An Adaptive and Multifunctional DC-DC Converter for Onshore Ship Charging

Maritime electrification is a critical upgrade to enable sustainable and environmentally friendly shipping. Therefore, in recent years, there has been a significant interest in the development of battery-based boats and ferries. A key element for the reliable operation of these vessels is the onshore charging interface. Unlike in electric cars, the onboard power system and the operating voltage in different vessels can vary over a significantly large range. Therefore, the development of a multi-functional charging unit can be challenging. This paper proposes a new power electronics converter that comprises an adaptable charging interface that can operate efficiently over a very wide range of output voltage, and deliver power to different vessels. Simulation results are presented to illustrate the operation of the proposed circuit.