A method for determining the reserve capacity of solar primary frequency regulation considering cluster electric vehicles

Abstract

The present invention provides a method for determining the reserve capacity of primary frequency regulation of wind power considering clustered electric vehicles, comprising the following steps: obtaining the historical data of the maximum wind power generating power in each time interval of the wind farm in a day, and predicting the wind power power in real time; Obtain the historical data of photovoltaic power plants, use fuzzy C-means clustering, divide the weather into four basic types: sunny, less cloudy, cloudy, and rainy, and make real-time forecasts for photovoltaic output; combine wind power output and photovoltaic output under each weather condition The data are arranged in order from small to large, and the data are processed using the quartile method; the proportional coefficients of wind and solar curtailment for each part are given respectively; the total reserve capacity of wind farms and photovoltaic power stations is calculated; according to the data provided by electric vehicle aggregators The reliability of the controllable load is greater than or equal to n%, and it is divided into two parts according to the reserve capacity of wind and light; the controllable load provided by the cluster electric vehicle is adjusted; the reserve capacity actually provided by the wind farm and the photovoltaic power station is calculated. By using the invention, while providing reserve capacity, the abandonment of wind and light is reduced.

Description

technical field [0001] The invention relates to the field of calculation of spare capacity for primary frequency modulation of wind and solar energy, in particular to a calculation method for reserve capacity of auxiliary wind and solar power supplies of cluster electric vehicles participating in primary frequency modulation. Background technique [0002] Wind power and photovoltaics, as more promising renewable energy sources, have been increasing their penetration rate in the power grid. At the same time, considering the large amount of historical output of the two, it is often considered to combine the two to form a wind-solar hybrid system for use. However, due to the strong volatility and uncertainty of wind and light, there are many problems in the consumption of wind power and photovoltaics. When the usage ratio of traditional thermal power units decreases, the primary frequency regulation capability of the power system will be affected. Therefore, considering the u...

AI Technical Summary

Problems solved by technology

Since wind power needs to reduce load when participating in frequency regulation, the reserve capacity provided by abandoning wind will cause a certain degree of waste in the long run

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