采用了一种新的三相电压型PWM整流器控制方案,建立了整流器输入电流控制的d-q模型,该模型对电网波动和负载扰动具有较强的抗干扰能力。仿真表明,该整流器能获得单位功率因数的正弦输入电流、稳定的直流输出电压和快速的动态相应,能够实现能量的双向流动,是满足双馈风力发电机交流励磁要求的理想整流电源。
Introduced a new three-phase PWM voltage rectifier control scheme. The d-q model based on the vector control principle was used to construct the rectifier's input current and had the ability against the grid voltage and load perturbation. Sinusoidal input current with unit power factor, steady output DC-voltage and fast dynamic response, as well as bi-direction power flowing ability shown in the simulation process show that the converter is an ideal rectifying power supply for doubly fed wind AC-excited generator.