定子双绕组感应发电系统的滞环电流控制方法

提出了一种基于空间电压矢量的适用于定子双绕组感应发电系统的滞环电流控制新方法.该方法将滞环控制与空间电压矢量PWM控制相结合,根据控制绕组的电流误差矢量与参考空间电压矢量的区域分布,选择最佳的电压矢量运行,使各相电流误差被限定在给定滞环内,准确跟踪各相给定电流,实现静止励磁控制器三相桥臂间的关联控制,消除相间影响.该方法实现简单,即能限制开关频率,又能有效减小电流误差,改善电流跟踪性能.实验结果证明了该方法的正确性和有效性.

Hysteresis current control method for the dual stator-winding induction generator system

A hysteresis current control method for the dual stator-winding induction generator(DWIG) system based on space voltage vector is presented in this paper.This method combines hysteresis control and space voltage vector PWM control.According to regional distributions of the control-winding current error vector and the given reference space voltage vector,the best voltage vector switching was chosen to limit the current error below the hysteresis width and realize the accurate current tracking.These achieved the association control between three-phase bridge arms of the static excitation controller(SEC) on the control-winding side and eliminated the phase-to-phase impact.The proposed method is realized simply,not only limiting the switching frequency,but reducing the current error effectively and improving the current tracking performance.Experimental results verify the validity and effectiveness of the proposed method.