Single-phase serial AC voltage controller based on bipolar PWM AC matrix-reactance chopper

This paper deals with a new solution for a single-phase serial AC voltage controller. In this converter the bipolar PWM AC matrix-reactance chopper (MRC), based on cuk B2 topology and auxiliary transformer, are applied. The MRC applied in this controller make possible the bipolar voltage conversion with magnitude of voltage transformation function greater than one. The peak voltage detection method in the control circuit is applied to fast control of the load voltage changes. The paper presents a detailed description of the controller. The steady state theoretical analysis based on an averaged model of the presented controller is used. Furthermore, simulation and experimental test results of 3 kVA models are provided to confirm and verify the theoretical approach