摘要
空冷型质子交换膜燃料电池具有结构简单、自身能耗低等特点,在便携式电源研究领域有着良好的应用前景。本文通过实验研究环温和负载变化对电堆工作温度的影响关系,揭示温度和湿度特性对电堆输出性能的影响规律。通过建立基于遗传算法优化的温度特性模型,应用模糊-PID融合算法,设计电堆温度控制器,以及根据各电流输出段的湿度特性,采用不同方式控制尾气排放周期,最终保证电堆输出性能最优。
Air-cooling PEMFC,that is of some advantages such as simpler structure,lower energy consumption and so on,has good potential for the application in the fields of portable power sources.In this paper,the experiments are designed to study the effect of load and environment temperature on the operation temperature of PEMFC stack,and to find out that of operation temperature and humidity on its output performance.A model based on genetic algorithm is established for temperature characteristic,and fuzzy-PID fusion control algorithm is used for the design of temperature controller.And finally,to make sure the optimum performance of PEMFC stack output,several different modes are adopted to control the cycle of exhaust emission,according to the humidity features at various output current.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2010年第5期1293-1300,共8页
CIESC Journal
基金
浙江省自然科学基金项目(Y1080918)~~
关键词
空冷型质子交换膜燃料电池
温度特性
湿度特性
输出性能
控制
air-cooling PEMFC
temperature characteristic
humidity characteristic
output performance
control
