A multilevel active rectifier based on series connection of asymmetrical H - bridge cells
نویسندگان
چکیده
Abstract. A novel multilevel active rectifier based on series connection of asymmetrical H-bridge cells is presented in this paper. The converter can generate seven voltage levels with eight power switches. However it can lead the output capacitor voltage unbalanced. Then PI controller has been applied to guarantee the output DC voltage in the outer loop. A proportion controller is used to control the inductance current in phase with the grid voltage and to reduce the harmonic feed to gird. All the methods have also been verified by the results of simulation and experiment.
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