CN110474301A - A kind of grid side energy-accumulating power station voltage to frequency guard method - Google Patents
A kind of grid side energy-accumulating power station voltage to frequency guard method Download PDFInfo
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- CN110474301A CN110474301A CN201910830405.0A CN201910830405A CN110474301A CN 110474301 A CN110474301 A CN 110474301A CN 201910830405 A CN201910830405 A CN 201910830405A CN 110474301 A CN110474301 A CN 110474301A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
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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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- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention provides a kind of grid side energy-accumulating power station voltage to frequency guard method, includes the following steps: step 1: grid entry point three-phase current is introduced control protection equipment；Step 2: the voltage to frequency protection act logic of modification control protection equipment; there is three-phase alternating current by protecting to introduce in equipment in voltage to frequency; the active reactive blocking function of energy storage station output is introduced in voltage to frequency relay protective scheme; make voltage to frequency protection more from protection system trigger; correct movement in time, and the grid side energy-accumulating power station of double attribute of the guard method of the introducing active reactive blocking function particularly suitable for having both power supply and load.
Description
Technical field
The present invention relates to grid side battery energy storage power station technical fields, and in particular to a kind of grid side energy-accumulating power station frequency electricity
Press guard method.
Background technique
Energy-storage system to the space-time transfer ability of power and energy be solve intermittent new energy power output fluctuation,
Having a rest property etc. consolidates problematic effective measures, and and with the widely available application of the new energy technologies such as wind-power electricity generation, photovoltaic power generation
It obtains fast-developing.Relative to the energy storage mode such as flywheel, water-storage, compressed air, super capacitor, battery energy storage power station has
Energy storage density is big, addressing is flexible, install convenient, can four-quadrant smooth steady operation the advantages that, has entered at home extensively build
Stage, source side, load side battery energy storage power station have no small construction scale.Grid side battery energy storage power station, which has, participates in electricity
The functions such as net peak load shifting, frequency adjust, reactive power support and emergent control, can effectively lifting system operation after Large scale construction
Flexibility, stability, economy and cleannes.
Grid side battery energy storage power station is configured with independent voltage to frequency protection equipment, it is expected that in system voltage and frequency
The safe and stable operation of electric system is supported when occurring abnormal by the quick response of energy storage station.But energy storage station has both power supply and bears
The double attribute of lotus, the voltage to frequency control device for being adapted to grid side energy storage station not yet list, the frequency of energy storage station assembly at present
Rate voltage control protective unit is not able to achieve the monitoring to energy storage station operating status, in fact it could happen that energy storage station is in electric discharge simultaneity factor
Energy storage station is cut off when frequency is relatively low further deteriorates the excision storage when the idle simultaneity factor voltage of suction is higher of system frequency, energy storage station
Can stand the case where further deteriorating system voltage.In other words, the voltage to frequency stabilization control device of energy storage station configuration at present cannot
It is enough really to play near region system emergency support function, in form closer in electric system occurrence frequency or voltage stabilization accident
By interconnection off-the-line, emergency system is isolated and protects energy storage station equipment safety.
In order to avoid errored response deteriorates system running state to energy storage station in the system failure, while giving full play to frequency electricity
The technical performance of pressure protection equipment, the invention proposes a kind of grid side energy-accumulating power station voltage to frequency protection schemes, by frequency
It is introduced in rate voltage protecting apparatus and three-phase alternating current occurs, the active of energy storage station output is introduced in voltage to frequency relay protective scheme
Idle blocking function makes voltage to frequency protection more from protection system trigger, in time correct movement.
Summary of the invention
In order to avoid errored response deteriorates system running state to energy storage station in the system failure, while giving full play to frequency electricity
The technical performance of pressure protection equipment, the invention proposes a kind of grid side energy-accumulating power station voltage to frequency guard methods, by frequency
It is introduced in rate voltage protecting apparatus and three-phase alternating current occurs, the active of energy storage station output is introduced in voltage to frequency relay protective scheme
Idle blocking function makes voltage to frequency protection more from protection system trigger, in time correct movement, and the introducing active reactive
The grid side energy-accumulating power station of double attribute of the guard method of blocking function particularly suitable for having both power supply and load.
According to an aspect of the present invention, a kind of grid side energy-accumulating power station voltage to frequency guard method is provided, including as follows
Step:
Step 1: grid entry point three-phase current is introduced into control protection equipment；
Step 2: the voltage to frequency protection act logic of modification control protection equipment is calculated according to grid entry point three-phase current
It is active to system output must to sentence energy storage station before because of the low movement of frequency for the active power of line and the size and Orientation of reactive power
Power is negative；Before because of the movement of frequency height, energy storage station must be sentenced and be positive to system active power of output；Before because of the low movement of voltage,
Energy storage station must be sentenced to be negative to system output reactive power；Before because of the movement of voltage height, energy storage station must be sentenced to system and export idle function
Rate is positive.
Further, the detailed step of step 1 includes:
Step 1-1: dilatation is carried out to the sampling plate card of voltage to frequency protection equipment, it is made to support at least grid entry point three all the way
Phase voltage and all the way grid entry point three-phase current ability in sampling；
Step 1-2: it modifies to voltage to frequency protection equipment sampling display, on the basis of the display of former analog quantity, increases
Add that the amplitude of the grid entry point three-phase current of outlet and phase are shown, active and reactive power vector is shown；
Step 1-3: the connecting line for providing energy storage station low-voltage bus bar and electric system is outlet, it is specified that energy storage station low-voltage bus bar
Wiring with interior energy accumulation current converter of standing is inlet wire；
Step 1-4: by the grid entry point three-phase current of each outlet access control protection equipment, if outlet switch cabinet have it is spare solely
Vertical protected level CT winding, then the CT winding is accessed control protection equipment by cabling；If without spare independent protective CT winding,
Then it is contemplated that transferring from other screen cabinets, but premise is it is ensured that current loop secondary load is met the requirements；
Step 1-5: grid side battery energy storage power station is made of large number of energy accumulation current converter, each energy accumulation current converter distribution
It arrives at a station interior different low-voltage bus bar section, each bus section, busbar section configures independent voltage to frequency and protects equipment, in access grid-connected three-phase electricity
When stream, different outlet three-phase currents should be avoided and obscure and lead to power calculation and movement measure mistake.
Further, the detailed step of step 2 includes:
Step 2-1: the program in modification control protection equipment increases the calculating of outlet active power and reactive power calculates；
Step 2-2: regulation outlet power direction is then determined when energy-accumulating power station is active/idle to electric system output
Line is active/idle to be positive, and otherwise determines that outlet is active/idle and is negative；
Step 2-3: when control protection equipment monitoring is relatively low to system frequency, while judging that outlet active power is negative,
Then wiretap, support system frequency retrieval are jumped into minute wheel time movement outlet；
Step 2-4: when control protection equipment monitoring declines by a big margin to system frequency, frequency changes with time rate
Df/dt is more than definite value, while judging that outlet active power is negative, then movement tripping immediately correspond on low-voltage bus bar it is all into
Line；
Step 2-5: when control protection equipment monitoring is higher to system frequency, while judging that outlet active power is positive,
Then wiretap, support system frequency retrieval are jumped into minute wheel time movement outlet；
Step 2-6: when control protection equipment monitoring is larger to system frequency ascensional range, frequency changes with time rate
Df/dt is more than definite value, while judging that outlet active power is positive, then movement tripping immediately correspond on low-voltage bus bar it is all into
Line；
Step 2-7: when control protection equipment monitoring is relatively low to system voltage, while judging that outlet active power is negative,
Then wiretap is jumped into minute wheel time movement outlet, and support system voltage restores；
Step 2-8: when control protection equipment monitoring declines by a big margin to system voltage, voltage changes with time rate
Du/dt is more than definite value, while judging that outlet reactive power is negative, then movement tripping immediately correspond on low-voltage bus bar it is all into
Line；
Step 2-9: when control protection equipment monitoring is higher to system voltage, while judging that outlet active power is positive,
Then wiretap is jumped into minute wheel time movement outlet, and support system voltage restores；
Step 2-10: when control protection equipment monitoring is larger to system voltage ascensional range, voltage changes with time rate
Du/dt is more than definite value, while judging that outlet reactive power is positive, then movement tripping immediately correspond on low-voltage bus bar it is all into
Line.
Further, the step step 2-3~step 2-10 is mutually executed parallel.
In a further aspect, the invention also discloses a kind of grid side energy-accumulating power station voltage to frequency to protect system, comprising:
At least one processor；And
At least one processor being connect with the processor communication, in which:
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to refer to
Order is able to carry out guard method as described in any one of the above embodiments.
In a further aspect, the invention also discloses a kind of non-transient computer readable storage mediums, described non-transient
Computer-readable recording medium storage computer instruction, the computer instruction execute the computer such as any of the above-described institute
The guard method stated.
It is an advantage of the current invention that proposing a kind of grid side energy-accumulating power station voltage to frequency guard method, this method can fill
Divide the quick response feature for realizing energy storage station, to support power grid operation.For this purpose, the present invention proposes, grid-connected three-phase electricity is introduced
The measurement of stream, and increase active reactive latching logic in voltage to frequency relay protective scheme, and judge the positive and negative progress of active reactive
Corresponding protection act.Specifically, must sentence energy storage station before because of the low movement of frequency and be negative to system output is active；Because of frequency height
Before movement, energy storage station must be sentenced and be positive to system output is active；Before because of the low movement of voltage, it is idle to system output that energy storage station must be sentenced
It is negative；Before because of the movement of voltage height, energy storage station must be sentenced and be positive to system output is idle, which considers grid-connected in logic judgment
The power flow direction of point really realizes the safe and stable operation of the quick response support system near region system voltage, frequency anomaly,
Can be avoided be likely to occur energy storage station discharge simultaneity factor frequency it is relatively low when excision energy storage station further deteriorate system frequency, storage
Can stand the case where excision energy storage station further deteriorates system voltage when the idle simultaneity factor voltage of suction is higher, and the guard method
Particularly suitable for being used in the grid side energy-accumulating power station for having both the double attribute of power supply and load.
Detailed description of the invention
Fig. 1 is one section of low-voltage bus bar wiring schematic diagram in power grid energy storage station in the present invention；
Fig. 2 is the active reactive latching logic schematic diagram of grid side energy-accumulating power station voltage to frequency guard method in the present invention.
Specific embodiment
The present invention is clearly and completely described below in conjunction with drawings and examples, while also describing the present invention
The technical issues of technical solution solves and beneficial effect, it should be pointed out that described embodiment is intended merely to facilitate to this hair
Bright understanding, and do not play any restriction effect to it.
Grid side battery energy storage power station modulates (Pulse Width using battery pile as energy storage carrier, using pulse width
Modulation, PWM) Semiconductor Converting Technology realizes that four quadrant running, the core devices of power conversion and transmission are insulated gate bipolar
Transistor (Insulated Gate Bipolar Transistor, IGBT), switching off and on can be by trigger pulse spirit
Control living.It is limited by IGBT capacity and electrical tolerance performance limitation, single energy accumulation current converter (Power in energy storage field engineering
Conversion System, PCS) voltage level and capacity it is not high.To realize large capacity Reactive-power control, grid side battery energy storage
Power station is often made of large number of PCS parallel connection, and PCS is connect with the battery compartment for including several battery piles.Energy-accumulating power station
Comprising multistage low-voltage bus bar, each section of bus leads directly from each main transformer low-pressure side of adjacent substation, i.e. each section of low-voltage bus bar frequency
Rate voltage protection function has certain independence.Each PCS is evenly distributed to each section of low-voltage bus bar in energy-accumulating power station, then need for
Voltage to frequency protection equipment is separately configured in each section of low-voltage bus bar.Now set with certain set voltage to frequency protection of certain section of low-voltage bus bar configuration
It is illustrated for standby, wiring signal is as shown in Figure 1.
Currently, voltage to frequency protection equipment only acquires the three-phase alternating voltage for interior low-voltage bus bar of standing, logic judgment at present
Show slightly coarse.Such as energy storage station is sent out active to system, simultaneity factor frequency is relatively low, and voltage to frequency protection still can act excision storage
It can stand, deteriorate system frequency, it is therefore desirable to current transformer (CT) is introduced in Fig. 1, to measure the grid entry point of each branch
Three-phase alternating current.
For this purpose, as shown in Fig. 2, the present invention is proposed for the type of technical problem and control object in voltage to frequency protection
Increase active reactive latching logic in logic.Before because of the low movement of frequency, energy storage station must be sentenced and be negative to system output is active；Because
Before the movement of frequency height, energy storage station must be sentenced and be positive to system output is active；Before because of the low movement of voltage, it is defeated to system energy storage station must to be sentenced
It is idle out to be negative；Before because of the movement of voltage height, energy storage station must be sentenced and be positive to system output is idle.Which thereby enhance voltage to frequency guarantor
Protect device action correctness, can abundant energy storage station quick response Character support power grid operation, and can be avoided and may go out
It is idle same in suction that existing energy storage station excision energy storage station when simultaneity factor frequency of discharging is relatively low further deteriorates system frequency, energy storage station
When system voltage it is higher when excision energy storage station the case where further deteriorating system voltage.Certainly, power judgement needs to pass through voltage
It is calculated with electric current, therefore the grid-connected electric three-phase alternating current of energy storage station outlet must be introduced Fig. 1 by the improved guard method of the present invention
Voltage to frequency protection equipment in.
Specifically, as shown in Fig. 2, being proposed improved the present invention is based on carefully analyzing and finding
A kind of grid side energy-accumulating power station voltage to frequency guard method,
Step 1: grid entry point three-phase current is introduced into control protection equipment；
The step 1 specifically includes following steps 1-1~step 1-5:
Step 1-1: dilatation is carried out to the sampling plate card of voltage to frequency protection equipment, it is made to support at least three-phase alternating current all the way
Voltage and all the way three-phase alternating current ability in sampling；
Step 1-2: it modifies to voltage to frequency protection equipment sampling display, on the basis of the display of former analog quantity, increases
Add that the amplitude of the grid entry point three-phase current of outlet and phase are shown, active and reactive power vector is shown；
Step 1-3: the connecting line for providing energy storage station low-voltage bus bar and electric system is outlet, it is specified that energy storage station low-voltage bus bar
Wiring with interior energy accumulation current converter of standing is inlet wire；
Step 1-4: accessing control protection equipment for each outlet three-phase alternating current, if outlet switch cabinet has spare independent guarantor
Grade CT winding is protected, then the CT winding is accessed control protection equipment by cabling；If, can without spare independent protective CT winding
Consider to transfer from other screen cabinets, but premise is it is ensured that current loop secondary load is met the requirements；
Step 1-5: grid side battery energy storage power station is made of large number of energy accumulation current converter, each energy accumulation current converter distribution
It arrives at a station interior different low-voltage bus bar section, each bus section, busbar section configures independent voltage to frequency and protects equipment, in access outlet three-phase alternating current
When electric current, different outlet three-phase currents should be avoided and obscure and lead to power calculation and movement measure mistake；
Step 2: the voltage to frequency protection act logic of modification control protection equipment is calculated according to grid entry point three-phase current
The active power and reactive power of line must sentence energy storage station and be negative to system active power of output before because of the low movement of frequency；Because
Before the movement of frequency height, energy storage station must be sentenced and be positive to system active power of output；Before because of the low movement of voltage, energy storage station must be sentenced to being
System output reactive power is negative；Before because of the movement of voltage height, energy storage station must be sentenced and be positive to system output reactive power.
The step 2 specifically includes following steps 2-1~step 2-10:
Step 2-1: the program in modification control protection equipment CPU increases the calculating of outlet active power and wattless power meter
It calculates；
Step 2-2: regulation outlet power direction is then determined when energy-accumulating power station is active/idle to electric system output
Line is active/idle to be positive, and otherwise determines that outlet is active/idle and is negative；
Step 2-3: when control protection equipment monitoring is relatively low to system frequency, while judging that outlet active power is negative,
Then wiretap, support system frequency retrieval are jumped into minute wheel time movement outlet；
Step 2-4: when control protection equipment monitoring declines by a big margin to system frequency, frequency changes with time rate
Df/dt is more than definite value, while judging that outlet active power is negative, then movement tripping immediately correspond on low-voltage bus bar it is all into
Line；
Step 2-5: when control protection equipment monitoring is higher to system frequency, while judging that outlet active power is positive,
Then wiretap, support system frequency retrieval are jumped into minute wheel time movement outlet；
Step 2-6: when control protection equipment monitoring is larger to system frequency ascensional range, frequency changes with time rate
Df/dt is more than definite value, while judging that outlet active power is positive, then movement tripping immediately correspond on low-voltage bus bar it is all into
Line；
Step 2-7: when control protection equipment monitoring is relatively low to system voltage, while judging that outlet active power is negative,
Then wiretap is jumped into minute wheel time movement outlet, and support system voltage restores；
Step 2-8: when control protection equipment monitoring declines by a big margin to system voltage, voltage changes with time rate
Du/dt is more than definite value, while judging that outlet reactive power is negative, then movement tripping immediately correspond on low-voltage bus bar it is all into
Line；
Step 2-9: when control protection equipment monitoring is higher to system voltage, while judging that outlet active power is positive,
Then wiretap is jumped into minute wheel time movement outlet, and support system voltage restores；
Step 2-10: when control protection equipment monitoring is larger to system voltage ascensional range, voltage changes with time rate
Du/dt is more than definite value, while judging that outlet reactive power is positive, then movement tripping immediately correspond on low-voltage bus bar it is all into
Line.
It is noted that improve response speed, the step 2-3~step 2-10 can be executed parallel.Determine item
Voltage and frequency and mutation and amplitude situation are successively had detected in part, and after the positive and negative situation of combination active reactive, are being executed
Corresponding protection act, so that it is further to avoid being likely to occur energy storage station excision energy storage station when simultaneity factor frequency of discharging is relatively low
Deteriorate the feelings that system frequency, energy storage station the excision energy storage station when the idle simultaneity factor voltage of suction is higher further deteriorate system voltage
Condition, and the guard method is in the grid side energy-accumulating power station for having both the double attribute of power supply and load particularly suitable for using,
The hardware cost (CT for increasing corresponding branch) of change is low, and software program changes workload very little.
It may also be noted that the technical problem itself in background technique found in the present invention is very difficult, warp
It crosses after carrying out careful analysis to the defect of the prior art, the invention proposes one kind to protect for grid side energy-accumulating power station voltage to frequency
There is three-phase alternating current by protecting to introduce in equipment in voltage to frequency, introduces in voltage to frequency relay protective scheme in maintaining method
The active reactive blocking function of energy storage station output makes voltage to frequency protection more from protection system trigger, in time correctly movement,
And the grid side of double attribute of the guard method of the introducing active reactive blocking function particularly suitable for having both power supply and load
Energy-accumulating power station.
Finally, it is stated that: the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although ginseng
According to previous embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (6)
1. a kind of grid side energy-accumulating power station voltage to frequency guard method, which comprises the steps of:
Step 1: grid entry point three-phase current is introduced into control protection equipment；
Step 2: the voltage to frequency protection act logic of modification control protection equipment calculates outlet according to grid entry point three-phase current
The size and Orientation of active power and reactive power must sentence energy storage station to system active power of output before because of the low movement of frequency
It is negative；Before because of the movement of frequency height, energy storage station must be sentenced and be positive to system active power of output；Before because of the low movement of voltage, it must sentence
Energy storage station is negative to system output reactive power；Before because of the movement of voltage height, must sentence energy storage station to system output reactive power is
Just.
2. voltage to frequency guard method according to claim 1, which is characterized in that the detailed step of step 1 includes:
Step 1-1: dilatation is carried out to the sampling plate card of voltage to frequency protection equipment, it is made to support at least grid entry point three-phase electricity all the way
Pressure and all the way grid entry point three-phase current ability in sampling；
Step 1-2: it modifies to voltage to frequency protection equipment sampling display, on the basis of the display of former analog quantity, increases out
The amplitude and phase of the grid entry point three-phase current of line are shown, active and reactive power vector is shown；
Step 1-3: the connecting line for providing energy storage station low-voltage bus bar and electric system is outlet, it is specified that energy storage station low-voltage bus bar and station
The wiring of interior energy accumulation current converter is inlet wire；
Step 1-4: by the grid entry point three-phase current access control protection equipment of each outlet, if outlet switch cabinet has spare independent guarantor
Grade CT winding is protected, then the CT winding is accessed control protection equipment by cabling；If, can without spare independent protective CT winding
Consider to transfer from other screen cabinets, but premise is it is ensured that current loop secondary load is met the requirements；
Step 1-5: grid side battery energy storage power station is made of large number of energy accumulation current converter, and each energy accumulation current converter distribution is arrived at a station
Interior different low-voltage bus bar section, each bus section, busbar section configures independent voltage to frequency and protects equipment, in access grid-connected three-phase current,
Different outlet three-phase currents should be avoided to obscure and lead to power calculation and movement measure mistake.
3. voltage to frequency guard method according to claim 1, which is characterized in that the detailed step of step 2 includes:
Step 2-1: the program in modification control protection equipment increases the calculating of outlet active power and reactive power calculates；
Step 2-2: regulation outlet power direction then determines that outlet has when energy-accumulating power station is active/idle to electric system output
Function/idle is positive, and otherwise determines that outlet is active/idle and is negative；
Step 2-3: when control protection equipment monitoring is relatively low to system frequency, while judging that outlet active power is negative, then divide
Wiretap, support system frequency retrieval are jumped into round movement outlet；
Step 2-4: when control protection equipment monitoring declines by a big margin to system frequency, frequency changes with time rate df/dt
More than definite value, while judging that outlet active power is negative, then movement tripping immediately corresponds to all inlet wires on low-voltage bus bar；
Step 2-5: when control protection equipment monitoring is higher to system frequency, while judging that outlet active power is positive, then divide
Wiretap, support system frequency retrieval are jumped into round movement outlet；
Step 2-6: when control protection equipment monitoring is larger to system frequency ascensional range, frequency changes with time rate df/dt
More than definite value, while judging that outlet active power is positive, then movement tripping immediately corresponds to all inlet wires on low-voltage bus bar；
Step 2-7: when control protection equipment monitoring is relatively low to system voltage, while judging that outlet active power is negative, then divide
Wiretap is jumped into round movement outlet, and support system voltage restores；
Step 2-8: when control protection equipment monitoring declines by a big margin to system voltage, voltage changes with time rate du/dt
More than definite value, while judging that outlet reactive power is negative, then movement tripping immediately corresponds to all inlet wires on low-voltage bus bar；
Step 2-9: when control protection equipment monitoring is higher to system voltage, while judging that outlet active power is positive, then divide
Wiretap is jumped into round movement outlet, and support system voltage restores.
Step 2-10: when control protection equipment monitoring is larger to system voltage ascensional range, voltage changes with time rate du/dt
More than definite value, while judging that outlet reactive power is positive, then movement tripping immediately corresponds to all inlet wires on low-voltage bus bar.
4. voltage to frequency guard method according to claim 3, which is characterized in that the step step 2-3~step 2-
10 mutually parallel execution.
5. a kind of grid side energy-accumulating power station voltage to frequency protects system characterized by comprising
At least one processor；And
At least one processor being connect with the processor communication, in which:
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to instruct energy
It is enough to execute such as the described in any item voltage to frequency guard methods of Claims 1-4.
6. a kind of non-transient computer readable storage medium, which is characterized in that the non-transient computer readable storage medium is deposited
Computer instruction is stored up, the computer instruction makes the computer execute such as the described in any item voltage to frequency of Claims 1-4
Guard method.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110854935A (en) * | 2019-12-08 | 2020-02-28 | 国网山西省电力公司电力科学研究院 | Photovoltaic power station active power automatic control method with sample plate inverter |
| CN116073420A (en) * | 2023-03-07 | 2023-05-05 | 烟台开发区德联软件有限责任公司 | Multi-application-scene energy storage power station multi-level AGVC control method |
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| CN104868477A (en) * | 2015-05-29 | 2015-08-26 | 国网电力科学研究院武汉南瑞有限责任公司 | Voltage managing device and method based on movable energy storage power station and on-load voltage regulator |
| CN106549417A (en) * | 2017-01-11 | 2017-03-29 | 西安许继电力电子技术有限公司 | A kind of virtual synchronous generator control method and device of photovoltaic energy storage system |
| CN107612007A (en) * | 2017-08-16 | 2018-01-19 | 北京科诺伟业科技股份有限公司 | A kind of light stores up energy accumulation current converter direct current low-voltage protection method in independent micro-capacitance sensor |
| CN109327050A (en) * | 2018-10-16 | 2019-02-12 | 东北大学 | A kind of stabilization network voltage control method that distributed photovoltaic is grid-connected and system terminal |
| CN109768581A (en) * | 2018-12-28 | 2019-05-17 | 国网湖南省电力有限公司 | Power grid voltage regulating and dynamic reactive support and control method for energy-accumulating power station |
| CN110165705A (en) * | 2019-05-30 | 2019-08-23 | 湖南大学 | Marine double-fed fan motor unit high voltage crossing control method and system |
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| CN110854935A (en) * | 2019-12-08 | 2020-02-28 | 国网山西省电力公司电力科学研究院 | Photovoltaic power station active power automatic control method with sample plate inverter |
| CN110854935B (en) * | 2019-12-08 | 2022-07-12 | 国网山西省电力公司电力科学研究院 | Photovoltaic power station active power automatic control method with sample plate inverter |
| CN116073420A (en) * | 2023-03-07 | 2023-05-05 | 烟台开发区德联软件有限责任公司 | Multi-application-scene energy storage power station multi-level AGVC control method |
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