Energy Management Research Journal (EMRJ)

Research Article

Transmission Line Protection Schemes Based on Discrete Wavelet Transform Using Voltage Signals

Nikita Tailor¹, Satyanarayan Joshi¹ and Om Prakash Mahela²

¹Department of Electrical Engineering, Government Women Engineering College Ajmer, India.

²Power System Planning Division, Rajasthan Rajya Vidyut Prasaran Nigam Ltd., Jaipur, India.

Submitted: Febraury 12, 2020; Accepted: May 31, 2020.

Abstract

This research work presents an algorithm for detection and classification of transmission line faults. In the algorithm, voltage based approach using discrete wavelet transform is introduced. Algorithm is successfully tested for different case studies such as variations in fault location on transmission line, variations in fault impedance and event of reverse power flow. The algorithm is also tested for switching transients. It is established that the proposed algorithm based on the discrete Wavelet transform and using voltage signal is effective in detection and classification of the different types of the faults on the transmission line. The study has been carried out in MATLAB/Simulink environment.

Keywords

Fault; transmission line; voltage, Wigner distribution function; Wavelet Transform.

Downlaod Full Text >>