Energy management of marine hybrid power system coupled with composite storage devices
Targeting on a parallel marine hybrid power system coupled with composite storage devices,based on Mat-lab/Simulink,build the model of the system,containing marine engine,reversable motor,battery,super-capacitor and power converter,on which the logical-rule-based energy management strategy is carried.Simulation is performed on different ini-tial state-of-charge of the battery of a diesel-only system,a diesel-battery hybrid system and the diesel-battery-supercapacit-or hybrid system on a typical working condition of a tugboat,aiming at their engine fuel consumption,equivalent fuel con-sumption,system overall fuel consumption and nitrogen-oxide emission.Results indicate that the overall fuel consumption of the diesel-battery-supercapacitor hybrid system is 6.63％lower than that of the diesel-only system,and the fuel-saving rate of the diesel-battery-supercapacitor hybrid system is 11％higher than that of the diesel-battery hybrid system,and the nitrogen-oxide emission of the diesel-battery-supercapacitor hybrid system is 8％lower than that of the diesel-battery hybrid system.
万方数据
维普
