Oscillation Monitoring in Indian Power System using MATLAB

Electronics & Communication

The Indian electrical grid is one of the largest & complex networks in the world. Such complex system is subjected to stress or disturbances which manifest in the form of low frequency oscillations. Monitoring of these oscillations is necessary as they can disrupt the system if they are sustained for a longer period of time with significant magnitude. This paper presents the analysis of low frequency oscillation modes using the data from Phasor measurement units located at two extreme parts of eastern region. It reports a case study of an event that occurred in one of the Eastern regions of Indian power grid. The modes with low frequency oscillations were observed in Eastern region of the Indian grid. The Prony analysis techniques were used to identify the oscillatory modes in system during the occurrence of the event. The importance of identifying dominant mode, computation of non-dominant oscillatory modes & the role played by phasor measurement unit & their locations has been brought out in this paper.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.