基于实时小波变换的燃料电池混合动力船舶能量管理策略

Energy management strategies for fuel cell hybrid ships based on real-time wavelet transform

  • 摘要:
      目的  针对负载剧烈波动导致燃料电池混合动力船舶的燃料电池寿命缩短与电能质量下降等问题,提出一种基于实时小波变换的燃料电池混合动力船舶能量管理策略。
      方法  通过对功率信息进行分频处理,使各电源依据自身特性承担相应部分。以某燃料电池混合动力渡船为目标船型,搭建Simulink仿真模型对所提出的算法进行验证。
      结果  结果表明,燃料电池承担了功率负载的稳定部分,超级电容承担了功率负载波动的高频部分,而电池承担了功率负载波动的低频部分。
      结论  所提出的算法能使混合动力船舶的燃料电池/电池的寿命延长,并提高电能质量。

     

    Abstract:
      Objectives   Aiming at the influence of load fluctuation on the fuel cell life and power quality of a fuel cell hybrid ship, an energy management strategy based on real-time wavelet transform is proposed.
      Methods  By the frequency division processing of the power demand signal, each electrical power source undertakes the corresponding frequency part of the power demand according to its own electrical characteristics. Taking a fuel cell ferry as the target ship, a hybrid power system model simulation is built to verify the proposed algorithm.
      Results  The experimental results show that this method canbe applied to fuel cells.
      Conclusions  The proposed algorithm can prolong fuel cell/battery life and improve the power quality of a hybrid electric ship.

     

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