A new feed-forward control strategy for three-phase voltage source PWM rectifier based on αβ transform

In order to meet the needs of the advanced fighter jet´s start by using a three phase AC/DC converter on the ground, predictive current control strategy is selected to design a feed-forward control strategy by αβ transform based on the power balance relationship between the input and output of rectifier. Feed-forward signal includes the information of both grid voltage and DC side load. Power balance between the input and output can be maintained by adjusting AC side currents. The principle and working process of the PS-FB-ZVS converter is studied in detail, and its small signal model is established and analyzed, and then the control system based on average current mode and a phase shift PWM generation method are designed. The results verify the proposed analysis and design.