Computer Simulation Study On Integrated Full Electric Propulsion

Marine integrated full electric system, which is designed to combine two main systems of present marine platform: power system and electric propulsion system, and to realize the integral utilization of electric energy and the integration of power supply and electric propulsion, includes a large number of new technologies. The system is not a simple combination of the power supply system and the electric propulsion system, but a comprehensive system of them, from a point of view of consideration of the whole vessel energy. Emulation of the power system and propulsion system for some ship with full electric propulsion is committed. The purpose is to confirm conditions and indexes that guarantee reliable power energy and electric propulsion to all power consuming devices, through researching of steady and dynamic performances of marine power system and propulsion system under all sorts of working conditions, to provide design process with theoretical judgment.The transient analysis of the stability of marine integrated full electric propulsion system, which includes the building of mathematical model and programming of numerical simulation, is a large subject with many tasks. The characteristics of the system components that constitute the marine integrated full electric propulsion system, including generators, excitation adjusters, speed governors, loads, propulsion motors and electric circuits, are analyzed, and the mathematical model is built in this paper. The paper analyzes the transient stability of marine integrated full electric propulsion system, and the stimulation program of the system is designed, based on the analysis, to research the running of generators in parallel in the conditions of sudden loading and unloading, and the calculation, analysis and results are done by MATLAB.The result of the simulation has it clear that the data of imitating are the same as the ship's and that the model are correct.