Research On Optimal Matching Of Renewable Energy Power Generation System And Ship Power System

With the continuous improvement of ship emission standards,the application of renewable energy power generation system in ships has attracted more and more attention from all walks of life.How to realize the comprehensive utilization of various energy sources,improve the renewable energy utilization rate and system economy,it is of great significance to provide reference for engineering application of actual ship.This paper mainly studies the matching problem and optimization of renewable energy power generation system and ship power system.Firstly,the application status and development trend of renewable energy in ships at home and abroad are summarized,and the feasible methods of using renewable energy in ships are analyzed.The research status of optimal allocation of hybrid power generation system is summarized and analyzed.Then,the theoretical model and related technology of each module in the renewable energy ship power system are studied.Secondly,the simulation models of renewable energy power generation system and ship power system are built in PSCAD software,including wind turbine,fuel cell,photovoltaic array,battery,diesel generator and other models,and the correctness of each model is verified by simulation.The grid-connected simulation analysis of renewable energy power generation system is completed,and the influence of load change on the whole renewable energy ship power system is considered.The simulation results meet the system design requirements.Finally,a capacity optimization method considering reliability and economy is proposed for the ship power system with wind-photovoltaic-diesel-battery hybrid power generation system.Considering the natural conditions and the actual situation of the ship in advance,the mathematical models of each micro power source are established respectively.On this basis,the objective function including the annual average cost of the system and the reliability index of the system is established,and the corresponding constraint conditions are determined.Then,the optimal configuration scheme of the micro power source is programmed in the corresponding software environment,and particle swarm optimization algorithm and improved algorithm are used to optimize and solve the configuration problem.The results show that the optimized ship power station can not only meet the reliability of system power supply,but also realize the economic cost saving.