Model-based decoupling control for the thermal management system of proton exchange membrane fuel cells |
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| Affiliation: | 1. State Key Laboratory of Fluid Power & Mechatronic System, School of Mechanical Engineering, Zhejiang University, Hangzhou, China;2. College of Control Science and Engineering, Zhejiang University, Hangzhou, China;3. Jinhua HydroT Technology Co.Ltd, Jinhua, Zhejiang, China;4. School of Automation and Electrical Engineering, Zhejiang University of Science and Technology, China;1. School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China;2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;3. Multi-discipline Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;4. Northwest Institute for Nonferrous Metal Research, Shaanxi Key Laboratory of Biomedical Metal Materials, Xi''an 710016, China;1. College of Chemistry & Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China;2. Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China;1. Key Laboratory of New Opto-Electronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, People''s Republic of China;2. Anyang Center for Chemical and Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, People''s Republic of China;3. Department of Materials Sciences and Engineering, Islamic Azad University (Saveh Branch), Saveh, 9417764958, Iran;1. College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China;2. Zhicheng College, Fuzhou University, Fuzhou 350002, China |
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| Abstract: | As one of the most promising sustainable energy technologies available today, proton exchange membrane fuel cell (PEMFC) engines are becoming more and more popular in various applications, especially in transportation vehicles. However, the complexity and the severity of the vehicle operating conditions present challenges to control the temperature distribution in single cells and stack, which is an important factor influencing the performance and durability of PEMFC engines. It has been found that regulating the input and output coolant water temperature can improve the temperature distribution. Therefore, the control objective in this paper is regulating the input and output temperature of coolant water at the same time. Firstly, a coupled model of the thermal management system is established based on the physical structure of PEMFC engines. Then, in order to realize the simultaneous control of the inlet and outlet cooling water temperature of the PEMFC stack, a decoupling controller is proposed and its closed-loop stability is proved. Finally, based on the actual PEMFC engine platform, the effectiveness, accuracy and reliability of the proposed decoupling controller are tested. The experimental results show that with the proposed decoupling controller, the inlet and outlet temperatures of the PEMFC stack cooling water can be accurately controlled on-line. The temperature error range is less than 0.2 °C even under the dynamic current load conditions. |
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| Keywords: | Thermal management Decoupling control Proton exchange membrane fuel cells |
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