0Voltage Oriented Control Strategy of Three Phase PWM Rectifier in Future-oriented Smart Charging Stations

The three-phase PWM rectifier is used in the future-oriented smart charging station to realize the bidirectional power flow and the suppression of harmonics injected into the grid. In order to improve the steady-state and dynamic performance of the three-phase PWM rectifier, this paper proposes a voltage-oriented control strategy. First, the basic principle of the three-phase PWM rectifier is analyzed, and its mathematical model in the abc and dq coordinate system is established. On this basis, a three-phase PWM rectifier control strategy based on grid voltage orientation is proposed, the dual closed-loop control the system is analyzed and the controller parameters are designed. Finally, the correctness of the analysis and the effectiveness of the proposed control strategy are verified through the steady-state and dynamic experiments.