On the Conceptual Design and Performance of a Matrix Converter for Marine Electric Propulsion

Abstract

Marine electric propulsion systems in ships commonly use power electronic converters to drive variable-speed electrical propulsion motors connected to propellers. Several types of power electronic converter are used, each having advantages and disadvantages, so choice becomes a compromise between steady-state and dynamic performance, efficiency, volume and weight, redundancy, and cost. This paper considers a power electronic converter topology known as the matrix converter, evaluating its design and potential operating performance in a marine electric propulsion system, thereby allowing comparisons to be made against other power converter types to establish whether the matrix converter topology has the potential to offer improved operational performance to make investment in its development as a marine propulsion converter worthwhile.