Modeling of three-phase controlled rectifier using a DQ method

Power converter models are normally time-varying because of their switching behaviors. This paper presents the DQ modeling method to eliminate the switching action to achieve time-invariant model. The power system studied is the AC distribution system. The small-signal model of the power system is obtained by using a linearization technique. The small-signal simulations are used to validate the DQ linearized model. The results show that an excellent agreement between the mathematical model and the three-phase benchmark model is achieved.

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