双馈异步风力发电机的有功功率特性及转子励磁变频器的参数分析

Analysis of The Active Power Characteristics and Rotor Excitation Inverter Parameters of Double-Fed Asynchronous Machine for Wind Generation

在论述变速恒频双馈风力发电机运行原理的基础上,通过等效电路与电压平衡方程式,详细研究了发电机的有功功率特性,指出发电机转子有功功率的性质与临界转差率的关系;探讨了转子变频器参数与电机参数的匹配问题。最后给出了双馈异步风力发电机的仿真曲线与运行特性曲线。

Based on discussing the running principle of variable-speed constant-frequency double-fed machine for wind generation, the active power characteristics are studied in detail by equivalent circuit and voltage balance equations. The relations between rotor active power and critical slip are presented. The matter of parameter matching between machine and inverter is discussed also. At last, simulation curves and running characteristic curves of double-fed asynchronous machine far wind generation are given.