The invention relates to an energy management method of a hybrid power ship. The energy management method comprises the steps of obtaining a load power demand of the ship and an evaluation value of a lithium battery in the ship; when the evaluation value is larger than the first threshold value and smaller than the second threshold value, the low-frequency part and the high-frequency part of the load power requirement are input into a power control unit of the fuel cell and a power matching unit of the lithium battery respectively; wherein the power control unit controls the fuel cell to output first constant power, the first constant power is not smaller than the power of the low-frequency part required by the load power, and the power matching unit controls the lithium battery to output the power of the high-frequency part required by the load power. According to the energy management method, on the basis of the evaluation value of the lithium battery in the ship, the fuel battery and the lithium battery are matched for power output, and power supply of the hybrid power ship is guaranteed. And meanwhile, the fuel cell outputs at constant power, so that the output fluctuation of the fuel cell is effectively inhibited, the fuel cell can be protected, and the service life of the fuel cell is prolonged.
本发明涉及一种混合动力船舶的能量管理方法,包括:获取船舶的负载功率需求与船舶中锂电池的评价值;当评价值大于第一阈值且小于第二阈值时,将负载功率需求的低频部分与高频部分分别输入至燃料电池的功率控制单元与锂电池的功率配比单元;其中,功率控制单元控制燃料电池输出第一恒定功率,第一恒定功率不小于负载功率需求的低频部分的功率,功率配比单元控制锂电池输出负载功率需求的高频部分的功率。上述能量管理方法,基于船舶中锂电池的评价值,使燃料电池与锂电池配合进行功率输出,保障混合动力船舶的电力供应。同时,燃料电池以恒定的功率输出,有效的抑制了燃料电池的输出波动,能够对燃料电池进行保护,延长了燃料电池的使用寿命。
Energy management method for hybrid ship
混合动力船舶的能量管理方法
2022-10-04
Patent
Electronic Resource
Chinese
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