Abstract

Current regulator designing is the key step in high performance PWM rectifier controller designing. When switching frequency is about hundreds of hertz, conventional Bode diagram design method is not suitable. With the help of the discrete-time model of the current control loop and the bilinear transformation, the model can be transformed to a suitable form, and Bode diagram method can be used again to design the regulator parameters. The designing process is developed in this paper, and the result is verified by experiment.

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