Research on Three-phase Six-switch PFC Based on Fuzzy PI Control
A three-phase six-switch PFC control strategy based on a fuzzy PI controller is proposed,which ensures fast dynamic response performance and smooth transition of current waveforms under sudden load changes.According to the mathematical model of the three-phase six-switch PFC in two-phase rotating coordinates,the modulation strategy of SVPWM and the current loop feed-forward decoupling strategy,a fuzzy rule table is used to adjust the PI controller pa-rameters.A simulation model is built in MATLAB/Simulink for testing.The results show that the three-phase six-switch PFC maintains a power factor of 0.99,has a strong anti-interference capability,and improves the power quality of the input grid.
fuzzy PI controlon-board chargerthree-phase six-switchPFC
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