Synchrophasor Based Ocillation Detection: A Case Study for Indian Power Grid

Vaishali Rampurkar
2015 International Journal of Engineering Research and  
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 unit located in Western and northern
more » ... gion of the country. It reports case studies of disturbances that occurred in the Indian power grid. The modes with low frequency oscillations were observed in both Western& northern region of the Indian grid.The Matrix Pencil technique was used to identify the oscillatory modes in system during the occurrence of the event. The importance of identifying critical oscillatory modes to improve the power system operation, has been brought out in this paper. Keywords-Phasor measurement unit, oscillations, power system stability, inter-area oscillations I.
doi:10.17577/ijertv4is040029 fatcat:qwdlt47m5fehtnmq4sfu6q3dge