Wind farm equivalent modeling method and device applied to electromagnetic transient simulation and medium

Abstract

The application discloses a wind farm equivalent modeling method and device applied to electromagnetic transient simulation and a medium. The method decouples a radial wind farm collection network into a parallel wind farm collection network, and calculates equivalent collection impedance of each wind turbine generator in the wind farm collection network; adopts a K-means clustering algorithm based on a community discovery algorithm to classify and aggregate wind turbine generators by taking outlet voltage of each wind turbine generator as a clustering index, so that an aggregated wind turbine generator and a wind farm aggregation model are obtained; centralized reactive compensation capacitors are arranged at outlets of each aggregated wind turbine generator for the wind farm aggregation model, and a centralized reactive compensation capacitor value is calculated; and a zero sequence gain coefficient of a collection line in the wind farm collection network is adjusted, so that zero sequence collection network parameters are equivalent, and a wind farm dynamic equivalent model is obtained. The application improves modeling precision of the wind farm dynamic equivalent model applied to electromagnetic transient simulation.

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