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Existing techniques often induce load voltage fluctuations when bypass thyristors are switched, leading to prolonged response times or even failed transitions due to incorrect current polarity detection. To address these issues, this paper establishes a mathematical model of the DVR during switching, analyzes conventional switching methods and their operating mechanisms, and identifies key factors affecting response time. Based on this analysis, a fast and reliable switching strategy (FRSS) is proposed. The presented thyristor turn\u2010off method significantly reduces response time while ensuring reliable operation despite current sampling errors in adverse conditions. Moreover, it effectively suppresses load voltage spikes during DVR cutout. A 50\u2010kW parallel DVR prototype is developed, and experimental results validate the effectiveness and robustness of the proposed commutation strategy.<\/jats:p>","DOI":"10.1002\/cta.70066","type":"journal-article","created":{"date-parts":[[2025,7,13]],"date-time":"2025-07-13T23:19:20Z","timestamp":1752448760000},"page":"1737-1753","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A Fast and Reliable Switching Strategy for Parallel Dynamic Voltage Restorers"],"prefix":"10.1002","volume":"54","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-7821-9886","authenticated-orcid":false,"given":"Weiguo","family":"Luo","sequence":"first","affiliation":[{"name":"College of Electrical Engineering Zhejiang University  Hangzhou China"}]},{"given":"Xiao","family":"Guo","sequence":"additional","affiliation":[{"name":"College of Electrical Engineering Zhejiang University  Hangzhou China"}]},{"given":"Zhaolin","family":"Guo","sequence":"additional","affiliation":[{"name":"College of Electrical Engineering Zhejiang University  Hangzhou China"}]},{"given":"Muhammad\u00a0Saqib","family":"Ali","sequence":"additional","affiliation":[{"name":"College of Electrical Engineering Zhejiang University  Hangzhou China"}]},{"given":"Guozhu","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Electrical Engineering Zhejiang University  Hangzhou China"}]}],"member":"311","published-online":{"date-parts":[[2025,7,13]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/cta.742"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/TPWRD.2009.2035366"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1109\/TPWRD.2020.3048838"},{"key":"e_1_2_8_5_1","unstructured":"\u201cIEEE Std 1159\u20102019 IEEE Recommended Practice for Monitoring Electric Power Quality \u201d2019."},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2024.3384876"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijepes.2017.04.013"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1109\/JESTPE.2022.3176929"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1109\/TPEL.2023.3296283"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1109\/TPEL.2021.3122583"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.3390\/en13164152"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1109\/TIE.2022.3232644"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1109\/JESTPE.2022.3149769"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1109\/TIE.2020.3028820"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.3390\/en17225528"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2022.3193942"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1109\/TIA.2005.853382"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2023.3293823"},{"key":"e_1_2_8_19_1","doi-asserted-by":"crossref","unstructured":"H.Zhang G.Xiao Z.Lu andY.Chai \u201cA Fast and Reliable Commuting Strategy for the Bypass Thyristors in Dynamic Voltage Restorers (DVRs) \u201d Presented at the 23rd EPE'21 ECCE Europe Ghent Belgium 2021 p. 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