The Comprehensive Aerodynamic-Mechanical-Electrical Modeling of Doubly Fed Induction Generator Based Wind Turbine

摘要

The wind power penetration level in the current power system is increasing year by year. The doubly fed induction generator (DFIG) based wind turbine (WT) is the most widely used, so the modeling of DFIG-based WT is the most fundamental part worthy of study. However, at present, the modeling research on DFIG-based WT is either focused on aerodynamic and mechanical modeling, or on the modeling of generator and converter control. Researches on the comprehensive modeling of DFIG-based WT are rare. In this paper, the wind speed, turbine, shaft-system, generator and converter control related to DFIG-based WT are modeled respectively and a comprehensive aerodynamic-mechanical-electrical modeling of DFIG-based WT is realized. Through the Bladed platform, the accuracy of the relevant models is verified, and the influence of wind speed variation and grid disturbances on the shafting oscillation is further verified, which shows the superiority of the comprehensive aerodynamic-mechanical-electrical modeling of the DFIG-based WT in this paper.