Efficient Solar PV Fed EV Charger Using Active Ripple Cancellation and Soft‐Switched Interleaved DC‐DC Converter

ABSTRACT To ensure efficient operation of solar photovoltaic (PV) systems under varying environmental conditions, it is crucial to minimize its output current ripple. This work focuses on the development of an interleaved soft‐switched boost (ISSB) converter integrated with a ripple cancellation circuit, designed for solar PV‐powered on‐board electric vehicle (EV) charging applications. The proposed configuration promotes efficient transfer of solar PV current and power, thereby optimizing the performance of the EV charging system. A key innovation of this approach is the integration of the ripple elimination circuit (REC) with the ISSB converter, which significantly reduces the output current ripple without relying on the duty‐cycle control of the converter. Moreover, the REC removes the need for bulky electrolytic capacitors alongside the solar PV array. Compared to the conventional hard‐switched interleaved boost converter, the proposed system achieves an approximate 1.5% improvement in overall efficiency. The article also presents comparative evaluations against alternative methods, along with simulation and real‐time results to demonstrate the effectiveness of the developed system. Using Markov chain approach, reliability analysis and cost analysis have been performed. Also, its thermal performance and variation in its efficiency, soft switching, and ripple cancellation on parameter drift have been analyzed and found satisfactory within acceptable limits.