Large- and Small-Signal Evaluation of Average Models for Multi-Pulse Diode Rectifiers

This paper analyses different average models of multi-pulse diode rectifiers. In the analysis a full-order and a simplified average model are compared to a detailed switching model. The main goal is to establish the validity of the simplified model. First the different models are discussed. Then the small and large signal evaluations of the models are presented. The input impedance frequency response of the models is used as basis for the small-signal evaluation. This parameter is important in the small-signal stability of the system. The large-signal evaluation is done by means of time domain simulations carried on with the different models. The results obtained indicate that the simplified average model can provide a good tool for the analysis of circuits using multi-pulse rectifiers

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