基于PSCAD/EMTDC的双馈感应风电机组变桨距控制仿真分析

Simulation and analysis for pitch control of doubly-fed induction wind turbine with PSCAD/EMTDC software

提出一种简化的风力机变桨距控制模型,通过发电机转速和风力机输出功率的反馈信号分别调节桨距角,控制发电机的转速恒定和风力机输出功率平稳.采用PSCAD/EMTDC仿真软件建立该变桨距控制模型,对整个风力发电系统(包括双馈电机和并网装置等)进行仿真,验证该风力机变桨距控制方法的可行性.

This paper presents a simplified model of wind turbine variable pitch control. The pitch angle is adjusted by the feedback signals of generating speed and the output power of the wind turbine. And it can control generators speed constant and wind turbine output power steady. The variable pitch control is modeled using the simulation software PSCAD/EMTDC. The entire wind power system （including doubly-fed induction generators, converter and so on） is simulated. Results show that the variable pitch control strategy is feasible and correct.