A Review of Fault Diagnosis Methods for Marine Electric Propulsion System

With the rapid development of power electronics technology and the proposal of intelligent ships, electric propulsion systems on ships are becoming more and more widespread. As the power source for ship navigation, timely and accurate diagnosis and prediction of faults of electric propulsion system play a vital role in the operation safety of ships. This paper summarises the common faults of electric propulsion systems, reviews the latest developments and applications of fault diagnosis techniques based on fault signal analysis in electric propulsion system fault diagnosis, and discusses the advantages and disadvantages of typical methods in the light of the latest literature and current research problems. The paper concludes by proposing future trends in fault diagnosis and prediction for ship electric propulsion systems.