Method for measuring wind fire bundling configuration proportion on basis of power circle

Abstract

The invention discloses a method for measuring a wind fire bundling configuration proportion on the basis of a power circle, which comprises the following steps of: a step 10 of setting initial parameters; a step 20 of generating an operation mode according to the wind fire bundling configuration proportion; a step 30 of making a P-V curve according to a load flow calculation result obtained in the step 20, and measuring a static voltage stability margin value of a power system according to a P-V curve method; a step 40 of determining relevant parameters of a wind power station and a thermal power plant; a step 50 of measuring the optimal wind fire bundling configuration proportion of the iteration according to a power circle principle; and a step 60 of measuring the optimal wind fire bundling configuration proportion. According to the measuring method, the optimal wind fire bundling configuration proportion of the power system in the static voltage stability margin can be measured, so that the problem of the wind fire configuration proportion is solved.

Description

technical field [0001] The invention belongs to the field of wind power generation in new energy power generation technology, and specifically relates to a method for measuring the ratio of wind-fire bundling configuration based on a power circle. Background technique [0002] With the increase of wind power access capacity and the improvement of access voltage level, the power grid is affected by wind power in a wider range and a greater degree. The influence of grid-connected wind power in Jiuquan, Hami and other regions on the safe and stable operation of the grid has already become prominent, and with the increase of grid-connected scale and capacity, this impact will be further aggravated. At the same time, the Hami area is rich in coal resources, with a proven resource reserve of 41 billion tons; the Jiuquan area is close to the Narinsuhaite coalfield in Mongolia, and the Jiayuguan-Ceke railway has an annual coal transportation capacity of 7.2 million tons, and the lon...

AI Technical Summary

Problems solved by technology

The pure wind power is sent out through the DC system, and the DC is equivalent to a constant load. During normal operation, the wind power varies greatly, resulting in an imbalance in the active power of the system, and a serious deviation in the frequency of the sending end. This problem can theoretically be solved by using the power modulation function of the DC system. It can be solved to a certain extent, but there is no mature operation experience in China at present, and the DC system closely follows the wind power change with uncertainty, which will reduce the operating reliability and equipment life of the DC system, and the operating economy of the DC system is poor

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