LPV Gain-scheduling Control for a Phase-shifted PWM Full-bridge Soft Switched Converter

This paper presents an output feedback LPV gain-scheduling control design for a class of PSPWM full-bridge power converters. The design starts with an averaged model of the converter with adequate complexity. One main contribution of this work is to demonstrate how to reformulate the averaged model into an LPV one. A gain-scheduling controller can then be synthesized taking advantage of the design framework of LPV-based H-infinity control. Forming the open-loop LPV system and synthesizing the controller, a repetitive control module and an anti-windup scheme are incorporated into the design. The proposed design is further justified with a numerical simulation.