船舶并联式气电混合动力系统能量效率分析
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摘要
为提高船舶系统能效,提出一种船舶并联式气电混合动力系统方案,在Simulink平台上建立系统的仿真模型。结合实例对蓄电池的储能效率进行分析,得到该系统在E3循环、不同功率比下天然气发动机的燃气消耗和电动机的效率,从部件效率、总能量效率和总能量效率提升率3个方面对系统能量效率进行研究。结果表明,该系统在转速100%、功率100%和转速91%、功率75%工况下机械推进模式能量效率高,在转速80%、功率50%工况下电力推进模式能量效率高,在转速63%、功率25%工况下大功率比并联推进模式和电力推进模式能量效率高。
In order to improve the efficiency of the ship system, a marine parallel gas-electric hybrid system scheme is proposed and a system simulation model on the Simulink platform is established. By analyzing the energy storage efficiency of the battery with examples, the gas consumption of the natural gas engine and the efficiency of the motor in the E3 cycle and different power ratios are obtained. The energy efficiency of the system is studied in terms of the components efficiency, the total energy efficiency and the increased total energy efficiency. The results show that the system has high energy efficiency in the mechanical propulsion mode under the conditions of 100% speed & 100% power, 91% speed & 75% power, the system has high energy efficiency in the electric propulsion mode under the conditions of 80% speed & 50% power, and the system has high energy efficiency in the high power ratio parallel propulsion and electric propulsion mode under the conditions of 63%speed & 25% power.
In order to improve the efficiency of the ship system, a marine parallel gas-electric hybrid system scheme is proposed and a system simulation model on the Simulink platform is established. By analyzing the energy storage efficiency of the battery with examples, the gas consumption of the natural gas engine and the efficiency of the motor in the E3 cycle and different power ratios are obtained. The energy efficiency of the system is studied in terms of the components efficiency, the total energy efficiency and the increased total energy efficiency. The results show that the system has high energy efficiency in the mechanical propulsion mode under the conditions of 100% speed & 100% power, 91% speed & 75% power, the system has high energy efficiency in the electric propulsion mode under the conditions of 80% speed & 50% power, and the system has high energy efficiency in the high power ratio parallel propulsion and electric propulsion mode under the conditions of 63%speed & 25% power.
引文
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[2]卢瑞军,周志勇,武宪磊.船舶天然气发动机关键技术发展及应用[J].内燃机与动力装置,2014,31(3):57-60.
[3]MINAMI S,TOKI T.A Newly Developed Plug-in Hybrid Electric Boat[J].Journal of Asian Electric Vehicles,2010(8):1385-1392.
[4]ZAHEDI BIJAN.Shipboard DC Hybrid Power Systems[D].Trondheim:Norwegian University of Science and Technology,2014.
[5]JASTER T,ROWE A,DONG Z M.Modeling and Simulation of a Hybrid Electric Propulsion System of a Green Ship[J].Hybrid Electric Vessel,2014:1-6.
[6]席龙飞,张会生.小功率内河船舶油电混合动力系统的建模及仿真研究[J].机电设备,2014(2):23-27.
[7]王庆丰,张彦廷,肖清.混合动力工程机械节能效果评价及液压系统节能的仿真研究[J].机械工程学报,2005,41(12):135-140.
[8]ISO.Reciprocating Internal Combustion Engines-Exhaust Emission Measurement-Part 4:Steady:ISO 8178-4-2007[S].2007.
[9]汤天浩,韩朝珍.船舶电力推进系统[M].北京:机械工业出版社,2015:14-17.
[10]V?LKER T.Hybrid Propulsion Concepts on Ships[C]//Papers of 33rd International Scientific Conference"Science in Practice".2015.