一种用于维也纳整流器、降低开关损耗与电流畸变的改进型载波PWM调制策略

Carrier-based discontinuous pulsewidth modulation (PWM) is widely used in three-level ac/dc converters due to its features of higher efficiency and simpler implementation. However, the problems of switching losses, current distortion around zero-crossing points, and neutral-point (NP) voltage fluctuation are mutually coupled for the Vienna rectifier. Therefore, this article proposes a modified car...