Voltage Actuated Transmission Line Protection Scheme Applying Signal Processing Techniques

被引：0

作者：

Chouhan, Dharmendra ^{[1
]}

Bhaskar, M. K. ^{[1
]}

Mahela, Om Prakash ^{[2
]}

机构：

[1] Jai Narain Vyas Univ, Dept Elect Engn, MBM Engn Coll, Jodhpur, Rajasthan, India

[2] Rajasthan Rajya Vidhyut Prasaran Nigam Ltd, Power Syst Planning Div, Jaipur, Rajasthan, India

来源：

2022 SECOND INTERNATIONAL CONFERENCE ON ADVANCES IN ELECTRICAL, COMPUTING, COMMUNICATION AND SUSTAINABLE TECHNOLOGIES (ICAECT) | 2022年

关键词：

Decision Rules; Hybrid Signal Processing Technique; power quality index;

D O I：

10.1109/ICAECT54875.2022.9807997

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

For the protection of a two-terminal transmission line, this research developed a method for fault recognition by analyzing voltage data using Stockwell transform (ST) and Hilbert transform (HT). The HT is used to process the voltage signals and compute a Hilbert amplitude frequency index (HAFI). ST is also used to get the Stockwell summation median index from the voltage signals (SSMI). The combined fault index is calculated by multiplication of HAFI and SSMI (CFI). Hilbert Stockwell Derivative Fault Index (HSDFI) is computed by differentiating the CFI and comparing it to a pre-set threshold value for identifying problematic phases. Numbers of faulty phases are utilized to classify defective occurrences. The Hilbert Stockwell derivative ground fault index (HSDGFI), which is generated by processing the zero sequence currents, is used to detect ground involvement during a failure. Line to ground (LG) faults, double line (LL) faults, double line to ground (LLLG) faults, and three phase faults with ground (LLLG) are among the faults investigated. Results of this study have been verified in MATLAB.

引用

页数：6