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Indian National Grid formed with the connection of Southern Grid to the rest of India in the last phase on December 31, 2013 ushered in having improved frequency regime of operation as well as large inter-regional power transfer for optimal operation. But problems of Low Frequency Oscillations continued to be observed in several parts. Wide-Area Monitoring System with large-scale deployment of Phasor...
Synchrophasors are used extensively in Indian Grid to detect and analyze faults occurring in the system. This paper majorly discusses the case studies of power system faults that occurred in the Indian grid and its identification and classification using data obtained from Synchrophasors. The types of faults identified include symmetrical and unsymmetrical faults in power system. Further in case of...
Inter area oscillation in large grid is inherent to a large system. However, it is desirable that these oscillations are adequately damped for a secure and reliable transfer of power. Occurrence of Low Frequency oscillations in inter area range have been observed in the Indian grid after the synchronization of Southern grid with the rest of the Indian grid. These oscillations were generally triggered...
Indian grid is among the largest synchronous grid in the world. With rapid growth in demand and generation and increased complexity in transmission network, the grid operation is becoming challenging day by day. With increased complexity, power system dynamic state visualization has a major role in grid operation. This has been achieved with the introduction of Synchrophasor Measurement Units also...
Power System Instabilities are unacceptable to the society. Indeed, recent major blackout in India had vividly demonstrated that power interruptions or blackouts significantly impact the economy and society. In July 2012, disturbances cascaded through the West-North Corridor transmission system, causing widespread blackout and left 600 million customers without electricity. By nature, a power system...
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