Twelve-pulse Rectifier Circuit Based on the PSIM Simulation Software

摘要

This paper took the phase-controlled rectifying circuit as the research object to introduce the working principle of the three-phase rectifier circuit. Based on the PSIM software to build the circuit, this paper analyzed the working condition of the rectifier circuit under various common fire angles by taking the twelve-pulse rectifier circuit as the example and then compared the difference of the output voltage harmonic between the six-pulse rectifier circuit and twelve-pulse rectifier circuit via FFI. The PSIM simulation results showed that the twelve-pulse in series can reduce the pulsating component of the output voltage, decrease the current harmonics through the loads and then improve the power factor to some extent.