Robust integral sliding mode controller design of a bidirectional DC charger in PV-EV charging station Online publication date: Tue, 27-Apr-2021
by Youssef Cheddadi; Zakariae El Idrissi; Fatima Errahimi; Najia Es-sbai
International Journal of Digital Signals and Smart Systems (IJDSSS), Vol. 5, No. 2, 2021
Abstract: The charging infrastructure is developed and extended simultaneously with the considerable growing of electric vehicle fleet. In this paper, the problem of controlling an energy storage unit used in the photovoltaic charging station for electric vehicles is considered. The purpose is to design a robust control of a bidirectional DC-DC converter in order to ensure a perfect tracking of the battery current to its reference, and an asymptotic stability of the closed-loop system. For this reason, a robust integral sliding mode control is designed to regulate the current considering the output voltage of DC bus is regulated. The vehicle to grid concept is guaranteed using the bidirectional converter that interface between the energy storage unit and the EV battery. The formal analysis and simulation results are shown that the designed integral sliding mode controller was found to be robust and stable without steady-state errors, which matches all the objectives.
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