首页> 外文期刊>International Journal of Innovative Computing Information and Control >THE IMPEDANCE BASED FUZZY LOGIC CONTROL FOR THE CATHODE AIR FLOW OF A DIRECT METHANOL FUEL CELL SYSTEM
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THE IMPEDANCE BASED FUZZY LOGIC CONTROL FOR THE CATHODE AIR FLOW OF A DIRECT METHANOL FUEL CELL SYSTEM

机译:基于阻抗的直接甲醇燃料电池系统阴极气流的模糊逻辑控制

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摘要

In this study, a control strategy for direct methanol fuel cell (DMFC) systems is presented. By utilizing the specific impedance measurement, high frequency resistance (HFR) and charge transfer resistance (CTR), as the linguistic variable, this control strategy, based on the fuzzy logic, can distinguish the humidification conditions in a stack. Thus, with the efficient computation of the fuzzy controller, the stoichiometric flow for the air supply of the DMFC is varied to prevent the performance drops caused by flooding and drying. It is sufficient to assist the stack in reacting at an optimal operating state. Furthermore, this methodology reduces the measuring time of impedance and can real-time control the behaviors of a practical DMFC system. Although the influences of operating temperature on the state of system are not accounted, this fuzzy controller has the adaptability to run even if the stack is operated at various temperatures.
机译:在这项研究中,提出了直接甲醇燃料电池(DMFC)系统的控制策略。通过使用特定的阻抗测量,高频电阻(HFR)和电荷转移电阻(CTR)作为语言变量,这种基于模糊逻辑的控制策略可以区分堆中的加湿条件。因此,通过模糊控制器的有效计算,改变了DMFC的空气供应的化学计量流量,以防止由于水淹和干燥而导致的性能下降。足以协助烟囱以最佳操作状态进行反应。此外,这种方法可以减少阻抗的测量时间,并且可以实时控制实际DMFC系统的行为。尽管没有考虑工作温度对系统状态的影响,但是即使堆在各种温度下工作,该模糊控制器也具有运行的适应性。

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