Robust Feedback Linearizing Controller Design for DC Microgrid Connected DC-DC Converter

Abstract

A nonlinear partial feedback linearizing controller is proposed in this paper for a DC microgrid connected DC-DC boost voltage source converter. The characteristics model of the DC-DC converter is developed considering transmission line losses and dynamics. A conventional PD controller and a robust H∞controller is designed for a partially linearized model of the DC microgrid connected DC-DC voltage source converter system. The performance of the PD and the H∞controller are investigated for partial feedback linearized model of the proposed system under load change at common DC-bus in the microgrid.