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Multi-Objective Reactive Power Compensation Optimization for Power Grid with Large Scale Offshore Wind Farms

Offshore wind power has a wide developing space in the future because of the increasing demand for green energy. In this paper, a multi-objective reactive power compensation optimization method of power grid integrated with large scale offshore wind farms is presented to optimize the capacity of reactive power compensation. The optimization objectives are considered including voltage deviation, voltage stability, active power loss and total reactive power compensation. Fuzzy optimization model is introduced based on fuzzy evaluation function and fuzzy analytic hierarchy process. Simulation results of Shandong power grid of China demonstrate that the proposed reactive power compensation optimization method can improve the voltage stability and economic effectiveness.