CN105958551A - Method for using energy storage to improve AGC response of thermal power plant - Google Patents
Method for using energy storage to improve AGC response of thermal power plant Download PDFInfo
- Publication number
- CN105958551A CN105958551A CN201610381264.5A CN201610381264A CN105958551A CN 105958551 A CN105958551 A CN 105958551A CN 201610381264 A CN201610381264 A CN 201610381264A CN 105958551 A CN105958551 A CN 105958551A
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- Prior art keywords
- energy storage
- agc
- storage device
- response
- control system
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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
- H02J3/46—Controlling of the sharing of output between the 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to the technical field of operation and control of an electric power system, and specifically relates to a method for using energy storage to improve AGC (Automatic Generation Control) response of a thermal power plant. The method can realize high speed control of AGC response of the thermal power plant, can improve the AGC response speed of the thermal power plant, and can improve the economical efficiency of the set and reduce the maintenance cost of the related equipment at the same time. The method for using energy storage to improve AGC response of a thermal power plant mainly includes the following steps: constructing a control system; giving a response to an AGC load up command by means of the control system; and giving a response to an AGC load down command by means of the control system.
Description
Technical field
The present invention relates to operation and control of electric power system technical field, particularly to a kind of method utilizing energy storage to improve thermal power plant AGC response.
Background technology
Automatic Generation Control (Automatic Generation Control, it is called for short AGC), be generate electricity by way of merging two or more grid systems factory generating set regulation exert oneself in adjusting range, follow the tracks of the instruction that power scheduling mechanism of exchange issues, generated output is adjusted in real time, to meet power system frequency and the service of dominant eigenvalues control requirement according to certain regulations speed.
In order to increase the schedulability of fired power generating unit, " two detailed rules and regulations " to fired power generating unit scheduling are put into effect, as important examination also for preferably receiving wind-powered electricity generation, national grid.Examination to thermal power generation unit is concentrated mainly in the response speed of AGC, the examination of " gold and silver " improves unit regulation performance to a certain extent, the most also equipment each to thermal power generation unit itself proposes higher requirement, thermal power generation process is a complicated process, relates to the every aspect of the equipment such as machine stove electricity.The most controlled strategy impact of the response speed of AGC, the impact such as other factors such as method of operation, equipment inherent character (such as large delay, non-linear) is also not as ignorance.Undue dependence thermal power generation unit itself goes to improve AGC response speed may affect equipment life and unit economy.
Summary of the invention
The technical problem to be solved is to provide a kind of method utilizing energy storage to improve thermal power plant AGC response, to improve thermal power plant AGC response speed, improves the economy of unit simultaneously and reduces the maintenance cost of relevant device.
The technical scheme is that
A kind of method utilizing energy storage to improve thermal power plant AGC response, comprises the following steps:
Step 1 builds control system
Control system includes high voltage bus, switch, main transformer, electromotor, station-service Working transformer, 10KV auxiliary bus bar section, energy storage supply transformer and energy storage device and two-way inverter.High voltage bus connects main transformer, main transformer sending and receiving motor and station-service Working transformer by switch, and station-service Working transformer connects 10KV auxiliary bus bar section, and 10KV auxiliary bus bar section connects energy storage device and two-way inverter by energy storage supply transformer.
The response that AGC load up is instructed by step 2 control system
When unit receives the instruction of AGC load up, cut energy storage device and two-way inverter and power to 10KV auxiliary bus bar section to inverter mode, stop energy storage device and the work of two-way inverter when the power of the assembling unit reaches AGC demand.
The response that AGC load down is instructed by step 3 control system
When unit receives the instruction of AGC load down, cut energy storage device and two-way inverter to rectification state to cutting energy storage device charging, stop energy storage device and the work of two-way inverter when the power of the assembling unit reaches AGC demand.
Beneficial effects of the present invention: utilize technical scheme, when unit receives AGC liter or load down instruction, energy exchange is carried out by two-way inverter between unit station-service working bus bar and energy storage device, thermal power plant AGC response speed can be improved, improve the economy of unit simultaneously and reduce the maintenance cost of relevant device.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of control system of the present invention.
In Fig. 1,1-high voltage bus, 2-switchs, 3-main transformer, 4-electromotor, 5-station-service Working transformer, 6-10KV auxiliary bus bar section, 7-energy storage supply transformer, 8-energy storage device and two-way inverter.
Detailed description of the invention
Embodiment carries out thermal power plant AGC response by following steps and controls:
Step 1 builds control system
As it is shown in figure 1, control system includes high voltage bus 1, switch 2, main transformer 3, electromotor 4, station-service Working transformer 5,10KV auxiliary bus bar section 6, energy storage supply transformer 7 and energy storage device and two-way inverter 8.High voltage bus 1 connects main transformer 3, main transformer 3 sending and receiving motor 4 and station-service Working transformer 5 by switch 2, and station-service Working transformer 5 connects 10KV auxiliary bus bar section 6, and 10KV auxiliary bus bar section 6 connects energy storage device and two-way inverter 8 by energy storage supply transformer 7.
The response that AGC load up is instructed by step 2 control system
When unit receives the instruction of AGC load up, cut energy storage device and two-way inverter 8 and power to 10KV auxiliary bus bar section 6 to inverter mode, stop energy storage device when the power of the assembling unit reaches AGC demand and two-way inverter 8 works.
The response that AGC load down is instructed by step 3 control system
When unit receives the instruction of AGC load down, cut energy storage device and two-way inverter 8 charges to energy storage device to rectification state, stop energy storage device when the power of the assembling unit reaches AGC demand and two-way inverter 8 works.
The above embodiment is only the preferred embodiments of the present invention, and and the feasible enforcement of non-invention exhaustive.For persons skilled in the art, any obvious change done to it on the premise of without departing substantially from the principle of the invention and spirit, within all should being contemplated as falling with the claims of the present invention.
Claims (1)
1. one kind utilizes the method that energy storage improves thermal power plant AGC response, it is characterised in that it comprises the following steps:
Step 1 builds control system
Described control system includes high voltage bus (1), switch (2), main transformer (3), electromotor (4), station-service Working transformer (5), 10KV auxiliary bus bar section (6), energy storage supply transformer (7) and energy storage device and two-way inverter (8)；Described high voltage bus (1) connects main transformer (3) by switch (2), described main transformer (3) sending and receiving motor (4) and station-service Working transformer (5), described station-service Working transformer (5) meets 10KV auxiliary bus bar section (6), and described 10KV auxiliary bus bar section (6) connects energy storage device and two-way inverter (8) by energy storage supply transformer (7)；
The response that AGC load up is instructed by step 2 control system
When unit receives the instruction of AGC load up, cut energy storage device and two-way inverter (8) and power to 10KV auxiliary bus bar section (6) to inverter mode, stop energy storage device and two-way inverter (8) work when the power of the assembling unit reaches AGC demand；
The response that AGC load down is instructed by step 3 control system
When unit receives the instruction of AGC load down, cut energy storage device and two-way inverter (8) and charge to energy storage device to rectification state, stop energy storage device and two-way inverter (8) work when the power of the assembling unit reaches AGC demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381264.5A CN105958551A (en) | 2016-06-01 | 2016-06-01 | Method for using energy storage to improve AGC response of thermal power plant |
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| CN201610381264.5A CN105958551A (en) | 2016-06-01 | 2016-06-01 | Method for using energy storage to improve AGC response of thermal power plant |
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| CN105958551A true CN105958551A (en) | 2016-09-21 |
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| CN201610381264.5A Pending CN105958551A (en) | 2016-06-01 | 2016-06-01 | Method for using energy storage to improve AGC response of thermal power plant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524142A (en) * | 2016-12-22 | 2017-03-22 | 河北省电力建设调整试验所 | Method for improving AGC response capability of circulating fluidized bed unit |
| CN107394827A (en) * | 2017-08-24 | 2017-11-24 | 赫普科技发展（北京）有限公司 | The system that a kind of electrode boiler joint accumulation of energy facility carries out power grid frequency modulation |
| CN107612005A (en) * | 2017-10-27 | 2018-01-19 | 河北冀研能源科学技术研究院有限公司 | Energy-storage system collaboration Steam Turbine governing stage full load operation method and system in power station |
| CN110071533A (en) * | 2019-05-23 | 2019-07-30 | 西安热工研究院有限公司 | A kind of PMU modernization system suitable for energy storage auxiliary power generation unit frequency modulation |
| WO2022016655A1 (en) * | 2020-07-24 | 2022-01-27 | 西安热工研究院有限公司 | Thermal power generating unit primary frequency modulation system having energy storage device having controllable load |
| CN114825452A (en) * | 2022-06-29 | 2022-07-29 | 西安热工研究院有限公司 | Thermal power high-voltage direct-hanging energy storage black start system |
| WO2024000997A1 (en) * | 2022-06-29 | 2024-01-04 | 西安热工研究院有限公司 | Standby power supply system for thermal power direct-mount energy storage and frequency modulation plant |
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| CN102916486A (en) * | 2012-09-28 | 2013-02-06 | 南方电网科学研究院有限责任公司 | Control method for diesel and stored energy coordination of intelligent micro-grid |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524142A (en) * | 2016-12-22 | 2017-03-22 | 河北省电力建设调整试验所 | Method for improving AGC response capability of circulating fluidized bed unit |
| CN106524142B (en) * | 2016-12-22 | 2019-06-04 | 河北省电力建设调整试验所 | A method of improving Properties of CFB AGC responding ability |
| CN107394827A (en) * | 2017-08-24 | 2017-11-24 | 赫普科技发展（北京）有限公司 | The system that a kind of electrode boiler joint accumulation of energy facility carries out power grid frequency modulation |
| CN107612005A (en) * | 2017-10-27 | 2018-01-19 | 河北冀研能源科学技术研究院有限公司 | Energy-storage system collaboration Steam Turbine governing stage full load operation method and system in power station |
| CN110071533A (en) * | 2019-05-23 | 2019-07-30 | 西安热工研究院有限公司 | A kind of PMU modernization system suitable for energy storage auxiliary power generation unit frequency modulation |
| WO2022016655A1 (en) * | 2020-07-24 | 2022-01-27 | 西安热工研究院有限公司 | Thermal power generating unit primary frequency modulation system having energy storage device having controllable load |
| CN114825452A (en) * | 2022-06-29 | 2022-07-29 | 西安热工研究院有限公司 | Thermal power high-voltage direct-hanging energy storage black start system |
| WO2024000997A1 (en) * | 2022-06-29 | 2024-01-04 | 西安热工研究院有限公司 | Standby power supply system for thermal power direct-mount energy storage and frequency modulation plant |
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Application publication date: 20160921 |