Modeling and Validation of Input Impedance for Three-Phase PWM Rectifier for Aviation Applications

In aircraft power supply systems, due to the numerous converter modules, impedance mismatch issues between the power module and the load module can easily occur. The three-phase PWM rectifier is a high-power factor rectifier for future aviation applications. Studying its input impedance is of significant importance for investigating the stability of aircraft power supply systems. For the three-phase AC cascaded system, this paper focuses on the three-phase PWM rectifier, modeling its input impedance in open-loop and closed-loop modes. Additionally, real-time simulations using the Opal-RT platform are conducted to experimentally validate the theoretical model.