An improved predictive current controlled three phase voltage PWM rectifier

In this paper, an improved predictive current controlled three phase voltage source pulse width modulation (PWM) rectifier was described. This method was based on the discrete mathematical model. The desired ac-side current was predicted according to minimizing power errors target function in a fixed time interval. This control system realized fast tracing by selecting switching states based on the principle of space vector modulation (SVM). The simulation results verify a satisfactory performance of the system with nearly unity power factor, low total harmonic distortion (THD), fast dynamic responses and strong robustness.