基于直轴电流定向的Vienna整流器不平衡及畸变电网电压无传感器控制策略

When grid voltage is unbalanced and distorted, the input current harmonics in Vienna rectifier will increase. To solve the issue, a grid voltage sensorless control strategy based on direct-axis current orientation is proposed for Vienna rectifier. In the reference frame, by ensuring that the reference voltage and the input current are in phase, the proposed strategy can avoid the separate operatio...