Conference Proceedings

8th International E- conference on Engineering, Technology and Management - ICETM 2022

Design of a Sub Synchronous Oscillation Condition Protection Relay Using Time Frequency Analysis



To boost a transmission line’s capacity for power transfer, series compensation is required. However, when we use series compensation there is risk of sub-synchronous resonance (SSR). With the increasing penetration of renewable generation resources, power grids have become more susceptible to sub-synchronous resonance phenomena, especially to sub synchronous control interaction, which produces fast-growing oscillations. This leads to mechanical fatigue of the shaft on which the turbine and generator are connected. Till now, different techniques have been proposed, like eigenvalue, frequency scan, and time domain simulation to study sub-synchronous resonance. In this paper we compare methods for detection of SSR. Proposed method is Stockwell transform. Proposed methods were compared with traditional method i.e., Fast Fourier Transform (FFT). The reliability and effectiveness of the method have been validated on IEEE first benchmark model. The model was simulated in ATP and all the important data were extracted for MATLAB. Both the methods were implemented in MATLAB. Based on S transform result a suitable relay is designed. The relay is successfully able to damp

Conference Title : 8th International E- conference on Engineering, Technology and Management - ICETM 2022
Conference Date(s) : 11 December, 2022
Place : Online (viva Video Conference)
No fo Author(s) : 3
DOI : 10.15224/ 978-1-63248-195-5-14
Page(s) : 90-94
Electronic ISBN : 978-1-63248-195-5
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