Research on the Ship Electric Propulsion System Network Power Quality with Flywheel Energy Storage

Flywheel energy storage has been widely used to improve the land-grid power quality. This paper has designed a flywheel energy storage device to improve ship electric propulsion system network power quality. The practical mathematical models of flywheel energy storage and ship electric propulsion system have been established. Simulation research on the effect of ship electric propulsion system power quality, made by flywheel energy storage, is completed by using the software Matlab/simulink. We have done a lot of simulation experiments on sudden load of ship integrated electric propulsion system, one system is with flywheel energy storage, another one is not with. Comparing with these simulation results, we can see that the flywheel energy storage designed in this paper has improved ship electric propulsion system network power quality as well as increases the reliability of the ship grid. The conclusions can provide a theoretical basis for the design of flywheel energy storage design applied in ship integrated electric propulsion system.