{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T16:59:26Z","timestamp":1782406766676,"version":"3.54.5"},"reference-count":35,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2023,12,26]],"date-time":"2023-12-26T00:00:00Z","timestamp":1703548800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Key Research and Development Program of Shandong Province (Major Innovation Project)","award":["2022CXGC020902"],"award-info":[{"award-number":["2022CXGC020902"]}]},{"name":"Key Research and Development Program of Shandong Province (Major Innovation Project)","award":["2021ZDZX003"],"award-info":[{"award-number":["2021ZDZX003"]}]},{"name":"Tai\u2019an Science and Technology Innovation Major Project","award":["2022CXGC020902"],"award-info":[{"award-number":["2022CXGC020902"]}]},{"name":"Tai\u2019an Science and Technology Innovation Major Project","award":["2021ZDZX003"],"award-info":[{"award-number":["2021ZDZX003"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In response to the lack of generality in feature extraction using modal decomposition methods and the susceptibility of diagnostic performance to parameter selection in traditional mechanical fault diagnosis of high-voltage circuit breaker operating mechanisms, this paper proposes a Global-Local feature extraction method based on Generalized S-Transform (S-Translate) combined with Gray Level Co-Occurrence Matrix (GLCM) and complemented by Maximum Relevance and Minimum Redundancy (mRMR) feature selection. The GL (Global-Local)-mRMR-KELM fault diagnosis model is proposed, which employs the Kernel Extreme Learning Machine (KELM). In this model, the original time-frequency domain features and the time-frequency features of the Generalized S-Transform matrix of vibration signals under different states of the circuit breaker are first extracted as global features. Then, the GLCM is obtained to extract texture features as local features. Finally, the mRMR and KELM are comprehensively applied to perform feature selection and classification on the dataset, thereby accomplishing the fault diagnosis of the circuit breaker\u2019s operating mechanism. In this study, the 72.5 kV SF6 circuit breaker operating mechanism is taken as the research object, and three types of mechanical faults are simulated to obtain a vibration signal. Experimental results verify the effectiveness of the proposed GL-mRMR-KELM model, achieving a diagnostic accuracy of 96%. This research provides a feasible approach for the fault diagnosis of circuit breaker operating mechanisms.<\/jats:p>","DOI":"10.3390\/s24010124","type":"journal-article","created":{"date-parts":[[2023,12,26]],"date-time":"2023-12-26T04:40:44Z","timestamp":1703565644000},"page":"124","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Research on Circuit Breaker Operating Mechanism Fault Diagnosis Method Combining Global-Local Feature Extraction and KELM"],"prefix":"10.3390","volume":"24","author":[{"given":"Qinzhe","family":"Liu","sequence":"first","affiliation":[{"name":"School of Electrical Engineering, Shangdong University, Jinan 250100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaolong","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Electrical Engineering, Shangdong University, Jinan 250100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhaojing","family":"Guo","sequence":"additional","affiliation":[{"name":"Taikai Automation Co., Ltd., Taian 271000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jian","family":"Li","sequence":"additional","affiliation":[{"name":"Taikai Disconnector Co., Ltd., Taian 271000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Xu","sequence":"additional","affiliation":[{"name":"Taikai Automation Co., Ltd., Taian 271000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaowen","family":"Dai","sequence":"additional","affiliation":[{"name":"School of Electrical Engineering, Shangdong University, Jinan 250100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenlei","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Electrical Engineering, Shangdong University, Jinan 250100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0523-4466","authenticated-orcid":false,"given":"Tong","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Electrical Engineering, Shangdong University, Jinan 250100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,12,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"400","DOI":"10.1016\/j.epsr.2010.10.029","article-title":"An intelligent fault diagnosis method of high voltage circuit breaker based on improved EMD energy entropy and multi-class support vector machine","volume":"81","author":"Huang","year":"2011","journal-title":"Electr. 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