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In this paper, a model predictive current control (MPCC) strategy with a fixed switching frequency to control the dual boost bridgeless power factor corrected (PFC) converter is proposed. The improved MPCC strategy solves the problem of filter design and the high electromagnetic interference (EMI) which caused by the traditional MPCC. With the consideration of a nonlinear inductor, a formula is fitted to represent the change of the inductance, and the improved strategy has strong robustness. The simulation and experiment shows that the quality of current and power factor of the system is improved by the proposed control strategy.

Model Predictive Current Control with a Fixed Switching Frequency for Power Factor Corrected Rectifiers in Microgrid