| Natural gas as a clean fuel is the inevitable trend of future marine engine development,and with natural gas engine and battery as power of the marine gas-electric hybrid system solved the acceleration of pure gas engine propulsion system performance insufficiency,the problem of poor stability,electric ship short navigation range.In this context,the marine gas electric energy flow path,the energy efficiency analysis,the influences on energy and energy management method were studied.First,the design concept of the marine gas-electric hybrid system is established using the parallel structure,by the natural gas engine,permanent magnet synchronous reversible motor,pneumatic clutch,gear box,lithium ion battery,propeller,etc.The simulink model of the system is established.On this base,analyses the energy efficiency of the energy efficiency.To research the use of energy in different work mode of gas-electric hybrid system,analyses the change rule of different state of SOC,the mixing degree of the power system energy consumption under E3 working condition.To research the influnce infactor of energy efficiency in different work mode of gas-electric hybrid system,analyses the change rule of different energy of the marine gas-electric hybrid system,permanent magnet synchronous motor efficiency,battery efficiency of the energy efficiency under E3 working condition. |
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