Method for analyzing the response power grid frequency of wind storage combined power station

Abstract

The invention discloses a method for analyzing the response power grid frequency of a wind storage combined power station and belongs to the technical field of the wind storage combined power station.The method analyzes the basic principle of an SVM regression algorithm; based on the SVM regression algorithm principle, a frequency response auxiliary service electricity price mechanism based on the real-time electricity price is provided; based on the SVM regression algorithm principle, the wind storage combined power station response power grid frequency characteristic analysis method for thefrequency response auxiliary service electricity price is provided. The method is advantaged in that a model of the response power grid frequency of the wind storage combined power station based on an SVM regression algorithm is established, the influence of the multiple of the auxiliary service electricity price and the real-time electricity price on the system frequency is analyzed, the characteristics of the wind storage combined power station responding to the power grid frequency are comprehensively mastered, design evaluation and improvement of the power station responding to a power grid frequency project are facilitated, and great benefits of the wind storage combined power station serving as a frequency adjustment resource in a power system can be fully mined and exerted.

Description

technical field [0001] The invention belongs to the technical field of wind-storage combined power plants, and in particular relates to an analysis method for wind-storage combined power plants responding to grid frequency. Background technique [0002] The wind-storage combined power station responds to the grid frequency by adjusting its own wind power generator output and energy storage system charging and discharging arrangements to respond to electricity prices and incentive signals. The grid-connected scale of wind power is restricted and affected by various aspects of grid safety and economic operation, among which the frequency regulation capability involves the economic cost of system operation, and is related to the accuracy of wind power output forecast and grid power structure. It is currently recognized as the main factor restricting the scale of wind power acceptance. . The inherent volatility of wind power and the difficulty of accurate prediction make it dif...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an analysis method for the wind-storage combined power station to respond to the frequency of the power grid, so as to solve the inherent volatility of wind power in the prior art and the characteristics of difficulty in accurate prediction, which make it difficult to participate in the frequency scheduling plan of the system, which is not conducive to the power grid technical problems of economic operation

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