基于非线性补偿的PEMFC温度积分控制  

PEMFC TEMPERATURE INTEGRAL CONTROL BASED ON NONLINEAR COMPENSATION

作　　者：陈凤祥[1,2] 王士嘉[1,2] 高昆鹏[1,2] 

机构地区：[1]同济大学汽车学院,上海201804 [2]同济大学新能源汽车工程中心,上海201804

出　　处：《太阳能学报》2014年第12期2444-2447,共4页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(61104077);教育部博士点基金(20090072120025)

摘　　要：基于非线性补偿技巧和平衡点线性化方法将PEMFC温度动态系统简化成线性系统。针对获得的受扰线性系统,采用前馈控制对电堆电流的扰动进行有效消除,再利用状态反馈技术进行系统的镇定。考虑到前馈+状态反馈并未能有效消除系统的稳态误差,为此将积分控制融合到状态反馈控制器中,最终消除系统的稳态误差。最后,数值仿真结果亦表明了所提算法的有效性。Temperature dynamics of PEMFC is featured with the strong couple between input and state variables. The PEMFC temperature dynamical system was simplified to linear control system via nonlinear compensation technique and linearization in equilibrium point. For the derived system, feed-forward control was used to attenuate the external disturbance （the current of stack）, and state feedback technique was used to stabilize the system. Additionally, integral control was also adopted due to the former controller could not eliminate the stable error well. Finally, the proposed controllers were validated by numerical simulation as well.

关 键 词：质子交换膜燃料电池(PEMFC) 电堆温度 非线性补偿 前馈 积分控制 

分 类 号：TM911.42[电气工程—电力电子与电力传动]