Implementation of a controlled rectifier using AC-AC matrix converter theory

Current optimum PWM (pulse-width-modulation) strategies are often difficult to physically implement or not easily extended to regenerative operation. The authors propose an alternative PWM strategy based on current AC-AC matrix converter theory, which generates only high-order switching harmonics, presents a unity power factor load to the supply, implicitly extends to regeneration (and operation with a center-tapped DC output), and is feasible to physically implement for real-time output voltage control. Both the theory and physical simulation results are presented