考虑电解槽和蓄电池寿命衰减特性的分布式电热氢系统优化调度策略

Optimal scheduling strategy of distributed electric-thermo-hydrogen system considering lifetime decay characteristics of electrolytic cell and battery

可再生能源的强波动性会导致分布式电热氢系统中电解槽和蓄电池的寿命衰减加速,为了在提高分布式电热氢系统经济性的同时延长电解槽和蓄电池的使用寿命,提出一种考虑电解槽和蓄电池寿命衰减特性的分布式电热氢系统优化调度策略。分析电解槽和蓄电池的寿命衰减特性,建立电解槽和蓄电池的寿命衰减模型;以综合提升分布式电热氢系统中电解槽和蓄电池寿命以及系统经济性为优化目标,建立考虑电解槽和蓄电池寿命衰减特性的分布式电热氢系统优化调度模型,并利用场景生成法处理可再生能源和负荷的不确定性。以一个包含多种能量转换和存储设备的分布式电热氢系统为例进行仿真,结果验证了所提策略的有效性。

The strong fluctuation of renewable energy will lead to the life decay acceleration of electrolytic cell and battery in the distributed electric-thermo-hydrogen system.In order to extend the service life of electrolytic cell and battery while improve the economy of distributed electric-thermo-hydrogen system,an optimal scheduling strategy for distributed electric-thermo-hydrogen system is proposed considering the life decay characteristics of electrolytic cell and battery.The life decay characteristics of electrolytic cell and battery are analyzed,and the life decay models of electrolytic cell and battery are established.Taking the comprehensive improvement of the life of electrolytic cell and battery and the system economy in the dis⁃tributed electric-thermo-hydrogen system as the optimal object,an optimal scheduling model of distributed electric-thermo-hydrogen system considering the life decay characteristics of electrolytic cell and battery is established,and the scenario generation method is used to deal with the uncertainty of renewable energy and load.A distributed electric-thermo-hydrogen system containing a variety of energy conversion and sto-rage devices is taken as an example for simulation,and the results verify the effectiveness of the proposed strategy.