The Indian power grid is spread over a million square-miles, but is really one inter-connected electrical circuit. The system is rich in transient phenomena. Among these are weakly damped power oscillations, limit cycles, and even large-disturbance instabilities. Of particular interest are the relatively slower phenomena which are observable throughout the system. Several recordings of such system-wide phenomena will be presented in this talk. Most of these recordings have been obtained using a simple-to-implement synchronized Wide-Area Frequency Measurement System. While the recordings seem to be a mere confirmation of the predictions of theoretical models - traceable to the physics of Newton and Maxwell, several interesting engineering insights are obtained by a closer look at some of the recordings.
Anil Kulkarni is with the Department of Electrical Engineering Indian Institute of Technology, Bombay. His research interests include High Voltage DC Systems and Power System Dynamics. He has been associated with several utility projects relating to series compensation of AC lines, Thyristor Controlled Series Compensator controller design and Power System Stabilizers. Recently, he had the unique opportunity to analyze the disturbance recordings of the July 2012 blackouts. He received his B.E. degree in Electrical Engineering from University of Roorkee, Roorkee, India, in 1992. He received his ME degree in Electrical Engineering in 1994, and his Ph.D. in 1998 from the Indian Institute of Science, Bangalore, India.