{"title":"输入饱和时延非线性系统的全局自适应调节","authors":"","doi":"10.1016/j.sysconle.2024.105871","DOIUrl":null,"url":null,"abstract":"<div><p>In this paper, the global adaptive stabilization problem for a class of uncertain time-delay nonlinear systems with unmeasured state dependent growth and saturated input is addressed by output-feedback. The nonlinearities depend on both the unmeasured states and the unknown polynomial-of-output growth. To handle the unmeasured state and the saturated input, a distinct observer and an auxiliary system with only one high-gain updated in a new form, are introduced, respectively. Moreover, a systematic output-feedback control scheme is proposed by using the method of backstepping. The designed controller can guarantee that all the states of the closed-loop system are global bounded. Finally, a practical example shows the validity of the proposed method.</p></div>","PeriodicalId":49450,"journal":{"name":"Systems & Control Letters","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Global adaptive regulation for time-delay nonlinear systems with saturated input\",\"authors\":\"\",\"doi\":\"10.1016/j.sysconle.2024.105871\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this paper, the global adaptive stabilization problem for a class of uncertain time-delay nonlinear systems with unmeasured state dependent growth and saturated input is addressed by output-feedback. The nonlinearities depend on both the unmeasured states and the unknown polynomial-of-output growth. To handle the unmeasured state and the saturated input, a distinct observer and an auxiliary system with only one high-gain updated in a new form, are introduced, respectively. Moreover, a systematic output-feedback control scheme is proposed by using the method of backstepping. The designed controller can guarantee that all the states of the closed-loop system are global bounded. Finally, a practical example shows the validity of the proposed method.</p></div>\",\"PeriodicalId\":49450,\"journal\":{\"name\":\"Systems & Control Letters\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-07-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Systems & Control Letters\",\"FirstCategoryId\":\"94\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0167691124001592\",\"RegionNum\":3,\"RegionCategory\":\"计算机科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"AUTOMATION & CONTROL SYSTEMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Systems & Control Letters","FirstCategoryId":"94","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167691124001592","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"AUTOMATION & CONTROL SYSTEMS","Score":null,"Total":0}
Global adaptive regulation for time-delay nonlinear systems with saturated input
In this paper, the global adaptive stabilization problem for a class of uncertain time-delay nonlinear systems with unmeasured state dependent growth and saturated input is addressed by output-feedback. The nonlinearities depend on both the unmeasured states and the unknown polynomial-of-output growth. To handle the unmeasured state and the saturated input, a distinct observer and an auxiliary system with only one high-gain updated in a new form, are introduced, respectively. Moreover, a systematic output-feedback control scheme is proposed by using the method of backstepping. The designed controller can guarantee that all the states of the closed-loop system are global bounded. Finally, a practical example shows the validity of the proposed method.
期刊介绍:
Founded in 1981 by two of the pre-eminent control theorists, Roger Brockett and Jan Willems, Systems & Control Letters is one of the leading journals in the field of control theory. The aim of the journal is to allow dissemination of relatively concise but highly original contributions whose high initial quality enables a relatively rapid review process. All aspects of the fields of systems and control are covered, especially mathematically-oriented and theoretical papers that have a clear relevance to engineering, physical and biological sciences, and even economics. Application-oriented papers with sophisticated and rigorous mathematical elements are also welcome.