Iterative learning control of SOFC based on ARX identification model

作者：Huo Hai bo^*; Zhu Xin jian; Tu Heng yong

来源：Journal of Zhejiang University-Science A(Applied Physics & Engineering), 2007, 8(12): 1921-1927.

DOI：10.1631/jzus.2007.A1921

• autoregressive model with exogenous input (ARX)
• iterative learning control (ILC)
• solid oxide fuel cell (SOFC)
• identification

This paper presents an application of iterative learning control (ILC) technique to the voltage control of solid oxide fuel cell (SOFC) stack. To meet the demands of the control system design, an autoregressive model with exogenous input (ARX) is established. Firstly, by regulating the variation of the hydrogen flow rate proportional to that of the current, the fuel utilization of the SOFC is kept within its admissible range. Then, based on the ARX model, three kinds of ILC controllers, i.e. P-, PI-and PD-type are designed to keep the voltage at a desired level. Simulation results demonstrate the potential of the ARX model applied to the control of the SOFC, and prove the excellence of the ILC controllers for the voltage control of the SOFC.

• 出版日期2007-11
• 单位上海交通大学