Fuzzy control of hydrogen pressure in fuel cell system. (29th March 2019)

• Record Type: Journal Article
• Authors: Ye, Xichen; Zhang, Tong; Chen, Huicui; Cao, Jing; Chen, Junjian
• Is Part Of: International journal of hydrogen energy. Volume 44:Number 16(2019)
• Page Start: 8460
• Page End: 8466
• Publication Date: 2019-03-29
• Subjects: Fuel cell system -- Hydrogen pressure -- Fuzzy control; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2019.02.020
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Precise control of hydrogen pressure is crucial for the performance and durability of fuel cell systems. With the widely used common-rail injection system, traditional PID controller still dominates. For a long time, the hydrogen pressure fluctuates acutely when hydrogen purge valve switches or load sharply changes with using PID controller. In recent studies, several new control strategies are presented. However, mostly of them are theoretical and experimental. In this study, an improved common-rail injection system, hydrogen injector/ejector assembly is introduced. Based on a real fuel cell system, a Mamdani fuzzy controller is designed to regulate the hydrogen pressure. The algorithm of fuzzy controller is explained in detail. A comparative study is carried out between fuzzy controller and PID controller. According to the results, the stability of hydrogen pressure with using fuzzy controller is better than using PID controller. This research could be useful for the control of fuel cell system. Highlights: The characters of hydrogen pressure's fluctuation was studied. A Mamdani-type fuzzy control system was designed to controller the hydrogen pressure in fuel cell system. The algorithm of the fuzzy controller was introduced in detail. The controller was proved to be valid and effective for real fuel cell systems. A comparative study is carried out between fuzzy controller and PID controller.