{"title":"使用定向过流继电器设置组考虑 N-1 应急情况的自适应保护算法","authors":"Jin-Sol Song, Chul-Hwan Kim","doi":"10.1007/s42835-024-01962-0","DOIUrl":null,"url":null,"abstract":"<p>Conventional power systems are protected from faults by directional overcurrent relays with fixed setting values. However, if a power line trips or if distributed generation is disconnected due to a fault or maintenance, it alters the topology of the power system. Consequently, the magnitude of the fault current also shifts, potentially causing a breakdown in the protection coordination system. It is considerably difficult to protect the power system using fixed setting values. Therefore, this paper proposes an adaptive protection algorithm using the setting groups (SGs) of a numerical protection relay. The number of SGs that a numerical protection relay can contain is limited and less than the number of possible topologies of the power system. The proposed algorithm optimizes not only the setting values of each protective relay but also the combinations of SGs corresponding to each topology. This broadens the searching area for the optimization algorithm, aiding in effectively reducing the operation time of protective relays. The protection algorithm is verified using a modified IEEE 30 bus test system.</p>","PeriodicalId":15577,"journal":{"name":"Journal of Electrical Engineering & Technology","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Adaptive Protection Algorithm Considering N-1 Contingency Situation Using Setting Groups of Directional Overcurrent Relays\",\"authors\":\"Jin-Sol Song, Chul-Hwan Kim\",\"doi\":\"10.1007/s42835-024-01962-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Conventional power systems are protected from faults by directional overcurrent relays with fixed setting values. However, if a power line trips or if distributed generation is disconnected due to a fault or maintenance, it alters the topology of the power system. Consequently, the magnitude of the fault current also shifts, potentially causing a breakdown in the protection coordination system. It is considerably difficult to protect the power system using fixed setting values. Therefore, this paper proposes an adaptive protection algorithm using the setting groups (SGs) of a numerical protection relay. The number of SGs that a numerical protection relay can contain is limited and less than the number of possible topologies of the power system. The proposed algorithm optimizes not only the setting values of each protective relay but also the combinations of SGs corresponding to each topology. This broadens the searching area for the optimization algorithm, aiding in effectively reducing the operation time of protective relays. The protection algorithm is verified using a modified IEEE 30 bus test system.</p>\",\"PeriodicalId\":15577,\"journal\":{\"name\":\"Journal of Electrical Engineering & Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2024-06-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Electrical Engineering & Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1007/s42835-024-01962-0\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Electrical Engineering & Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s42835-024-01962-0","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Adaptive Protection Algorithm Considering N-1 Contingency Situation Using Setting Groups of Directional Overcurrent Relays
Conventional power systems are protected from faults by directional overcurrent relays with fixed setting values. However, if a power line trips or if distributed generation is disconnected due to a fault or maintenance, it alters the topology of the power system. Consequently, the magnitude of the fault current also shifts, potentially causing a breakdown in the protection coordination system. It is considerably difficult to protect the power system using fixed setting values. Therefore, this paper proposes an adaptive protection algorithm using the setting groups (SGs) of a numerical protection relay. The number of SGs that a numerical protection relay can contain is limited and less than the number of possible topologies of the power system. The proposed algorithm optimizes not only the setting values of each protective relay but also the combinations of SGs corresponding to each topology. This broadens the searching area for the optimization algorithm, aiding in effectively reducing the operation time of protective relays. The protection algorithm is verified using a modified IEEE 30 bus test system.
期刊介绍:
ournal of Electrical Engineering and Technology (JEET), which is the official publication of the Korean Institute of Electrical Engineers (KIEE) being published bimonthly, released the first issue in March 2006.The journal is open to submission from scholars and experts in the wide areas of electrical engineering technologies.
The scope of the journal includes all issues in the field of Electrical Engineering and Technology. Included are techniques for electrical power engineering, electrical machinery and energy conversion systems, electrophysics and applications, information and controls.