高压燃料电池发动机进气压力控制试验研究

Experimental Research on Intake Pressure Control of High Pressure Fuel Cell Engine

研究了高压燃料电池发动机空气系统的控制方法,目的是改善空气系统动态响应,减小辅助系统功耗。通过一款高压燃料电池发动机系统,试验对比了开环压力控制和闭环压力控制两种控制算法,并对该系统提出优化方案。研究结果表明,在目前应用中,在不同压力响应阶段结合两种控制方法可以改善压力响应的速度和精度;从长远来看,采用更加优化的控制方法,能够更好地控制燃料电池发动机系统。

The control algorithm of air supply system for high pressure fuel cell engine was researched in order to improve its transient response performance and reduce its auxiliary system power consumption. With a high pressure fuel cell engine system, the comparison between open-loop pressure control and close-loop pressure control was made and the optimized scheme was presented. The results show that the pressure response speed and accuracy can be improved by the two methods of pressure control in the current application. In a long term, a more optimized control method to optimize the fuel cell engine system control is required.