The invention discloses an energy management method and device for an oil-electricity hybrid power ship, and the method comprises the steps: obtaining a first power demand of the ship at a current moment, obtaining a fuel consumption function related to a control variable, taking the output power of a battery as the control variable, determining an optimal control variable based on the output power of the battery, and carrying out the energy management of the ship. Acquiring a second power demand of the ship at the previous moment, determining a torque demand of the ship based on the second power demand, and distributing a first torque corresponding to the engine and a second torque corresponding to the motor for multiple times according to the torque demand to obtain multiple torque combinations, then determining an optimal torque combination at the previous moment and a co-state variable corresponding to the optimal torque combination, optimizing the co-state variable to obtain an optimal co-state variable at the current moment, and determining the minimum total fuel consumption of the ship at the current moment according to the optimal control variable and the optimal co-state variable so as to perform energy management on the ship. Therefore, the fuel economy of the ship is improved.
本发明公开一种油电混合动力船舶的能量管理方法及装置,该方法为:获取当前时刻船舶的第一功率需求,获取与控制变量相关的燃油消耗函数,将电池输出功率作为控制变量,并基于电池输出功率确定最优控制变量,获取上一时刻下船舶的第二功率需求,基于第二功率需求,确定船舶的扭矩需求,根据扭矩需求,对发动机对应的第一扭矩与电动机对应的第二扭矩进行多次分配,得到多组扭矩组合,然后确定上一时刻的最优扭矩组合以及与最优扭矩组合对应的协态变量,优化协态变量,得到当前时刻的最优协态变量,根据最优控制变量和最优协态变量,确定船舶当前时刻的最小总燃油消耗量,以对船舶进行能量管理,从而提升了船舶的燃油经济性。
Energy management method and device for oil-electricity hybrid power ship
一种油电混合动力船舶的能量管理方法及装置
2023-01-13
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
New energy ship light-hydrogen-electricity hybrid power system management method
European Patent Office | 2023
|Energy management method and device for diesel-electric hybrid power ship
European Patent Office | 2023
|