由于负载波动导致混合动力船舶存在燃料电池电能质量下降及蓄电池使用寿命缩短的问题，因此，针对该问题首先对船舶动力系统进行模拟改装。采用超级电容、磷酸铁锂电池构成复合储能系统，设计基于小波包及模糊控制的能量控制策略，通过搭建动力系统及能量控制策略的Simulink仿真模型对所提控制策略有效性进行验证。仿真结果表明，该控制策略能够有效地优化电池充放电过程，延长电池使用寿命、降低燃料电池输出功率的波动及稳定母线电压提高电能质量。
Due to the load fluctuation, the hybrid ship has the problems of fuel cell power quality degradation and battery life shortening. Therefore, in order to solve this problem, the ship power system is simulated and modified firstly, and the composite energy storage system is composed of super capacitor and lithium iron phosphate battery. Secondly, an energy control strategy based on wavelet packet and fuzzy control is designed for the improved power system. Finally, the effectiveness of the proposed control strategy is verified by building the simulink simulation model of power system and energy control strategy. The simulation results show that the control strategy can effectively optimize the battery charging and discharging process, prolong the service life of the battery, reduce the fluctuation of the fuel cell output power and stabilize the bus voltage to improve the power quality.
2023,45(19): 130-136 收稿日期：2022-09-06
DOI：10.3404/j.issn.1672-7649.2023.19.023
分类号：U664.1
基金项目：国家自然科学基金重点项目(U1709215)
作者简介：闫立(1997-),男,硕士研究生,研究方向为混合动力船舶能量控制策略
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