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.
关键词
V2G并网逆变器/直流母线电压/模型预测功率控制/一阶线性自抗扰控制/多源干扰
Key words
V2G grid-connected inverter/DC bus voltage/model predictive power control/first-order linear self-disturbance rejection control/multi-source disturbance
维普
万方数据