期刊名称：International Journal on Electrical Engineering and Informatics
印刷版ISSN：2085-6830
出版年度：2018
卷号：10
期号：4
页码：675-703
DOI：10.15676/ijeei.2018.10.4.5
出版社：School of Electrical Engineering and Informatics
摘要：Relay coordination is very important from the point of view of security and healthyoperation of power system. Relays should be organized in such a way that every relay shouldhave at least one back up relay and coordination time interval between primary and secondaryrelays should be maintained. This paper presents the solution of relay coordination problemusing Teaching learning based optimization technique (TLBO) by utilizing an IEEE 5 busand IEEE 30 bus test system. The obtained results are compared with the results obtainedfrom other contemporary meta-heuristic techniques like Genetic Algorithm (GA) and ParticleSwarm Optimization technique (PSO). It is observed that TLBO is the best among those withrespect to process speed. After this we have done an extension of the work by introducingcritical element and network graph theory based relay minimization technique. It is expectedthat this analysis will be helpful to maintain the network reliability and healthy flow of power.
关键词：Relay co-ordination; Teaching Learning based optimization; Overcurrent relay;characteristics; Main backup relay pairs; minimization of the relays
