This paper presents a study of fault-tolerant control strategy for a Voltage Source Inverter (VSI) driven Double Star Induction Machine (DSIM) under open-circuit faults. This machine and drive are used as the main propulsion system for an Electric Naval Propulsion System (ENPS). Firstly, modeling of the different system parts is developed. Then, a fault-tolerant control strategy is presented. Finally, simulation results are carried out to investigate the accuracy and the performance of the studied control strategy for the ENPS following a real navigation profile.