摘要
针对空冷型PEMFC发电系统工作温度对输出性能影响问题,通过实验手段研究工作温度对系统输出性能的最优特性。由于空冷型PEMFC发电系统温度控制对象所具有的非线性、时变等特点,提出基于自适应逆控制的空冷型PEMFC发电系统实时最优温度控制。其中,递推最小二乘在线辨识算法用于对非线性控制对象进行建模和在线校正,最小均方算法用于在线调整逆控制器的参数。在搭建的空冷型PEMFC发电系统测控实验平台上对控制方法的性能进行验证。实验结果表明:提出的控制方法能够在不同负载条件下实现对电堆最优温度实时跟踪。而且,提出的控制方法对PEMFC参数不敏感,可以应用于类似的空冷型PEMFC发电系统。
Aiming at the effect of operation temperature on the output performance of proton exchange membrane fuel cell （PEMFC） power generation system, the optimal characteristics of operating temperature for the output performance of the system were studied by experiments. As the object controlled by temperature of PEMFC power generation system had the peculiarities of nonlinearity, time variation, an optimal temperature control method for PEMFC generation system based on adaptive inverse control （AIC） was proposed. In AIC method, a reeursive least square （RLS） online identification algorithm was adopted to model and online adjust nonlinear control object. The least mean square （LMS） algorithm was used to online adjust the parameters of the inverse controller. The performance of the control method was verified on the serf-made test and control platform of the air-cooling PEMFC power generation system. The experiment results show that the optimal temperature of cell pile under different load can be effectively tracked by the proposed control method. Furthermore, the proposed control method is not sensitive to PEMFC parameters which can be easily applied to similar air-cooling PEMFC power generation system.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2017年第8期2168-2175,共8页
Acta Energiae Solaris Sinica
基金
国家科技支撑计划(2014BAG08B01)
国家自然科学基金(61473238
51407146)
四川省杰出青年基金(2015JQ0016)
关键词
质子交换膜燃料电池发电系统
最优温度特性
自适应逆控制
实时控制
proton exchange membrane fuel cell （PEMFC） power generation system
optimal temperature characteris- tic
adaptive inverse control（AIC）
real-time control
