燃料电池动力系统氢气压力控制策略研究  

Research on Hydrogen Pressure Control Strategy of Fuel Cell Power System

作　　者：聂巍 孙震 周炳杰 王仁康 刘汝杰 李凯[2,3] Nie Wei;Sunzhen;Zhou Bingjie;Wang Renkang;Liu Rujie;Li Kai(Wuhan Institute of Marine Electric Propulsion,Wuhan 430064,China;School of Automation Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China;Hydrogen and Fuel Cell Institute,University of Electronic Science and Technology of China,Chengdu,611731,China)

机构地区：[1]武汉船用电力推进装置研究所,武汉430064 [2]电子科技大学自动化工程学院,成都611731 [3]电子科技大学氢能与燃料电池研究院,成都611731

出　　处：《船电技术》2021年第6期45-50,共6页Marine Electric & Electronic Engineering

摘　　要：为确保燃料电池动力系统安全性和可靠性,本文分析燃料电池动力系统氢气压力控制的影响因素,分析氢气系统回路的设备的流量特性,建立氢气回路压力控制的数学模型。在此基础上,提出压力反馈的PI控制与负载电流前馈控制结合的压力调控算法,并进行反馈和前馈控制参数的设计。在Matlab/Simulink中建立压力控制仿真模型,在给定阶跃、负载突变和排气阀开闭等条件下,对比论证所提算法的有效性。仿真结果表明,所提算法具有快速的跟踪响应能力,且对负载电流变化和排气阀开闭的扰动有很强的抑制能力。In order to ensure the safety of fuel cell power system,the factors affecting the hydrogen pressure control of the fuel cell power system is presented.Then,the flow characteristics of the equipment in the hydrogen system are analyzed,and a mathematical model for the hydrogen pressure control is established.A current feed-forward compensation based on the pressure feedback PI control algorithm is proposed,and the control parameters are regulated.Finally,a pressure control simulation model is established in Matlab/Simulink to prove the effectiveness of this algorithm under the condition of sudden change of the target pressure,or the load current,or the duty of the purge valve etc.The simulation results demonstrate that the algorithm proposed in this paper has very impressive dynamic characteristics and anti-jamming capability to suppress the disturbance from the change of the load current and the purge valve’s duty.

关 键 词：燃料电池动力系统 压力控制 PI反馈控制 前馈控制 

分 类 号：TM911.4[电气工程—电力电子与电力传动]