王毅.多绕组变压器 变流器结构中高频谐波分析与抑制[J].电测与仪表,2017,54(9):. wangyi.High frequency harmonic analysis and suppression of multi-winding transformer with inverter structure[J].Electrical Measurement & Instrumentation,2017,54(9):.
多绕组变压器 变流器结构中高频谐波分析与抑制
High frequency harmonic analysis and suppression of multi-winding transformer with inverter structure
Multi-winding transformer H-bridge converters is a typical topology in high-voltage and high-capacity power electronic applications. Based on the analysis about the high frequency characteristics of a PWM controlled H-bridge and the high frequency equivalent model of the topology, the theoretical foundation of how carrier phase-shift control suppresses high frequency harmonics is derived, and a broader rule of carrier phase-shift angle are provided. The results of experiments prove that with the appropriate carrier phase-shift angle, the high frequency harmonic can be suppressed to a low level, when there is no filler at the port of H-bridge. And the conclusion of this paper can be applied to the three-phase system.
