CN104753087B - A kind of black-start method of the wind-light storage micro-capacitance sensor containing a variety of energy storage - Google Patents
A kind of black-start method of the wind-light storage micro-capacitance sensor containing a variety of energy storage Download PDFInfo
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Abstract
The invention discloses a kind of black-start methods of the wind-light storage micro-capacitance sensor containing a variety of energy storage, include the following steps：Check micro-capacitance sensor black starting-up condition, micro-capacitance sensor starts black starting-up；Start lithium battery energy storage battery system, put into sensitive load；Start redox flow battery energy storage system, put into remaining load successively；Photovoltaic generating system is put into according to decision condition；Wind-driven generator is put into according to decision condition.The regenerative resources such as present invention comprehensive utilization wind energy, solar energy, reduce environmental pollution, black starting-up process is fast and effective, and the stability of system is greatly improved.
Description
Technical field
The present invention relates to the black of micro-capacitance sensor applied technical field more particularly to a kind of wind-light storage micro-capacitance sensor containing a variety of energy storage
Startup method.
Background technology
In recent years, the renewable power supplies such as wind power generation, photovoltaic generation, tidal power generation obtain extensive concern and application, micro- electricity
Net is the important Land use systems of these regenerative resources.Microgrid is coordinating the contradiction between bulk power grid and distributed generation resource, fully
Excavating distributed energy value and benefit etc. caused by power grid and user has advantage, can in China or even
Critically important effect is played in the development of world's future power grid.Micro-capacitance sensor both can be with networking operation, and can be this with islet operation
Characteristic ensure that the power grid containing microgrid in inclement weather or particular time (such as military war, serious natural calamity) is right
Responsible consumer is powered.Due to bulk power grid failure or micro-capacitance sensor internal fault, micro-capacitance sensor enters stoppage in transit state, micro- in order to give full play to
Power grid self perception, self diagnosis, self decision, the ability of self-recovery, micro-capacitance sensor are needed to complete black starting-up task, be embodied
Economic, reliable, the safe advantage of micro-capacitance sensor.
Existing document has done more detailed research with regard to the specificity analysis of distributed generation resource in microgrid with emulation at present, still
It is also fewer to the research of the black starting-up of single micro-capacitance sensor, for example paper [the black starting-up strategy of isolated micro-capacitance sensor] using acting on behalf of more
(Agent) system, it is proposed that a kind of black starting-up strategy for completely black isolated micro-capacitance sensor, and in light storage bavin micro-capacitance sensor models
Carried out simulating, verifying, the main reference power source in paper using diesel-driven generator as black starting-up, simulation analysis the result shows that, the control
System strategy can realize to fast and stable the black starting-up of micro-capacitance sensor, pass through the optimization of pattern switching and presynchronization, black starting-up process
The stability of middle system is greatly improved.
But most of research is all based on main reference power source of the diesel-driven generator as micro-capacitance sensor black starting-up at present, needs
Consumption of fossil fuels is wanted, and the distributed energy type involved in micro-capacitance sensor is more single.It is micro- in order to embody the green of micro-capacitance sensor
Net should more use the regenerative resources such as wind energy, solar energy, reduce the diesel-driven generator using consumption diesel oil, and for this
The scheme of wind-light storage micro-capacitance sensor of the kind without diesel-driven generator, existing research or even complete mature is all also seldom.
Invention content
It is largely the main reference power source being used as based on diesel-driven generator for current micro-capacitance sensor black starting-up, and in micro-capacitance sensor
The more single present situation of the distributed energy type that is related to, the present invention propose a kind of wind-light storage micro-capacitance sensor based on the energy storage containing multiclass
Black-start method.
To achieve these goals, technical solution provided by the invention is：
A kind of black-start method of the wind-light storage micro-capacitance sensor containing a variety of energy storage, includes the following steps：
(1) black starting-up instruction is received, micro-capacitance sensor black starting-up condition is checked, meets condition and then disconnect on-load switch in microgrid,
Micro-capacitance sensor starts black starting-up；
(2) start lithium battery energy storage battery system, put into sensitive load；
(3) start redox flow battery energy storage system, put into remaining load successively；
(4) photovoltaic generating system is put into according to decision condition；
(5) wind-driven generator is put into according to decision condition.
In step (2), when the frequency f and voltage U of micro-grid system tend towards stability, meet fmin1＜ f ＜ fmax1,Umin1＜ U
＜ Umax1When, start lithium battery energy storage battery system, wherein fmin1,fmax1Frequency limits during for micro-capacitance sensor normal operation, Umin1、Umax1
Voltage bound during for micro-capacitance sensor normal operation.
In step (2), the decision condition of formal input sensitive load is：KL,cj×PL,max≤PLi,max, wherein KL,cjIt is quick
Feel impact coefficient during load input, PL,maxIt is the accessible maximum power of sensitive load, PLi,maxIt is lithium battery maximum work output
Rate.
In step (3), start redox flow battery energy storage system, when meeting KL,cj×PL,new+Pnet≤PLi,max+PVR,maxWhen, according to
The secondary remaining load of input, and according to min (KL,cj×PL,new+Pnet-PLi,max, 0) selection flow battery output power, min ()
Function representation therefrom selects minterm, wherein KL,cjImpact coefficient when being remaining load input, PL,newIt is rated power, Pnet
It is that micro-capacitance sensor circuit damages power, PLi,maxIt is lithium battery peak power output, PVR,maxFor the peak power output of flow battery,
When load input finishes or KL,cj×PL,new+Pnet≤PLi,max+PVR,maxWhen condition is unsatisfactory for, stop the flow of input load.
In step (4), input photovoltaic generating system needs to meet condition：Ppv,mppt+PLi,min+PVR,min≤PL, otherwise do not throw
Enter photovoltaic generating system；Wherein, Ppv,mpptIt is photovoltaic generating system Maximum Power Output, PLi,minIt is the minimum of lithium battery output
Power, PVR,minBe flow battery output minimum power, PLIt is all rated power for having put into load.
In step (5), input wind-driven generator needs to meet condition：Pw+Ppv+PLi,min+PVR,min≤PL, otherwise do not put into
Wind-driven generator；Wherein, PwIt is wind driven generator output power, PpvIt is photovoltaic power generation system output power, PLi,minIt is lithium battery
The minimum power of output, PVR,minBe flow battery output minimum power, PLIt is all rated power for having put into load.
Compared with prior art, the present invention uses main reference power source of the energy-storage system as micro-capacitance sensor black starting-up, and avoids
Using diesel-driven generator, the regenerative resources such as comprehensive utilization wind energy, solar energy reduce environmental pollution, realize green energy resource, for
Different types of energy-storage system, this patent use different Utilization strategies respectively so that black starting-up process quickly and effectively, system
Stability is greatly improved.
Description of the drawings
Fig. 1 is the flow diagram of the black-start method of wind-light storage micro-capacitance sensor of the embodiment of the present invention.
Specific embodiment
Be the flow diagram of the black-start method of wind-light storage micro-capacitance sensor of the embodiment of the present invention with reference to Fig. 1, generally comprise as
Under several big steps：
(1) black starting-up instruction is received, checks micro-capacitance sensor black starting-up condition, meets condition and then separates on-load switch in microgrid,
Micro-capacitance sensor starts black starting-up；
(2) start lithium battery energy storage battery system, put into sensitive load；
(3) start redox flow battery energy storage system, put into remaining load successively；
(4) photovoltaic generating system is put into according to decision condition；
(5) wind-driven generator is put into according to decision condition.
In step (2), lithium battery energy storage battery system is controlled using VF, when the frequency f and voltage U of micro-grid system tend to be steady
It is fixed, meet fmin1＜ f ＜ fmax1,Umin1＜ U ＜ Umax1When, start lithium battery energy storage battery system, wherein fmin1,fmax1For micro-capacitance sensor just
Often frequency limits, U during operationmin1、Umax1Voltage bound during for micro-capacitance sensor normal operation.Formal input sensitive load is sentenced
Fixed condition is：KL,cj×PL,max≤PLi,max, wherein KL,cjImpact coefficient when being sensitive load input, PL,maxIt is sensitive load
Accessible maximum power, PLi,maxIt is lithium battery peak power output.
In step (3), start redox flow battery energy storage system, when meeting KL,cj×PL,new+Pnet≤PLi,max+PVR,maxWhen, according to
The secondary remaining load of input, and according to min (KL,cj×PL,new+Pnet-PLi,max, 0) selection flow battery output power, min ()
Function representation therefrom selects minterm, wherein KL,cjImpact coefficient when being remaining load input, PL,newIt is rated power, Pnet
It is that micro-capacitance sensor circuit damages power, PLi,maxIt is lithium battery peak power output, PVR,maxFor the peak power output of flow battery,
When load input finishes or KL,cj×PL,new+Pnet≤PLi,max+PVR,maxWhen condition is unsatisfactory for, stop the flow of input load.
In step (4), input photovoltaic generating system needs to meet condition：Ppv,mppt+PLi,min+PVR,min≤PL, otherwise do not throw
Enter photovoltaic generating system；Wherein, Ppv,mpptIt is photovoltaic generating system Maximum Power Output, PLi,minIt is the minimum of lithium battery output
Power, PVR,minBe flow battery output minimum power, PLIt is all rated power for having put into load.
In step (5), input wind-driven generator needs to meet condition：Pw+Ppv+PLi,min+PVR,min≤PL, otherwise do not put into
Wind-driven generator；Wherein, PwIt is wind driven generator output power, PpvIt is photovoltaic power generation system output power, PLi,minIt is lithium electricity
The minimum power of pond output, PVR,minBe flow battery output minimum power, PLIt is all rated power for having put into load.
Compared with prior art, the present invention uses main reference power source of the energy-storage system as micro-capacitance sensor black starting-up, and avoids
Using diesel-driven generator, the regenerative resources such as comprehensive utilization wind energy, solar energy reduce environmental pollution, realize green energy resource, for
Different types of energy-storage system, this patent use different Utilization strategies respectively so that black starting-up process quickly and effectively, system
Stability is greatly improved.
It is above disclosed to be merely a preferred embodiment of the present invention, the right of the present invention cannot be limited with this certainly
Range, therefore the equivalent variations made according to scope of the present invention patent, are still within the scope of the present invention.
Claims (4)
1. a kind of black-start method of the wind-light storage micro-capacitance sensor containing a variety of energy storage, which is characterized in that include the following steps：
(1) black starting-up instruction is received, checks micro-capacitance sensor black starting-up condition, the condition that meets then disconnects on-load switch in microgrid, micro- electricity
Net starts black starting-up；
(2) start lithium battery energy storage battery system, put into sensitive load；
(3) start redox flow battery energy storage system, put into remaining load successively；
(4) photovoltaic generating system is put into according to decision condition：When meeting condition Ppv,mppt+PLi,min+PVR,min≤PLWhen put into photovoltaic
Otherwise electricity generation system does not put into photovoltaic generating system, wherein, Ppv,mpptIt is photovoltaic generating system Maximum Power Output, PLi,minIt is
The minimum power of lithium battery output, PVR,minBe flow battery output minimum power, PLIt is all specified work(for having put into load
Rate；
(5) wind-driven generator is put into according to decision condition：Meet condition Pw+Ppv+PLi,min+PVR,min≤PLWhen put into wind-power electricity generation
Otherwise machine does not put into wind-driven generator, wherein, PwIt is wind driven generator output power, PpvIt is photovoltaic power generation system output power,
PLi,minBe lithium battery output minimum power, PVR,minBe flow battery output minimum power, PLIt is all to have put into load
Rated power.
2. a kind of black-start method of the wind-light storage micro-capacitance sensor containing a variety of energy storage as described in claim 1, which is characterized in that
In step (2), when the frequency f and voltage U of micro-grid system tend towards stability, meet fmin1＜ f ＜ fmax1,Umin1＜ U ＜ Umax1
When, start lithium battery energy storage battery system, wherein fmin1,fmax1Frequency limits during for micro-capacitance sensor normal operation, Umin1、Umax1It is micro-
Voltage bound during power grid normal operation.
A kind of 3. black-start method of the wind-light storage micro-capacitance sensor containing a variety of energy storage as described in claim 1, which is characterized in that step
Suddenly in (2), the decision condition of formal input sensitive load is：KL,cj×PL,max≤PLi,max, wherein KL,cjIt is sensitive load input
When impact coefficient, PL,maxIt is the accessible maximum power of sensitive load, PLi,maxIt is lithium battery peak power output.
A kind of 4. black-start method of the wind-light storage micro-capacitance sensor containing a variety of energy storage as described in claim 1, which is characterized in that step
Suddenly in (3), start redox flow battery energy storage system, when meeting KL,cj×PL,new+Pnet≤PLi,max+PVR,maxWhen, input is remaining successively
Load, and according to min (KL,cj×PL,new+Pnet-PLi,max, 0) selection flow battery output power, min () function representation from
In select minterm, wherein KL,cjImpact coefficient when being remaining load input, PL,newIt is rated power, PnetIt is micro-capacitance sensor line
Path loss bad power, PLi,maxIt is lithium battery peak power output, PVR,maxFor the peak power output of flow battery, when load is put into
It finishes or KL,cj×PL,new+Pnet≤PLi,max+PVR,maxWhen condition is unsatisfactory for, stop the flow of input load.
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| CN105226698B (en) * | 2015-09-25 | 2018-02-13 | 南方电网科学研究院有限责任公司 | MMC-HVDC system black start load input method and system |
| CN105262131A (en) * | 2015-10-22 | 2016-01-20 | 华南理工大学 | Black-start system and black-start method applicable to light storage micro grid |
| CN105846463B (en) * | 2016-05-09 | 2018-12-18 | 东南大学 | A kind of black-start method and system of multi-source coordination |
| 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 |
| CN109217348B (en) * | 2017-06-29 | 2024-03-08 | 周锡卫 | Control method of black start device of wind-light power supply micro-grid |
| CN107508320B (en) * | 2017-09-06 | 2020-01-21 | 阳光电源股份有限公司 | Wind power station and black start method thereof |
| CN113675876B (en) * | 2020-05-14 | 2023-09-08 | 南京南瑞继保电气有限公司 | Automatic black start control method for micro-grid |
| CN112332455B (en) * | 2020-11-19 | 2025-07-08 | 西安热工研究院有限公司 | Hydropower station black start system and method with double voltage level wiring |
| CN114825454B (en) * | 2022-06-30 | 2022-11-04 | 西安热工研究院有限公司 | A black-start system and method for combined operation of wind-solar storage and fire-storage |
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