Coordination control method for wind power discretization and continuous reactive compensation

Abstract

The invention relates to a coordination control method for wind power discretization and continuous reactive compensation. First, an AVC joint debugging system acquires real-time information of reactive compensation devices in a power grid through a control system, and reactive compensation device parameter models and fixed value information in the AVC joint debugging system are combined with voltage reactive information of the power grid to perform reactive optimization strategy calculation on the voltage in a wind power plant, and thus coordination control over the continuous reactive compensation device and other fixed-capacity discrete reactive compensation devices in the wind power field is achieved.

Description

[0001] technical field [0002] The invention relates to a power grid reactive voltage comprehensive control optimization method in the field of electric power system automation, in particular to a coordinated control method for wind power discrete and continuous reactive power compensation. Background technique [0003] Over the past ten years, with the rapid development of China's economy, the country has continued to implement large-scale investment in power grids. As a result, the power system has developed rapidly, the scale of the power grid has grown rapidly, and power automation technology has also been greatly improved. In recent years, the country has especially increased investment in renewable clean energy such as wind power, and green energy such as wind power has developed very rapidly. [0004] Based on the accurate real-time information of the power grid, the AVC system realizes the automatic adjustment of the reactive power of the power grid through the volt...

AI Technical Summary

Problems solved by technology

The current AVC system generally uses the adjustable gear of the transformer and the capacitor / reactor configured in the power grid as the means of voltage and reactive power compensation. Since the current equipped capacitor / reactor is of fixed capacity, the adjustment of the voltage and reactive power by the AVC system is difficult. Discrete, unable to meet the requirements of continuous smooth adjustment of voltage and reactive power in the actual power grid, and unable to truly achieve reactive power local compensation and smooth voltage adjustment

However, the continuous reactive power compensation device has a relatively slow adjustment speed and limited capacity, which cannot adapt to the large fluctuation of voltage and reactive power in the wind farm.

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