Volume 12, Number 4 (December 2016) | IJEEE 2016, 12(4): 292-300 | Back to browse issues page



DOI: 10.22068/IJEEE.12.4.292

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Mollanezhad Heydarabadi M, Akbari Foroud A. Current Directional Protection of Series Compensated Line Using Intelligent Classifier. IJEEE. 2016; 12 (4) :292-300
URL: http://ijeee.iust.ac.ir/article-1-928-en.html

Abstract:   (665 Views)

Current inversion condition leads to incorrect operation of current based directional relay in power system with series compensated device. Application of the intelligent system for fault direction classification has been suggested in this paper. A new current directional protection scheme based on intelligent classifier is proposed for the series compensated line. The proposed classifier uses only half cycle of pre-fault and post fault current samples at relay location to feed the classifier. A lot of forward and backward fault simulations under different system conditions upon a transmission line with a fixed series capacitor are carried out using PSCAD/EMTDC software. The applicability of decision tree (DT), probabilistic neural network (PNN) and support vector machine (SVM) are investigated using simulated data under different system conditions. The performance comparison of the classifiers indicates that the SVM is a best suitable classifier for fault direction discriminating. The backward faults can be accurately distinguished from forward faults even under current inversion without require to detect of the current inversion condition.

Full-Text [PDF 289 kb]   (294 Downloads)    
Type of Study: Research Paper | Subject: Protection
Received: 2016/04/15 | Accepted: 2017/01/26 | Published: 2017/01/26

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