同济大学学报（自然科学版）2024，Vol.52Issue(8)：1297-1304,8.DOI:10.11908/j.issn.0253-374x.23096
燃料电池氢气流量控制系统变负载匹配设计与仿真
Variable Load Matching Design and Simulation of Hydrogen Flow Control System for Fuel Cell
摘要
Abstract
Addressing the challenge of hydrogen flow control in the on-board proton exchange membrane fuel cell system under variable loads,a control system architecture and method for hydrogen flow load matching based on proportional pressure reducing valve and flow control valve were proposed.The comprehensive model from the hydrogen tank to the fuel cell stack was established.Control strategies for the proportional pressure reducing valve,flow control valve,and hydrogen circulation pump were designed and validated through simulations.The results show that the anode pressure of the stack can promptly track the set pressure with a response time of approximately 2～3 s.The hydrogen flow can adjust to load variations,with the transient overshoot correlating positively with the pressure response speed.In a stable state,the hydrogen utilization rate remains above 95%,the hydrogen excess ratio exceeds 1.27,and the nitrogen content in the supplied gas is below 5%,meeting the stack performance criteria.关键词
质子交换膜燃料电池/供氢系统/变负载工况/负载匹配/控制策略Key words
Proton exchange membrane fuel cell/Hydrogen supply system/Variable load/Load matching/Control strategy分类
信息技术与安全科学引用本文复制引用
李晶,张力,邹姜昆,明平文..燃料电池氢气流量控制系统变负载匹配设计与仿真[J].同济大学学报（自然科学版）,2024,52(8):1297-1304,8.基金项目
国家自然科学基金(52276210) （52276210）
