Investigation of the behaviour of a high step-up DC/DC converter used in a Waste Heat Recovery System for marine applications

In this paper, an investigation of the behaviour of a high step-up DC/DC converter is conducted as an application in a Static Waste Heat Recovery System (SWHRS) for ships with DC bus. It is proven that a higher step-up ratio can be achieved with the proposed DC/DC converter compared with that of a classical step-up converter, even in a high power level. Also, analysis of the proposed Waste Heat Recovery System shows that the ship loads can be supplied by both Diesel Generators and this SWHRS, leading to a greener ship with lower fuel consumption and less gas emissions.