摘要
针对质子交换膜燃料电池输出特性不稳定问题,设计了一种以升压电路为主电路,联合脉冲激发的开关控制器为控制电路的直流-直流电压变换器。依据质子交换膜燃料电池原理,搭建出额定功率为35 k W的车用质子交换膜燃料电池堆模型,并验证了模型的有效性和可操作性。为了验证所设计变换器的控制效果,将35 k W质子交换膜燃料电池堆与直流-直流电压变换器进行了联合仿真。仿真结果表明:所设计的直流-直流电压变换器0.4 ms就能将电压稳定且误差控制在1.2%以内,能够很好地满足车用质子交换膜燃料电池堆对升压和稳压的要求。
In view of the unstable output characteristic of the proton exchange membrane fuel-cell( PEMFC),a direct current( DC)-DC voltage converter model was designed. The main circuit adopted the boost circuit and the control circuit adopted the combined pulse excitation switch controller. According to the principle of PEMFC,a rated power of 35 k W PEMFC stack model was designed,and its effectiveness and operability were verified. The 35 k W PEMFC stack and the DC-DC voltage converter were jointly simulated to verify the control effect of the DC-DC voltage converter. The results show that the DC-DC voltage converter can boost voltage in0. 4 ms and control the error within 1. 2%. So the requirements of boosting and stabling voltage to PEMFC stack are well satisfied.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2016年第2期38-42,共5页
Journal of Henan University of Science And Technology:Natural Science
基金
国家"863"计划基金项目(2012AA110305)
