汽车工业
浪涌
气体压缩机
瞬态(计算机编程)
自适应控制
空气压缩机
工程类
汽车工程
控制理论(社会学)
离心式压缩机
控制系统
计算机科学
控制(管理)
机械工程
电气工程
人工智能
航空航天工程
操作系统
作者
Jae‐Young Han,Sangseok Yu,Sun Yi
标识
DOI:10.1016/j.apenergy.2016.12.115
摘要
Surge control in a centrifugal air compressor is crucial to ensure the reliable operation of a fuel cell system, but few studies have reported on compressor surges in fuel cell systems. This study presents an effective surge control algorithm with a surge predictive compressor model under various operating conditions of an automotive fuel cell system. Unlike previous studies on the air management systems of an automotive fuel cell, this study presents an analytic compressor model which is a nonlinear dynamic model with surge prediction capability. In this study, a model reference adaptive control (MRAC) is introduced, to avoid compressor surge during the dynamic operation of a fuel cell system. The adaptive control was compared with the nominal feedback control in the air management system of an automotive fuel cell operating within normal conditions, under transient and steady-state responses. Also, when a surge was detected in the system, the adaptive control algorithm was fast enough to recover the air mass flow rate to normal ranges. Based on these results, it can be concluded that the MRAC algorithm shows better performance than the nominal feedback control algorithm with respect to the transient behaviors and surge recovery of an automotive fuel cell system.
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