Title :
Research on the Control of the Cathode Gas Flow and Pressure of A Small PEM Fuel Cell
Author :
Xiong, Yingfei ; Deng, Xianrui
Author_Institution :
Lab of Complex Syst. & Intelligent Sci., Chinese Acad. of Sci., Beijing
Abstract :
In this paper, we firstly present a nonlinear model for describing the dynamic behavior of the cathode flow system of a small PEMFC fuel cell, and then the model is linearized around the nominal operating point. Based on this linearized model, the linear quadratic regulator optimal control method is applied to design the state feedback controller for realizing the control of the cathode gas flow and pressure simultaneously. Simulation results show that this method can effectively balance the two control objects between maintaining the oxygen excess ratio and keeping the change of the cathode gas pressure within the allowed range of the system when the load is changed
Keywords :
flow control; linear quadratic control; pressure control; proton exchange membrane fuel cells; state feedback; cathode gas flow control; dynamic behavior; linear quadratic regulator optimal control; nonlinear model; pressure control; small PEM fuel cell; state feedback controller; Automatic control; Automation; Cathodes; Fluid flow; Fuel cells; Intelligent systems; Linear feedback control systems; Optimal control; Pressure control; Regulators; Linear Quadratic Regulator optimal control; PEMFC Fuel Cell; nonlinear model;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1713468
