Calculation method of maximum wind power capacity of regional power grid based on cluster output interval

Abstract

The invention relates to a regional power grid maximum wind power admitting ability calculating method based on a cluster output section. The method comprises the steps that firstly, output data at the same moment i of every day are selected and divided into a groups according to the size sequence, and the number of output data of a wind power cluster at the moment i in all groups is counted, and corresponding probabilities are calculated; secondly, a probability output section of the wind power cluster at the moment i is selected; thirdly, the wind power admitting ability at the moment i is calculated according to the determined probability output section of the wind power cluster and the wind power output range at the moment i; the minimum wind power admitting ability in all the moments is the maximum wind power admitting ability the section. According to the regional power grid maximum wind power admitting ability calculating method, the maximum wind power installed capacity which can be admitted by a power grid is calculated by selecting the maximum probability section of output of the wind power cluster at all moments, the problem caused by the fact that only the power balance of the power grid at the two moments of the load peak and the load valley is taken into consideration is solved, and the optimization planning of the power grid including the wind power cluster and the maximum utilization of wind energy can be achieved.

Description

technical field [0001] The invention relates to a method for calculating the maximum wind power receiving capacity of a regional power grid based on cluster output intervals, and belongs to the technical field of wind power generation. Background technique [0002] Wind power is intermittent, fluctuating and random, and cannot provide stable power generation. Its grid-connected power generation has brought certain impacts and challenges to the safe and stable operation of the grid. With the large-scale centralized development of wind power grid-connected, the grid will Facing a more severe peak shaving situation. [0003] At present, in the grid planning method containing wind farms based on peak load constraints, the wind farms are dealt with only by considering the most serious anti-peak peak load peaks and load lows, that is, it is considered that wind power does not work at all during peak loads , based on the peak load and the maximum output of the conventional unit af...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for calculating the maximum wind power capacity of a regional power grid based on cluster output intervals, so as to solve the problem of peak regulation caused by wind power changes at adjacent moments when determining the maximum wind power capacity of the power grid. question

Images