CN106992537B - A kind of power grid"black-start" method and device - Google Patents
A kind of power grid"black-start" method and device Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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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
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The present invention relates to a kind of power grid"black-start" method and devices, which comprises the black starting-up power supply in fault zone is determined using the battery energy storage power station in fault zone；The control model of the black starting-up power supply is controlled, starting is preferentially activated unit；Technical solution provided by the invention formulates black-start scheme using battery energy storage system, overcomes in traditional black-start scheme and is easy to appear self-excitation and the long insufficient defect of electric power feeding time, to comply with the development trend of battery energy storage high capacity, scale.
Description
Technical field
The present invention relates to storage energy operation control technology fields, and in particular to a kind of Power Grid Black based on battery energy storage power station opens
Dynamic method and device.
Background technique
So-called black starting-up is the recovery after electric system full cut-off, just refers to that entire power grid is being subjected to big disturbance or failure
And after occurrence of large-area power outage, using internal system there is the unit of self-startup ability or system external power to close on power grid
Interconnection support and carry out gradually recovery system, finally realize the process of entire power system recovery normal operating condition.
Self-startup ability refers to that unit is before the deadline from shutdown status in the case where the supply of no exterior power supply
Start and has the ability to system power transmission.Energy-accumulating power station possesses self-startup ability, can promptly counterweight after the system failure
It wants load to power, the black starting-up of power grid is participated in as black starting-up power supply.Chemistry In China and physical power source industry stored energy application branch
" Chinese stored energy application industrial research reports (2016) " of joint publication is pointed out, during " 13 ", domestic energy storage market will
Fast-developing trend is presented, battery energy storage such as lithium ion battery, flow battery answer emphasis 100MW grades of energy-accumulating power station technologies of tackling key problem,
Make black starting-up power supply with battery energy storage power station and complies with this development trend.
Traditional black-start scheme is mostly to start fired power generating unit using Hydropower Unit, this can have the following problems: firstly, water
Motor group is generally more remote, and when putting into unloaded long line, due to the capacity effect of route, it is existing to be easy to produce generator self-excitation
As；Second, the successful self-starting in power station itself has certain probability, it is likely that can be due to circuit question or operating time
It is too long that power transmission is caused to fail.
Summary of the invention
The present invention provides a kind of power grid"black-start" method and device, and the purpose is to formulate black starting-up using battery energy storage system
Scheme overcomes in traditional black-start scheme and is easy to appear self-excitation and the long insufficient defect of electric power feeding time, to comply with battery
Energy storage high capacity, scale development trend.
The purpose of the present invention is adopt the following technical solutions realization:
A kind of power grid"black-start" method, it is improved in that including:
The black starting-up power supply in fault zone is determined using the battery energy storage power station in fault zone；
The control model of the black starting-up power supply is controlled, starting is preferentially activated unit.
Preferably, the battery energy storage power station using in fault zone determines the black starting-up power supply in fault zone, packet
It includes:
Select inner capacities maximum battery energy storage power station in fault zone as black starting-up main power source, remaining electricity in fault zone
Pond energy-accumulating power station is as the auxiliary power supply of black starting-up.
Preferably, the unit satisfaction that is preferentially activated: power needed for unit starting is no more than battery storage in fault zone
Energy power station maximum output, unit power down time was less than 60 minutes；
And in the unit met the requirements, the unit for selecting the black starting-up main power source apart from the black starting-up power supply nearest is made
To be preferentially activated unit.
Preferably, the control model of the control black starting-up power supply, starting are preferentially activated unit, comprising:
The black starting-up main power source work of the black starting-up power supply is controlled in VF mode, to the mother for being preferentially activated unit
Line puts into burning voltage and stable frequency；
Using the black starting-up main power source of the black starting-up power supply as balance nodes, the black starting-up of black starting-up power supply is accessed one by one
Auxiliary power supply, and the auxiliary power work of black starting-up for controlling the black starting-up power supply being currently accessed is put into PQ mode into fault zone
First order load and the station-service electric load for being preferentially activated unit, until the auxiliary power supply of black starting-up for the black starting-up power supply being currently accessed is full
Hair；
Described to be preferentially activated unit starting and finish, the black starting-up main power source of the black starting-up power supply is preferentially opened with described
Motivation group asynchronous switch-on, and black starting-up main power source and the auxiliary power work of black starting-up are controlled in sagging control model.
Further, it is negative that the auxiliary power supply of the black starting-up for the black starting-up power supply being currently accessed puts into level-one into fault zone every time
The summation of lotus and the preferential station-service electric load for being activated unit is no more than battery energy storage power station maximum output in fault zone
5%.
Further, if the auxiliary power supply of the black starting-up for the black starting-up power supply being currently accessed this put into fault zone it is negative
Lotus is T, then the load that the auxiliary power supply of the black starting-up for the black starting-up power supply being currently accessed is put into fault zone next time is T+T.
Preferably, in the control model of the control black starting-up power supply, starting is preferentially activated after unit, wraps
It includes:
Utilize the failure unit for being preferentially activated unit build down and being activated on the build down path of unit.
Further, the build down path that unit is activated described in determining includes:
If being currently activated unit starting to finish, fault zone is selected currently to be activated the nearest machine of unit apart from described
Group is activated unit as next.
A kind of power grid"black-start" device, it is improved in that described device includes:
Determining module, for determining the black starting-up power supply in fault zone using the battery energy storage power station in fault zone；
Control module, for controlling the control model of the black starting-up power supply, starting is preferentially activated unit.
Preferably, the determining module, comprising:
Determination unit, for selecting inner capacities maximum battery energy storage power station in fault zone as black starting-up main power source, therefore
Remaining battery energy storage power station is as the auxiliary power supply of black starting-up in barrier region.
Preferably, the control module, comprising:
First control unit, the black starting-up main power source for controlling the black starting-up power supply work in VF mode, Xiang Suoshu
Preferentially it is activated the bus investment burning voltage and stable frequency of unit；
Second control unit, for being accessed one by one using the black starting-up main power source of the black starting-up power supply as balance nodes
The auxiliary power supply of the black starting-up of black starting-up power supply, and the auxiliary power work of black starting-up for the black starting-up power supply being currently accessed is controlled in PQ mould
Formula puts into first order load into fault zone and is preferentially activated the station-service electric load of unit, until the black starting-up being currently accessed
The auxiliary power supply of the black starting-up of power supply is completely sent out；
Third control unit is preferentially activated unit starting and finishes for described, the black starting-up master of the black starting-up power supply
Power supply is preferentially activated unit asynchronous switch-on with described, and controls black starting-up main power source and the auxiliary power work of black starting-up in sagging control
Molding formula.
Preferably, further includes:
Build down module, for the control model in the control black starting-up power supply, starting is preferentially activated machine
After group, the failure unit for being preferentially activated unit build down and being activated on the build down path of unit is utilized.
Beneficial effects of the present invention:
Traditional black-start scheme is mostly to start fired power generating unit using Hydropower Unit, may be produced from exciting phenomena, and
The successful self-starting in power station itself has certain probability, it is likely that too long can be caused due to circuit question or operating time
Power transmission failure, and technical solution provided by the invention, formulate black-start scheme using battery energy storage system, select suitable main electricity
Source work can provide stable electric voltage frequency and sufficient startup power, overcome in VF mode, auxiliary power work in PQ mode
The defect for being easy to appear self-excitation in traditional black-start scheme, meanwhile, energy-accumulating power station can participate in black starting-up at any time, when starting
Between it is short, electric power feeding time is shorter than Hydropower Unit, it is possible to reduce the grid power blackout time, as early as possible restore power grid operate normally, comply with
Battery energy storage high capacity, scale development trend.
Detailed description of the invention
Fig. 1 is a kind of flow chart of power grid"black-start" method of the present invention；
Fig. 2 is the structural schematic diagram of battery energy storage power station in the embodiment of the present invention；
Fig. 3 is the regional power grid structural schematic diagram in the embodiment of the present invention containing battery energy storage power station；
Fig. 4 is a kind of structural schematic diagram of power grid"black-start" device of the present invention.
Specific embodiment
It elaborates with reference to the accompanying drawing to a specific embodiment of the invention.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
A kind of power grid"black-start" method provided by the invention, system reset mode are build down, i.e., restore high pressure first
And the power supply of possible middle-voltage network, former network structure is established to the maximum extent, is then gradually restored load again, is stored up using battery
Energy system formulates black-start scheme, during recovery, starts black starting-up main power source first, it is established that stable voltage and frequency
Rate charges to nonloaded line, accesses accessory power supply at this time, and investment is activated unit station-service load and important load.With load
Increase, accessory power supply preferentially completely sends out, and main power source plays the role of balance nodes, as shown in Figure 1, comprising:
101. determining the black starting-up power supply in fault zone using the battery energy storage power station in fault zone；
Wherein, battery energy storage power station is using LCL type filter and using the framework of multiple battery pack parallel connections, as shown in Figure 2；
102. controlling the control model of the black starting-up power supply, starting is preferentially activated unit；
Wherein, described to be preferentially activated unit satisfaction: power needed for unit starting is no more than battery energy storage in fault zone
Power station maximum output, unit power down time was less than 60 minutes；
And in the unit met the requirements, the unit for selecting the black starting-up main power source apart from the black starting-up power supply nearest is made
To be preferentially activated unit.
103. utilizing the failure machine for being preferentially activated unit build down and being activated on the build down path of unit
Group.
Wherein it is determined that the build down path for being activated unit includes:
If being currently activated unit starting to finish, fault zone is selected currently to be activated the nearest machine of unit apart from described
Group is activated unit as next.
Specifically, the step 101, comprising:
Select inner capacities maximum battery energy storage power station in fault zone as black starting-up main power source, remaining electricity in fault zone
Pond energy-accumulating power station is as the auxiliary power supply of black starting-up.
After determining black starting-up power supply, the step 102, comprising:
The black starting-up main power source work of the black starting-up power supply is controlled in VF mode, to the mother for being preferentially activated unit
Line puts into burning voltage and stable frequency；
Using the black starting-up main power source of the black starting-up power supply as balance nodes, the black starting-up of black starting-up power supply is accessed one by one
Auxiliary power supply, and the auxiliary power work of black starting-up for controlling the black starting-up power supply being currently accessed is put into PQ mode into fault zone
First order load and the station-service electric load for being preferentially activated unit, until the auxiliary power supply of black starting-up for the black starting-up power supply being currently accessed is full
Hair；
Described to be preferentially activated unit starting and finish, the black starting-up main power source of the black starting-up power supply is preferentially opened with described
Motivation group asynchronous switch-on, and black starting-up main power source and the auxiliary power work of black starting-up are controlled in sagging control model.
Wherein, the operation control strategy of battery energy storage power station includes: PQ control, VF control and sagging control etc., PQ control
It is active reactive control, belongs to Grid-connected Control Strategy, by controlling grid-connected current, provides fixed voltage and frequency in main power source
In the case of, realize that, to active and idle decoupling control, VF control is electricity with the method for dq transformation and grid-connected current closed-loop control
The control of voltage-frequency rate, belongs to off-network control strategy, by control output voltage and frequency, with outer voltage, grid-connected current inner ring
Double-loop control strategy may be implemented to export constant voltage and frequency, and sagging control is control energy storage inverter simulation tradition
Active-frequency curve, that is, P-F curve and idle-voltage curve, that is, Q-V curve adjustment characteristic control mode in power grid, passes through
The voltage and frequency for detecting energy storage output end, the output for adjusting energy-storage system according to droop characteristic are active and idle.
Further, it is negative that the auxiliary power supply of the black starting-up for the black starting-up power supply being currently accessed puts into level-one into fault zone every time
The summation of lotus and the preferential station-service electric load for being activated unit is no more than battery energy storage power station maximum output in fault zone
5%.
If this load put into fault zone of the auxiliary power supply of the black starting-up for the black starting-up power supply being currently accessed is T,
The load that the auxiliary power supply of the black starting-up for the black starting-up power supply being currently accessed is put into fault zone next time is T+T, i.e. black starting-up
Auxiliary power supply is put into after load every time, increases auxiliary power supply power output, and increment is equal to the size of this time investment load.
The present invention provides a kind of embodiment of power grid"black-start" method, as shown in figure 3, utilizing three battery energy storage power station systems
Determine black-start scheme, comprising:
(1) its capacity maximum of energy-accumulating power station 1 is set, then selects energy-accumulating power station 1 as black starting-up main power source.Energy-accumulating power station 2 and 3
As the auxiliary power supply of black starting-up.Energy-accumulating power station 1 is switched to VF control model, puts into power grid, charges to nonloaded line.
(2) energy-accumulating power station 2 is put into, is worked in PQ mode.Slowly investment important load and station service, and increase energy-accumulating power station
2 output power is until full hair.
(3) energy-accumulating power station 3 is put into, continues investment station-service load with the increase of load and is stepped up energy-accumulating power station 3
Output power.Energy-accumulating power station 1 is used as balance nodes at this time, balances the whole network power, the voltage and frequency for maintaining power grid constant.
(4) out of service to protect battery pack when the SOC of energy-accumulating power station 2 or 3 is less than 20%, by remaining energy storage electricity
Station undertakes whole loads.
(5) when be activated unit starting complete after, and busbar voltage, frequency, phase, phase sequence it is all identical when, closure
Thermal power plant boosting transformer breaker makes to be activated unit and energy-accumulating power station realizes asynchronous switch-on, paired running.
(6) energy-accumulating power station is switched to sagging control model at this time, i.e. PF/QV control is tracked by simulation synchronous generator
It is activated the voltage and frequency that fired power generating unit is set up, the stabilization of voltage and frequency in guarantee system.
(7) by the way of build down, it is closed next station-service transformer breaker for being activated unit, slowly puts into the factory
Station-service load, and restore the normal operation of more important loads.
(8) second be activated unit starting success after and system asynchronous switch-on, paired running.When energy-accumulating power station 1
When SOC is less than 20%, due to having successfully started up fired power generating unit, system obtains certain power, to protect battery pack, storage
Energy power station is out of service.
(9) power supply for restoring load successively is gradually recovered in power grid the normal of whole units in such a way that series connection restores
Operation, and exit the operation of whole energy-accumulating power stations.
The present invention also provides a kind of power grid"black-start" devices, as shown in figure 4, described device includes:
Determining module, for determining the black starting-up power supply in fault zone using the battery energy storage power station in fault zone；
Wherein, battery energy storage power station is using LCL type filter and using the framework of multiple battery pack parallel connections, as shown in Figure 2；
Control module, for controlling the control model of the black starting-up power supply, starting is preferentially activated unit.
Wherein, described to be preferentially activated unit satisfaction: power needed for unit starting is no more than battery energy storage in fault zone
Power station maximum output, unit power down time was less than 60 minutes；
And in the unit met the requirements, the unit for selecting the black starting-up main power source apart from the black starting-up power supply nearest is made
To be preferentially activated unit.
Build down module, for utilizing the build down road for being preferentially activated unit build down and being activated unit
Failure unit on diameter.
Wherein it is determined that the build down path for being activated unit includes:
If being currently activated unit starting to finish, fault zone is selected currently to be activated the nearest machine of unit apart from described
Group is activated unit as next.
Specifically, the determining module, comprising:
Determination unit, for selecting inner capacities maximum battery energy storage power station in fault zone as black starting-up main power source, therefore
Remaining battery energy storage power station is as the auxiliary power supply of black starting-up in barrier region.
The control module, comprising:
First control unit, the black starting-up main power source for controlling the black starting-up power supply work in VF mode, Xiang Suoshu
Preferentially it is activated the bus investment burning voltage and stable frequency of unit；
Second control unit, for being accessed one by one using the black starting-up main power source of the black starting-up power supply as balance nodes
The auxiliary power supply of the black starting-up of black starting-up power supply, and the auxiliary power work of black starting-up for the black starting-up power supply being currently accessed is controlled in PQ mould
Formula puts into first order load into fault zone and is preferentially activated the station-service electric load of unit, until the black starting-up being currently accessed
The auxiliary power supply of the black starting-up of power supply is completely sent out；
Third control unit is preferentially activated unit starting and finishes for described, the black starting-up master of the black starting-up power supply
Power supply is preferentially activated unit asynchronous switch-on with described, and controls black starting-up main power source and the auxiliary power work of black starting-up in sagging control
Molding formula.
Further, it is negative that the auxiliary power supply of the black starting-up for the black starting-up power supply being currently accessed puts into level-one into fault zone every time
The summation of lotus and the preferential station-service electric load for being activated unit is no more than battery energy storage power station maximum output in fault zone
5%.
If this load put into fault zone of the auxiliary power supply of the black starting-up for the black starting-up power supply being currently accessed is T,
The load that the auxiliary power supply of the black starting-up for the black starting-up power supply being currently accessed is put into fault zone next time is T+T, i.e. black starting-up
Auxiliary power supply is put into after load every time, increases auxiliary power supply power output, and increment is equal to the size of this time investment load.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
Invention is explained in detail referring to above-described embodiment for pipe, it should be understood by those ordinary skilled in the art that: still
It can be with modifications or equivalent substitutions are made to specific embodiments of the invention, and without departing from any of spirit and scope of the invention
Modification or equivalent replacement, should all cover within the scope of the claims of the present invention.
Claims (10)
1. a kind of power grid"black-start" method, which is characterized in that the described method includes:
The black starting-up power supply in fault zone is determined using the battery energy storage power station in fault zone；
The control model of the black starting-up power supply is controlled, starting is preferentially activated unit；
The control model of the control black starting-up power supply, starting are preferentially activated unit, comprising:
The black starting-up main power source work of the black starting-up power supply is controlled in VF mode, is thrown to the bus for being preferentially activated unit
Enter burning voltage and stable frequency；
Using the black starting-up main power source of the black starting-up power supply as balance nodes, the auxiliary electricity of black starting-up of black starting-up power supply is accessed one by one
Source, and the auxiliary power work of black starting-up for controlling the black starting-up power supply being currently accessed puts into level-one into fault zone in PQ mode
Load and the station-service electric load for being preferentially activated unit, until the auxiliary power supply of black starting-up for the black starting-up power supply being currently accessed completely is sent out；
It is described to be preferentially activated unit starting and finish, the black starting-up main power source of the black starting-up power supply and described preferentially it is activated machine
Group asynchronous switch-on, and black starting-up main power source and the auxiliary power work of black starting-up are controlled in sagging control model.
2. the method as described in claim 1, which is characterized in that the battery energy storage power station using in fault zone determines event
Hinder the black starting-up power supply in region, comprising:
Select inner capacities maximum battery energy storage power station in fault zone as black starting-up main power source, remaining battery storage in fault zone
Energy power station is as the auxiliary power supply of black starting-up.
3. the method as described in claim 1, which is characterized in that described to be preferentially activated unit satisfaction: function needed for unit starting
Rate is no more than battery energy storage power station maximum output in fault zone, and unit power down time was less than 60 minutes；
And in the unit met the requirements, select the unit nearest apart from the black starting-up main power source of the black starting-up power supply as excellent
First it is activated unit.
4. the method as described in claim 1, which is characterized in that the auxiliary power supply of the black starting-up for the black starting-up power supply being currently accessed is each
The summation for putting into first order load into fault zone and being preferentially activated the station-service electric load of unit is no more than electricity in fault zone
The 5% of pond energy-accumulating power station maximum output.
5. the method as described in claim 1, which is characterized in that if the auxiliary power supply sheet of the black starting-up for the black starting-up power supply being currently accessed
The secondary load put into fault zone is T, then the auxiliary power supply of the black starting-up for the black starting-up power supply being currently accessed is next time to failure
The load put into region is T+T.
6. the method as described in claim 1, which is characterized in that in the control model of the control black starting-up power supply, open
It is dynamic to be preferentially activated after unit, comprising:
Utilize the failure unit for being preferentially activated unit build down and being activated on the build down path of unit.
7. method as claimed in claim 6, which is characterized in that the build down path for being activated unit described in determining includes:
If being currently activated unit starting to finish, fault zone is selected to make apart from the nearest unit of unit that is currently activated
Unit is activated to be next.
8. a kind of power grid"black-start" device based on battery energy storage power station, which is characterized in that described device includes:
Determining module, for determining the black starting-up power supply in fault zone using the battery energy storage power station in fault zone；
Control module, for controlling the control model of the black starting-up power supply, starting is preferentially activated unit；
The control module, comprising:
First control unit, the black starting-up main power source for controlling the black starting-up power supply work in VF mode, to described preferential
It is activated the bus investment burning voltage and stable frequency of unit；
Second control unit, for accessing black open one by one using the black starting-up main power source of the black starting-up power supply as balance nodes
The auxiliary power supply of black starting-up of dynamic power supply, and control the auxiliary power work of black starting-up of the black starting-up power supply being currently accessed in PQ mode, to
First order load is put into fault zone and is preferentially activated the station-service electric load of unit, until the black starting-up power supply being currently accessed
The auxiliary power supply of black starting-up is completely sent out；
Third control unit is preferentially activated unit starting and finishes for described, the black starting-up main power source of the black starting-up power supply
It preferentially is activated unit asynchronous switch-on with described, and controls black starting-up main power source and the auxiliary power work of black starting-up in sagging control mould
Formula.
9. device as claimed in claim 8, which is characterized in that the determining module, comprising:
Determination unit, for selecting inner capacities maximum battery energy storage power station in fault zone as black starting-up main power source, faulty section
Remaining battery energy storage power station is as the auxiliary power supply of black starting-up in domain.
10. device as claimed in claim 8, which is characterized in that further include:
Build down module, for the control model in the control black starting-up power supply, starting be preferentially activated unit it
Afterwards, the failure unit for being preferentially activated unit build down and being activated on the build down path of unit is utilized.
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| CN108281965B (en) * | 2018-02-08 | 2020-12-25 | 国网黑龙江省电力有限公司电力科学研究院 | Black start power supply recovery method |
| CN108599201A (en) * | 2018-06-07 | 2018-09-28 | 南京南瑞继保电气有限公司 | A kind of large capacity off-network type micro-capacitance sensor mixing frequency modulation method |
| CN110763995B (en) * | 2018-07-25 | 2021-10-08 | 中国石油化工股份有限公司 | Steam pressure control simulation system of steam extraction thermoelectric unit |
| CN111953006B (en) * | 2019-05-14 | 2022-01-07 | 清华大学 | Black start method and system for power system |
| CN111064191A (en) * | 2019-12-27 | 2020-04-24 | 国网北京市电力公司 | Black start method and device for urban power grid |
| CN113098062A (en) * | 2021-04-12 | 2021-07-09 | 中国恩菲工程技术有限公司 | Method and device for controlling black start of microgrid, electronic equipment and storage medium |
| CN113595155A (en) * | 2021-07-30 | 2021-11-02 | 西安热工研究院有限公司 | Stability analysis method for new energy storage black start control system |
| CN113595156A (en) * | 2021-07-30 | 2021-11-02 | 西安热工研究院有限公司 | Method for increasing robustness of energy storage system in black-start power supply recovery stage |
| CN114825452B (en) * | 2022-06-29 | 2022-09-20 | 西安热工研究院有限公司 | Thermal power high-voltage direct-hanging energy storage black start system |
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