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Wind, solar and pumped storage combined system optimal scheduling method based on non-cooperative game

A non-cooperative game and joint system technology, which is applied in the field of optimal dispatching of wind-solar pumping-storage joint system based on non-cooperative game, can solve the huge challenges of stable operation of regional power grids and other issues

Pending Publication Date: 2020-12-08
STATE GRID GASU ELECTRIC POWER RES INST +1
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a non-cooperative game-based optimal scheduling method for wind-solar pumping-storage combined system to solve the problem that large-scale wind-solar grid-connection poses a huge challenge to the smooth operation of regional power grids

Method used

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  • Wind, solar and pumped storage combined system optimal scheduling method based on non-cooperative game
  • Wind, solar and pumped storage combined system optimal scheduling method based on non-cooperative game
  • Wind, solar and pumped storage combined system optimal scheduling method based on non-cooperative game

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Embodiment

[0122] Such as figure 1 As shown, a non-cooperative game-based optimal scheduling method for wind-solar pumping-storage combined system, the method includes the following steps:

[0123] Step A, establishing a non-cooperative game model;

[0124] The model consists of four elements: game participants, participant strategy set, participant income and game equilibrium strategy.

[0125] A.1. Determine the game participants:

[0126] The game participants are: wind power, photovoltaic, and pumped storage power plants, and W, P, and CX are respectively selected to represent wind power, photovoltaics, and pumped storage power plants.

[0127] A.2. Identify participant strategies:

[0128] When W, P, and CX make independent decisions and games at time t, they use their respective power generation output as the strategy, respectively denoted as P W,t ,P P,t ,P CX,t .

[0129] The actual decision-making is subject to unit characteristics and environmental constraints, and the d...

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Abstract

The invention discloses a wind, solar and pumped storage combined system optimization scheduling method based on a non-cooperative game, belongs to the technical field of power transmission, and aimsto solve the problem of huge challenge of large-scale wind and solar grid connection on the stable operation of a regional power grid. The method comprises the steps that a non-cooperative game modelis established, wherein the model is composed of four elements including game participants, a participant strategy set, participant earnings and a game balance strategy; and the model is solved, wherein a Nash equilibrium solution is solved by adopting an iterative search method. According to the method, the output characteristics of various power plants are comprehensively considered, the benefitmaximization of three participants is taken as an optimization target, a unit output strategy is taken as a decision space, and a Nash equilibrium solving algorithm corresponding to the model is provided; the method is more suitable for the current situation that the opening degree of the power market is sharply increased, facilitates the comprehensive dispatching of wind, solar and pumped storage power stations of power plants participating in dispatching, reduces the wind and light abandoning amount, and guarantees that the output fluctuation of the combined system is minimum and the operation economic benefits are maximum.

Description

technical field [0001] The invention belongs to the technical field of electric power transmission, and in particular relates to a non-cooperative game-based optimal scheduling method for a wind-solar-pumped-storage combined system. Background technique [0002] The output of new energy sources such as wind and light has great uncertainty and intermittency, and large-scale wind and light grid integration brings huge challenges to the stable, reliable and economical operation of regional power grids. The regional power grid must be equipped with sufficient supporting power to meet the peak-shaving and backup requirements of the regional power grid and ensure the system's safe, stable, and economical operation. The installed capacity of new energy is developing rapidly, but its absorption capacity is relatively shrinking. In order to ensure its stable operation, the power grid abandons wind and light, and there is a double unfavorable situation of declining revenue of wind and...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/46H02J3/28G06F30/20G06F111/04
CPCG06F30/20G06F2111/04H02J3/008H02J3/28H02J3/466H02J2203/20H02J2300/22H02J2300/28Y02E70/30
Inventor 赵龙王定美周强沈渭程吕清泉刘丽娟张金平李津陟晶丁坤董海鹰
Owner STATE GRID GASU ELECTRIC POWER RES INST
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