CN108110779A - Energy-storage system is to the response method of plant load deviation in a kind of power station - Google Patents
Energy-storage system is to the response method of plant load deviation in a kind of power station Download PDFInfo
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- CN108110779A CN108110779A CN201810021197.5A CN201810021197A CN108110779A CN 108110779 A CN108110779 A CN 108110779A CN 201810021197 A CN201810021197 A CN 201810021197A CN 108110779 A CN108110779 A CN 108110779A
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- energy
- storage system
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- agc
- deviation
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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
Abstract
The invention discloses energy-storage system in a kind of power station to the response method of plant load deviation, following steps are specifically included：When during AGC load instructions being in and stablize, the actual load of unit is detected；Judge that AGC load instructions and unit actual load whether there is deviation, if in the presence of, judge whether AGC load instructions are more than unit actual load, if then judging whether energy-storage system acting meets deviation supplement, energy-storage system output electric discharge is controlled if it can meet, if cannot meet, energy-storage system action is cut off；If AGC load instructions are less than unit actual load, judge whether energy-storage system acting meets deviation supplement, energy-storage system input is controlled to charge if it can meet, if cannot meet, cut off energy-storage system action.The present invention realizes the deep exploitation of non-load variations phase energy-storage units, improves the responding ability of energy-storage system, improves the stability of power grid.
Description
Technical field
The present invention relates to the sound that energy-storage system in electricity generation system technical field, particularly a kind of power station meets power station deviation
Induction method.
Background technology
In power plant, due to being restricted by fired power generating unit characteristic, simple unit responsive electricity grid load instruction, there are sound
Answer the shortcomings that speed is slow, the response time is longer；Therefore, it is typically by setting power station energy-storage system to solve the problems, such as this mode
The load instruction situation of change of unit responsive electricity grid is aided in, unit can so realized during AGC instruction variations to electricity
The quick response of net burden requirement.But existing energy-storage system can only carry out network load during AGC instructs variation
Quick response, and can not then be realized during AGC instructions are stablized and the deviation of load is responded, this virtually reduces energy storage
The utilization rate of system, while can not also ensure that AGC instructs the stability of operation of power networks during stabilization.
The content of the invention
The technical problem to be solved in the invention is there is provided energy-storage system in a kind of power station to the sound of plant load deviation
Induction method can not only be realized during AGC instructs variation and carry out quick response to network load, while can also refer in AGC
The response to load deviation is realized in order during stablizing, improved the utilization rate of energy-storage system, provided reliably for the stable operation of power grid
It ensures.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
Energy-storage system specifically includes following steps to the response method of plant load deviation in a kind of power station：
1）The situation of change of power grid AGC load instructions is detected, it is synchronous to detect unit when AGC load instructions are in during stablizing
Actual load；
2）AGC load instructions and unit actual load are judged with the presence or absence of deviation, if there are deviations to carry out step 3）；
3）Judge whether AGC load instructions are more than unit actual load, AGC load instructions are more than unit actual load, then run
Step 4）If AGC load instructions are less than unit actual load, operating procedure 5）；
4）Calculating energy-storage system allows the duration that does work, and judges whether energy-storage system acting meets deviation supplement, if it can meet
Control energy-storage system output electric discharge, if cannot meet, cut off energy-storage system action；
5）Calculating energy-storage system allows the duration that does work, and judges whether energy-storage system acting meets deviation supplement, if it can meet
Energy-storage system input is controlled to charge, if cannot meet, cuts off energy-storage system action.
As a result of above technical scheme, the invention technological progress is as follows.
The present invention has expanded energy-storage system in power station, only in response to the operating mode of load variations phase, can not only refer in AGC
It is realized during order variation and quick response is carried out to network load, while can also realized during AGC is instructed and stablized inclined to load
The depth response of difference, improves K2 responding ability of the unit in the steady load stage, makes control finer, energy-storage system action
More rationally, so as to improve the utilization rate of energy-storage system, reliable guarantee is provided for the stable operation of power grid.
Description of the drawings
Fig. 1 is the control flow chart of the present invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in further detail.
Energy-storage system is to the response method of plant load deviation in a kind of power station, based on the energy-storage system set in power station,
And it is controlled by newly-increased measuring unit, diagnosis unit and instruction generation unit come the operating state to energy-storage system.Tool
Body, measuring unit monitors AGC command powers signal and station output on the basis of grid power signal is monitored
Signal, and export to diagnosis unit；Diagnosis unit calculates AGC load instructions and unit actual load during non-AGC varying duties
With the presence or absence of deviation, meanwhile, allow the duration that does work according to the existing calculation of capacity energy-storage units of energy-storage system, and output signal to finger
Make generation unit；Instruction generation unit is to receive the signal of diagnosis unit output, and enabled energy-storage system makes output（It puts
Electricity）Or input（It charges）Action command, and according to the duration that does work is allowed, cut-out energy-storage system exports.
Energy-storage system is to the response method of plant load deviation in power station of the present invention, and flow is as shown in Figure 1, specific
Comprise the following steps.
1）The situation of change of power grid AGC load instructions is detected, it is synchronous to detect when AGC load instructions are in during stablizing
The actual load of unit.AGC load instructions pass through power meter measures, power signal（4-20mA）Into diagnosis unit；Unit is real
Border load passes through power meter measures, power signal（4-20mA）, into diagnosis unit.
2）AGC load instructions and unit actual load are judged with the presence or absence of deviation, if there are deviations to carry out step 3）.
3）Judge whether AGC load instructions are more than unit actual load, AGC load instructions are more than unit actual load, then
Operating procedure 4）If AGC load instructions are less than unit actual load, operating procedure 5）.
4）Calculating energy-storage system allows the duration that does work, and judges whether energy-storage system acting meets deviation supplement, if can be full
It is sufficient then control energy-storage system output electric discharge, output action value for AGC loads and unit load deviation；If cannot meet,
Cut off energy-storage system action.
5）Calculating energy-storage system allows the duration that does work, and judges whether energy-storage system acting meets deviation supplement, if can be full
It is sufficient then energy-storage system input is controlled to charge, output action value for unit load and AGC loads deviation；If cannot meet,
Cut off energy-storage system action.
The present invention can carry out depth response to deviation existing for unit and AGC instructions, improve unit in the AGC stabilization sub stages
In the K2 responding abilities in steady load stage, make control finer, energy-storage units action is more reasonable, and power grid is more stablized.
Claims (1)
1. energy-storage system is to the response method of plant load deviation in a kind of power station, which is characterized in that specifically includes following steps：
1）The situation of change of power grid AGC load instructions is detected, it is synchronous to detect unit when AGC load instructions are in during stablizing
Actual load；
2）AGC load instructions and unit actual load are judged with the presence or absence of deviation, if there are deviations to carry out step 3）；
3）Judge whether AGC load instructions are more than unit actual load, AGC load instructions are more than unit actual load, then run
Step 4）If AGC load instructions are less than unit actual load, operating procedure 5）；
4）Calculating energy-storage system allows the duration that does work, and judges whether energy-storage system acting meets deviation supplement, if it can meet
Control energy-storage system output electric discharge, if cannot meet, cut off energy-storage system action；
5）Calculating energy-storage system allows the duration that does work, and judges whether energy-storage system acting meets deviation supplement, if it can meet
Energy-storage system input is controlled to charge, if cannot meet, cuts off energy-storage system action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810021197.5A CN108110779B (en) | 2018-01-10 | 2018-01-10 | Method for responding power station load deviation by using energy storage system in power station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810021197.5A CN108110779B (en) | 2018-01-10 | 2018-01-10 | Method for responding power station load deviation by using energy storage system in power station |
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| CN108110779A true CN108110779A (en) | 2018-06-01 |
| CN108110779B CN108110779B (en) | 2021-08-13 |
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| CN201810021197.5A Active CN108110779B (en) | 2018-01-10 | 2018-01-10 | Method for responding power station load deviation by using energy storage system in power station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111654217A (en) * | 2020-06-01 | 2020-09-11 | 河北冀研能源科学技术研究院有限公司 | Active power control method of heat supply network head station asynchronous generator set based on current control |
| CN112838603A (en) * | 2020-12-29 | 2021-05-25 | 国电南瑞科技股份有限公司 | Wind-solar energy storage and pumping multi-source energy AGC coordinated complementary control method and device |
| CN112865152A (en) * | 2021-01-20 | 2021-05-28 | 吉林省电力科学研究院有限公司 | Energy storage-unit combined frequency modulation control method for maintaining battery SOC |
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| US20110106474A1 (en) * | 2009-11-04 | 2011-05-05 | Qualcomm Incorporated | Accurate magnetic compass in mobile electronic device |
| CN107086595A (en) * | 2017-05-31 | 2017-08-22 | 河北冀研能源科学技术研究院有限公司 | Response method and system of the energy-storage system to power station primary frequency modulation in a kind of power station |
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| US20110106474A1 (en) * | 2009-11-04 | 2011-05-05 | Qualcomm Incorporated | Accurate magnetic compass in mobile electronic device |
| CN107086595A (en) * | 2017-05-31 | 2017-08-22 | 河北冀研能源科学技术研究院有限公司 | Response method and system of the energy-storage system to power station primary frequency modulation in a kind of power station |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111654217A (en) * | 2020-06-01 | 2020-09-11 | 河北冀研能源科学技术研究院有限公司 | Active power control method of heat supply network head station asynchronous generator set based on current control |
| CN111654217B (en) * | 2020-06-01 | 2023-09-22 | 河北建投能源科学技术研究院有限公司 | Active power control method for asynchronous generator set of heat supply network head station based on current control |
| CN112838603A (en) * | 2020-12-29 | 2021-05-25 | 国电南瑞科技股份有限公司 | Wind-solar energy storage and pumping multi-source energy AGC coordinated complementary control method and device |
| CN112838603B (en) * | 2020-12-29 | 2022-08-26 | 国电南瑞科技股份有限公司 | Wind-solar energy storage and pumping multi-source energy AGC coordinated complementary control method and device |
| CN112865152A (en) * | 2021-01-20 | 2021-05-28 | 吉林省电力科学研究院有限公司 | Energy storage-unit combined frequency modulation control method for maintaining battery SOC |
| CN112865152B (en) * | 2021-01-20 | 2022-12-09 | 吉林省电力科学研究院有限公司 | Energy storage-unit combined frequency modulation control method for maintaining battery SOC |
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| CN108110779B (en) | 2021-08-13 |
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Effective date of registration: 20210727 Address after: 050051 2F, yingban commercial and residential building, 129 Nanxiao street, Qiaoxi District, Shijiazhuang City, Hebei Province Applicant after: HEBEI JI-YAN ENERGY SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Applicant after: HEBEI CONSTRUCTION & INVESTMENT GROUP RENQIU THERMOELECTRICITY Co.,Ltd. Address before: 050000 2nd floor, Yingpan commercial and residential building, 129 Nanxiao street, Qiaoxi District, Shijiazhuang City, Hebei Province Applicant before: HEBEI JI-YAN ENERGY SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |
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Address after: 050051 2F, yingban commercial and residential building, 129 Nanxiao street, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee after: Hebei Jiantou energy science and Technology Research Institute Co.,Ltd. Patentee after: Hebei Construction Investment Renqiu Thermal Power Co., Ltd Address before: 050051 2F, yingban commercial and residential building, 129 Nanxiao street, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee before: HEBEI JI-YAN ENERGY SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Patentee before: Hebei Construction Investment Renqiu Thermal Power Co., Ltd |
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