B (en) * | 2017-10-24 | 2022-11-11 | 中国电力科学研究院有限公司 | Energy storage type photovoltaic power station starting method and system for supporting black start of power grid |
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| CN110492537A (en) * | 2019-09-16 | 2019-11-22 | 国电南瑞科技股份有限公司 | A kind of energy storage device method for controlling power balance and system |
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| CN110808600A (en) * | 2019-11-13 | 2020-02-18 | 深圳供电局有限公司 | Method and system for calculating access of battery energy storage station in transformer substation |
| CN111404182A (en) * | 2020-03-31 | 2020-07-10 | 国网江苏省电力有限公司 | Operation method of electrochemical energy storage power station based on lithium iron phosphate medium |
| CN111404182B (en) * | 2020-03-31 | 2022-08-30 | 国网江苏省电力有限公司 | Operation method of electrochemical energy storage power station based on lithium iron phosphate medium |
| CN111668862A (en) * | 2020-05-19 | 2020-09-15 | 南京南瑞继保电气有限公司 | Black start sequence control method for energy storage system |
| CN111668862B (en) * | 2020-05-19 | 2022-08-26 | 南京南瑞继保电气有限公司 | Black start sequence control method for energy storage system |
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