Electromechanical Modeling of the Direct-Driven Wind Turbine Generator Considering the Stochastic Component of Wind Speed

This paper proposes an electromechanical model of the direct-driven wind turbine generator considering the stochastic component of wind speed. The proposed model is implemented as a user-defined model in the Dynamic Simulation Program (DSP) developed by China Southern Electric Power Research Institute (SEPRI). All the electromagnetic dynamics, mechanical dynamics and controller dynamics which may influence the power system stability are taken into consideration, and are divided into eight blocks, to obtain an open and accurate model. Specially, the stochastic components of the wind speed are generated by the spectrum models of turbulences, i.e., Kaimal model and Von Karman model, which make this wind turbine generator model a flexible and convenient simulation tools for the power system stability study considering the uncertainty and volatility of the wind power generation.