变速恒频风力发电用交流励磁双馈发电机的研究

描述了变速恒频风力发电用交流励磁双馈发电机的结构特点和运行原理,并通过对该电机基本方程式、等效电路及时空矢量图的分析,导出了电机运行参数(如定、转子电流、有功、无功功率及电磁转矩)的数学表达式,证明了(?)运行性能可表示为转差率、转子励磁电压及与定子电压的相位差角三个变量的函数,为它的应用提供了理论依据。

Study of AC excited doubly-fed generator used by variable-speed constant-frequency wind power generation

Str(?)ctural features and working pdnciple of AC excited doubly-fed generator used by variable-speed constant-frequency wind power generation are described,and the mathematical expressions for the stator and rotor currents,active and reactive power and the electromagnetic torque of this generator are derived based on the basic equation,the equivalent circuit and the phasor diagram.It is shown that the working performance of this generator can be expressed as a function of the slip,the rotor voltage and the angular displacement between the rotor and rator voltage.This provides theoretical reference for the use of this generator.