家用混合发电系统的能量优化控制策略

家庭负载频繁出现瞬间的峰值功率需求,由燃料电池/蓄电池组成的混合发电系统是最清洁和高效的发电方式之一.燃料电池仅满足基本负载,由蓄电池放电以满足瞬间的峰值功率需求.研究了一个60 kW家用混合发电系统,该系统由质子交换膜燃料电池(PEMFC)和阀控铅酸蓄电池组成,设计为10个家庭同时供电.在保证系统可靠性和持久性的同时,为了提高整个混合发电系统的工作效率和燃料经济性,在系统仿真和分析的基础上详细描述了一种基于规则的能量优化控制策略.仿真实验结果表明,与燃料电池单独供电相比,60 kW混合发电系统通过优化2种能源之间的功率分配,能够在响应负载的同时提高整个发电系统的工作效率和燃料经济性.

An Optimal Power Control Strategy for the Domestic Hybrid Generator

As a typical domestic load frequently has instantaneous peak power demands, the fuel cell/battery hybrid generator is one of the cleanest and highly effective power generating methods. The fuel cell only supplies the base load whereas the battery supplies the peak load. A 60 kW hybrid power generator is investigated, which is composed of a proton exchange membrane fuel cell (PEMFC) and a sealed valve regulated lead acid battery and designed for the power supply of ten homes. While guaranteeing the durability and the reliability of the system, a rule-based optimal power control strategy for the hybrid generator is proposed based on generator simulation and analysis to improve the net efficiency and fuel economy. The simulation results show that the 60 kW hybrid system, by optimizing the energy flow between the two resources, can improve the fuel economy and the efficiency of the entire generator compared to the fuel cell generator alone.