{"title":"提高太阳能光伏电站并联线路交叉差动继电器的选择性","authors":"Arghadeep Chowdhury, S. Paladhi, Anu Pradhan","doi":"10.1109/NPSC57038.2022.10069857","DOIUrl":null,"url":null,"abstract":"Cross differential relay is used for protecting parallel lines. For such lines connecting a solar PV plant to the grid, the current modulation by the plant during fault affects the selectivity of conventional cross differential relay. This work proposes a modified cross differential technique using positive sequence currents and prefault voltage at local bus for protection of parallel lines connecting PV plant. Performance of the proposed method is tested for different fault conditions in PV integrated IEEE-9 bus system.","PeriodicalId":162808,"journal":{"name":"2022 22nd National Power Systems Conference (NPSC)","volume":"242 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhance Selectivity of Cross Differential Relay for Parallel Lines Connecting Solar Photovoltaic Plant\",\"authors\":\"Arghadeep Chowdhury, S. Paladhi, Anu Pradhan\",\"doi\":\"10.1109/NPSC57038.2022.10069857\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Cross differential relay is used for protecting parallel lines. For such lines connecting a solar PV plant to the grid, the current modulation by the plant during fault affects the selectivity of conventional cross differential relay. This work proposes a modified cross differential technique using positive sequence currents and prefault voltage at local bus for protection of parallel lines connecting PV plant. Performance of the proposed method is tested for different fault conditions in PV integrated IEEE-9 bus system.\",\"PeriodicalId\":162808,\"journal\":{\"name\":\"2022 22nd National Power Systems Conference (NPSC)\",\"volume\":\"242 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-12-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2022 22nd National Power Systems Conference (NPSC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/NPSC57038.2022.10069857\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 22nd National Power Systems Conference (NPSC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NPSC57038.2022.10069857","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Enhance Selectivity of Cross Differential Relay for Parallel Lines Connecting Solar Photovoltaic Plant
Cross differential relay is used for protecting parallel lines. For such lines connecting a solar PV plant to the grid, the current modulation by the plant during fault affects the selectivity of conventional cross differential relay. This work proposes a modified cross differential technique using positive sequence currents and prefault voltage at local bus for protection of parallel lines connecting PV plant. Performance of the proposed method is tested for different fault conditions in PV integrated IEEE-9 bus system.
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