A Simulation Study of Space Vector PWM Rectifier Based on PSCAD

摘要

The simulation method of three-phase voltage source rectifier(VSR) using the Space Vector pulse width modulation (SVPWM) and feedforward decoupling control strategy is studied in PSCAD. Firstly, the mathematical model of VSR under the rotating coordinates axis was set up; then discussed the realization of SVPWM in PSCAD, and designed a decoupling control system of VSR; lastly, compared the performance of SVPWM and SPWM rectifier, the simulation results proved the dual loop control strategy of VSR is correct, the SVPWM rectifier has the advantages of less Harmonic content .easier digital realization.