{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,6]],"date-time":"2026-01-06T05:06:08Z","timestamp":1767675968243,"version":"3.38.0"},"reference-count":44,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2021,3,1]],"date-time":"2021-03-01T00:00:00Z","timestamp":1614556800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/501100003968","name":"Iran National Science Foundation","doi-asserted-by":"publisher","award":["1245"],"award-info":[{"award-number":["1245"]}],"id":[{"id":"10.13039\/501100003968","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering"],"published-print":{"date-parts":[[2021,9]]},"abstract":"<jats:p> In this article, a novel approach for model-based sensor fault detection and estimation of gas turbine is presented. The proposed method includes driving a state-space model of gas turbine, designing a novel L<jats:sub>1<\/jats:sub>-norm Lyapunov-based observer, and a decision logic which is based on bank of observers. The novel observer is designed using multiple Lyapunov functions based on L<jats:sub>1<\/jats:sub>-norm, reducing the estimation noise while increasing the accuracy. The L<jats:sub>1<\/jats:sub>-norm observer is similar to sliding mode observer in switching time. The proposed observer also acts as a low-pass filter, subsequently reducing estimation chattering. Since a bank of observers is required in model-based sensor fault detection, a bank of L<jats:sub>1<\/jats:sub>-norm observers is designed in this article. Corresponding to the use of the bank of observers, a two-step fault detection decision logic is developed. Furthermore, the proposed state-space model is a hybrid data-driven model which is divided into two models for steady-state and transient conditions, according to the nature of the gas turbine. The model is developed by applying a subspace algorithm to the real field data of SGT-600 (an industrial gas turbine). The proposed model was validated by applying to two other similar gas turbines with different ambient and operational conditions. The results of the proposed approach implementation demonstrate precise gas turbine sensor fault detection and estimation. <\/jats:p>","DOI":"10.1177\/0959651821996173","type":"journal-article","created":{"date-parts":[[2021,3,2]],"date-time":"2021-03-02T05:21:01Z","timestamp":1614662461000},"page":"1337-1354","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":5,"title":["Development of <i>L<\/i><sub>1<\/sub>-norm sliding mode observer for sensor fault diagnosis of an industrial gas turbine"],"prefix":"10.1177","volume":"235","author":[{"given":"Mahyar","family":"Akbari","sequence":"first","affiliation":[{"name":"Faculty of Aerospace Engineering, K. N. Toosi University of Technology, Tehran, Iran"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1838-1329","authenticated-orcid":false,"given":"Abdol Majid","family":"Khoshnood","sequence":"additional","affiliation":[{"name":"Faculty of Aerospace Engineering, K. N. 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