Li Yan, Cheng De-shu, Yuan Rong-xiang, Yin Xiang-Geri, Zhang Zhe
{"title":"Study of the transient current differential protection based on correlation analysis","authors":"Li Yan, Cheng De-shu, Yuan Rong-xiang, Yin Xiang-Geri, Zhang Zhe","doi":"10.1109/TDC.2002.1177583","DOIUrl":null,"url":null,"abstract":"In this paper, the principle of the current correlation differential protection based on the correlation integration is analyzed first. The advantages of the correlation differential criterion are proved and the disadvantages are also pointed out. Aiming to the disadvantages of the correlation criterion, an improved scheme was proposed in the paper. The power system models of different structures using ATP program are built to simulate these criterion completely. Simulation studies show that the improved scheme not only preserves the advantages of correlation criterion, but also increases many new virtues such as better sensitivity and reliability, simple to understand, easy to give out setting values. Studies also show that the improved scheme is more reliable and very suitable for the protection of EHV/UHV transmission lines.","PeriodicalId":20420,"journal":{"name":"电网技术","volume":"2 1","pages":"830-834 vol.2"},"PeriodicalIF":0.0000,"publicationDate":"2002-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TDC.2002.1177583","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"电网技术","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.1109/TDC.2002.1177583","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 5
Abstract
In this paper, the principle of the current correlation differential protection based on the correlation integration is analyzed first. The advantages of the correlation differential criterion are proved and the disadvantages are also pointed out. Aiming to the disadvantages of the correlation criterion, an improved scheme was proposed in the paper. The power system models of different structures using ATP program are built to simulate these criterion completely. Simulation studies show that the improved scheme not only preserves the advantages of correlation criterion, but also increases many new virtues such as better sensitivity and reliability, simple to understand, easy to give out setting values. Studies also show that the improved scheme is more reliable and very suitable for the protection of EHV/UHV transmission lines.
期刊介绍：
"Power System Technology" (monthly) was founded in 1957. It is a comprehensive academic journal in the field of energy and power, supervised and sponsored by the State Grid Corporation of China. It is published by the Power System Technology Magazine Co., Ltd. of the China Electric Power Research Institute. It is publicly distributed at home and abroad and is included in 12 famous domestic and foreign literature databases such as the Engineering Index (EI) and the National Chinese Core Journals.
The purpose of "Power System Technology" is to serve the national innovation-driven development strategy, promote scientific and technological progress in my country's energy and power fields, and promote the application of new technologies and new products. "Power System Technology" has adhered to the publishing characteristics of combining "theoretical innovation with applied practice" for many years, and the scope of manuscript selection covers the fields of power generation, transmission, distribution, and electricity consumption.
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