Modeling And Stability Analysis For Marine Electrical Propulsion System

Currently,decreasing of the global petrochemical resources and rising of fuel costs together lead to increasing ship operating expenses.The ship uses fossil fuels to generate electricity,and the emissions after burning pollute the environment greatly.People attach more importance to how to do well energy conservation and environmental protection of ship so as to effectively reduce operating costs of ship.Solar and wind power are two kind of non-polluting,renewable energy sources and their use of technology is the most mature,so they should therefore be used for vessel can reduce pollutant emissions.In this paper,the application of solar and wind energy on the ship will be analyzed and researched,and will be discussed mainly from the following aspects: Firstly,we will introduce the status and trends of solar and wind energy applications at home and abroad,and then analyze and summarize the feasibility of solar and wind energy applications on the ship.Secondly,through the analysis and research system of comprehensive utilization of ship's renewable energy,utilization system is designed for modular.we introduced the basic theory of the renewable energy utilization system,and based on the basic theory,we built their mathematical models for the necessary parts.Thirdly,Using PSCAD simulation software,we will build wind power system simulation model,photovoltaic power generation system simulation model,the battery charge and discharge circuit simulation model.And then,we will analyze and research this third-part simulation model.Finally,in the actual ship,the arrangement of wind power systems and photovoltaic power generation system was given.Based on the various parts of the model simulation,we will establish the entire simulation system and analyze it.Ships formed into new energy power system,analysis of the ship rolling to photovoltaic power generation system and the impact of wind power generation system.