{"title":"基于模糊LQG混合策略的汽车PEMFC系统低负荷电压跟踪与调节。","authors":"Ze Liu , Sichuan Xu , Baitao Zhang , Sida Guo","doi":"10.1016/j.isatra.2025.06.008","DOIUrl":null,"url":null,"abstract":"<div><div>In automotive fuel<span> cell systems, high-voltage operation accelerates carbon support and platinum catalyst degradation, significantly compromising system durability. This study develops a dynamic system model with active cathode recirculation to capture the transient response of voltage, and proposes a hybrid control scheme that combines a proportional compensator with a fuzzy LQG controller to effectively enhance voltage regulation and disturbance tracking capabilities. Extensive simulation and hardware-in-the-loop (HiL) confirm the precision and rapid response of the developed controller. Compared to single LQG and fuzzy LQG controllers, the error reduction achieved is 49.3 % and 40.3 %, respectively, and the overall control benefit ratio improves by 19.2 % and 11 %. This method balances dynamic response with control efforts, effectively reducing the risk of high voltage-induced degradation under low-load conditions.</span></div></div>","PeriodicalId":14660,"journal":{"name":"ISA transactions","volume":"165 ","pages":"Pages 510-523"},"PeriodicalIF":6.5000,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Voltage tracking and regulation of vehicle PEMFC system under low load condition based on fuzzy LQG hybrid strategy\",\"authors\":\"Ze Liu , Sichuan Xu , Baitao Zhang , Sida Guo\",\"doi\":\"10.1016/j.isatra.2025.06.008\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>In automotive fuel<span> cell systems, high-voltage operation accelerates carbon support and platinum catalyst degradation, significantly compromising system durability. This study develops a dynamic system model with active cathode recirculation to capture the transient response of voltage, and proposes a hybrid control scheme that combines a proportional compensator with a fuzzy LQG controller to effectively enhance voltage regulation and disturbance tracking capabilities. Extensive simulation and hardware-in-the-loop (HiL) confirm the precision and rapid response of the developed controller. Compared to single LQG and fuzzy LQG controllers, the error reduction achieved is 49.3 % and 40.3 %, respectively, and the overall control benefit ratio improves by 19.2 % and 11 %. This method balances dynamic response with control efforts, effectively reducing the risk of high voltage-induced degradation under low-load conditions.</span></div></div>\",\"PeriodicalId\":14660,\"journal\":{\"name\":\"ISA transactions\",\"volume\":\"165 \",\"pages\":\"Pages 510-523\"},\"PeriodicalIF\":6.5000,\"publicationDate\":\"2025-06-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ISA transactions\",\"FirstCategoryId\":\"94\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0019057825003040\",\"RegionNum\":2,\"RegionCategory\":\"计算机科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"AUTOMATION & CONTROL SYSTEMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ISA transactions","FirstCategoryId":"94","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0019057825003040","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AUTOMATION & CONTROL SYSTEMS","Score":null,"Total":0}
Voltage tracking and regulation of vehicle PEMFC system under low load condition based on fuzzy LQG hybrid strategy
In automotive fuel cell systems, high-voltage operation accelerates carbon support and platinum catalyst degradation, significantly compromising system durability. This study develops a dynamic system model with active cathode recirculation to capture the transient response of voltage, and proposes a hybrid control scheme that combines a proportional compensator with a fuzzy LQG controller to effectively enhance voltage regulation and disturbance tracking capabilities. Extensive simulation and hardware-in-the-loop (HiL) confirm the precision and rapid response of the developed controller. Compared to single LQG and fuzzy LQG controllers, the error reduction achieved is 49.3 % and 40.3 %, respectively, and the overall control benefit ratio improves by 19.2 % and 11 %. This method balances dynamic response with control efforts, effectively reducing the risk of high voltage-induced degradation under low-load conditions.
期刊介绍:
ISA Transactions serves as a platform for showcasing advancements in measurement and automation, catering to both industrial practitioners and applied researchers. It covers a wide array of topics within measurement, including sensors, signal processing, data analysis, and fault detection, supported by techniques such as artificial intelligence and communication systems. Automation topics encompass control strategies, modelling, system reliability, and maintenance, alongside optimization and human-machine interaction. The journal targets research and development professionals in control systems, process instrumentation, and automation from academia and industry.