ABSTRACT
WanYe Yao & WeiNa Ma North China Electric Power University, Baoding, China
Kai Bai & Peng Song North China Electric Power Research Institute, Beijing, China
ABSTRACT: To improve the ability of the high voltage ride through of the direct-driven Permanent Magnet Synchronous Generator Wind Turbines, this paper proposes a high voltage ride through control strategy based on multi-modes control and the operational characteristics of the wind turbines. According to the extent of the grid voltage swells and the DC bus voltage, changing the control mode in the grid side converter via the mode selector contributes to the ability of the high voltage ride through of the wind turbines. PSCAD model simulation results show that this control strategy can not only ensure continuous work of the direct-driven Permanent Magnet Synchronous Generator Wind Turbines during grid voltage swells, but also can effectively improve the reactive power compensation capabilities of wind turbines, which will promote the secure and stable operation of the grid.
1 INTRODUCTION
