基于最优占空比模型预测控制的无电解电容Vienna整流器中点电压波动抑制

To enhance the lifespan of Vienna rectifiers, the electrolytic capacitors in the dc link can be substituted with slim-film capacitors. However, the decrease in capacitance leads to an increase in neutral point (NP) voltage fluctuation and input current harmonics. To solve this issue, a model predictive control strategy based on three-vector duty cycle optimization is proposed. The negative influen...