Study on speeding performance of power propulsion system with the integration of AC and DC

摘要

In order to reduce the weight and size of vessel integrated power system (VIPS), the AC-DC integrated propulsion system was studied. The system mainly consists of double winding synchronous generators (DWSG) and the DC propelling motor. DWSG supplies both AC and DC power simultaneously. The mathematic models of the main components were presented. Expressions for DWSG and the computation method were deduced. Simulations of system static and dynamic performance were undertaken in PSCAD, and experimental verification of the proposed system obtained on the test bed of double winding generators was performed. It is shown that the system runs well within the given speeding range. Comparisons of simulating and experimenting results show the feasibility of the system within given speeding range and demonstrate the validity of the foundation method in the simulation model built in PSCAD.