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Method for modifying and checking plan based on feasible output interval in frequency modulation market

A technology of output interval and plan modification, applied in the direction of single-network parallel feeding arrangement, AC network circuit, electrical components, etc., can solve the conflict between scheduling modification plan and frequency regulation market clearing, the difficulty of frequency regulation market clearing, and the difficulty of power plant execution plan and other problems to achieve the effect of improving economic efficiency and ensuring normal operation

Pending Publication Date: 2021-12-31
NR ENG CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, when dispatchers revise the plan, they only modify the plan based on the dispatcher's grasp of the operation of the power grid and their own dispatching experience. In the frequency regulation market environment, if the dispatch modification plan is not checked, it is easy to cause the dispatch modification plan to be inconsistent with the frequency regulation market. Clearance conflicts, resulting in difficulties in clearing the frequency regulation market and difficulty in implementing plans for power plants

Method used

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  • Method for modifying and checking plan based on feasible output interval in frequency modulation market
  • Method for modifying and checking plan based on feasible output interval in frequency modulation market
  • Method for modifying and checking plan based on feasible output interval in frequency modulation market

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Embodiment

[0030] Taking Yunnan Dachaoshan Power Plant as an example, the current power plant is in the stage of winning the bid for frequency modulation, the winning bid for frequency modulation capacity is 80MW, and the unit vibration range is [0-160]. The dispatcher modifies the planned value on the planned value interface of Dachaoshan Power Plant and selects the static check , it is planned to change the planned value from 18:45 to 19:30 to 100. After the modification is confirmed, the plan modification program starts the static mixing of the feasible output interval, and calculates the feasible processing interval under all start-up modes. Such as figure 2 as shown, figure 2 It shows that the program obtains information such as the rated capacity and vibration area of ​​all units, and calculates the feasible output ranges of [560,595], [720,820], [880,1045], [1040,1270] under all start-up modes.

[0031] Then, according to the feasibility output range under the static check meth...

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Abstract

The invention discloses a method for modifying and checking a plan based on a feasible output interval in a frequency modulation market. The method comprises dynamic checking and static checking. The plan modification check is carried out under the condition that the power plant is allowed to start and stop in the static check, and the plan modification check is carried out in the current starting mode in the dynamic check. Under the condition of selecting the static checking mode, a corresponding frequency modulation index is obtained, all reasonable feasible processing intervals are calculated through a feasible output interval algorithm, and whether the scheduling modification plan falls into the feasible output interval is checked; under the condition that the dynamic checking mode is selected, corresponding frequency modulation index parameters are obtained, a feasible output interval in the current starting-up state is calculated through a feasible output interval algorithm, and whether the scheduling modification plan falls into the feasible output interval or not is checked. And finally, a dispatcher is informed of a modification plan checking result, so that the reasonability of scheduling the modification plan is improved, the difficulty of power plant output adjustment is reduced, and the economic benefit of the power plant in the frequency modulation market is improved.

Description

technical field [0001] The invention belongs to the field of power grid operation control, and in particular relates to a method for modifying planned values ​​of power plants in the frequency regulation market environment. Background technique [0002] With the continuous deepening of the supply-side reform of the power grid and the continuous advancement of the construction of the power market, the interaction between the power market system and the traditional OCS system is getting closer and closer. China Southern Power Grid has successively established a power spot market based on Guangdong, a peak-shaving market in Guangxi, and a Yunnan peak-shaving market. FM market etc. Among them, the frequency regulation market is an important part of the power market. Under the environment of the operation of the frequency regulation market, many demands are put forward for the OCS system. In the OCS system, especially the operation of dispatching human intervention, it is necessa...

Claims

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Application Information

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IPC IPC(8): H02J3/24H02J3/46
CPCH02J3/24H02J3/466H02J2300/40
Inventor 姚宇亮王凯董诗焘胡斌叶华路学刚孙华利周南菁沈力张海天陈威
Owner NR ENG CO LTD
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