DC Bus Voltage Control of V2G Grid-connected Inverter Based on Improved Double Closed-loop
When the V2G bidirectional power converter is used as a grid connected inverter in discharge mode,it has the characteristics such as nonlinearity,strong coupling,and large load disturbance.It is difficult to achieve good control effect with traditional PI double closed-loop control.A self-disturbance rejection model predictive power control was proposed to address the issue of DC bus voltage control being susceptible to multi-source interference.The model predicted that power control was used as the inner power loop,and self-disturbance rejection control was used as the outer voltage loop;the use of linear active disturbance rejection control technology,which was more meaningful in engineering,and the reduction of order processing had reduced the complexity of the system;a comparative study was conducted on traditional PI double closed-loop,model predictive power control,and predictive power control using self-disturbance rejection models.The simulation results verify that the proposed improved dual closed-loop control strategy has better transient performance and stronger anti-interference performance under multi-source disturbances.
V2G grid-connected inverterDC bus voltagemodel predictive power controlfirst-order linear self-disturbance rejection controlmulti-source disturbance
万方数据
维普
