基于混合级联H桥多电平单元的低开关频率整流器改进

Due to device losses and heat dissipation, single-phase rectifiers in high-speed railways are operated at low-switching frequencies. Harmonic resonance in the traction power supply substation is mostly caused by the low-frequency switching harmonics. In this article, a hybrid cascaded H-bridge multilevel rectifier is proposed to improve the overall performance by cascading a high-frequency switchi...