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Abstract
Abstract—Environmental concerns due to emissions from nuclear and fossil fuel based power plants have triggered widespread utilization of renewable energy-based small- and large-scale distributed generation technologies. These technologies have been transforming the energy market towards a deregulated and dispersed entity. To cope with these transformations, and ensure appropriate grid monitoring and control, the conventional power grids across the globe have been enduring a paradigm shift towards a smart grid that is empowered with cutting edge technologies. The operational stability of these emerging smart power grids necessitates sophisticated real-time monitoring and control technologies. This article analyzes various stability concerns in smart power grids pertaining to distributed generations and proposes novel methodologies for ensuring operational stability. The proposed methodologies entail real-time stability monitoring and stability control with the use of wide-area synchrophasor measurements and artificial intelligence methods. The efficacy of the proposed methodologies has been verified through simulation studies conducted on an IEEE 14-bus system. Results of this research validate the necessity of coordinated control for maintaining stability of smart grids incorporating distributed generation technologies.
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Notes on contributors
Pathirikkat Gopakumar
Pathirikkat Gopakumar received the B.Tech. degree in Electrical and Electronics Engineering from Calicut University, Kerala, India in 2007. He received the M.Tech. degree in industrial drives and control from Rajiv Gandhi Institute of technology (RIT), Kottayam, Kerala, India in 2010. He is currently pursuing Ph.D. in Department of Electrical and Electronics Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu, India. His research interests include smart grid, wide area monitoring systems, synchrophasor applications in power system protection and control, digital relaying and power system stability.
M. Jaya Bharata Reddy
M. Jaya Bharata Reddy received the B.E. degree in Electrical and Electronics Engineering from Nagarjuna University, Guntur, Andhra Pradesh, India, in 2002. He received the M.E. degree in electrical engineering and the Ph.D. degree from Birla Institute of Technology (BIT), Ranchi, India, in 2004 and 2008, respectively. He is currently an Associate Professor in the Department of Electrical and Electronics Engineering, National Institute of Technology (NIT), Tiruchirappalli. He has an experience of 10 years in teaching and research. In 2010, he received the prestigious national level IEI Young Engineers Award in the field of Electrical Engineering. He is a Senior Member of the IEEE. His current research interests include smart grid, substation automation, wide-area protection, digital relaying, soft computing applications in power system, power quality analysis and power system protection. He is an editor of Electrical Power Components and Systems.
Dusmanta Kumar Mohanta
Dusmanta Kumar Mohanta received the B.Sc. (Engineering) degree from the College of Engineering and Technology, Bhubaneswar, India, the M.E degree from Birla Institute of Technology (BIT), Ranchi, India and the Ph.D. degree from Jadavpur University, Kolkata, India. He is currently a Professor in the Department of Electrical and Electronics Engineering in BIT. He has an experience of 23 years in teaching and in industry. He was an Electrical Engineer in the captive power plant of the National Aluminium Company (NALCO), Angul, India and has been involved as a consultant for different problems in industry and for testing of different electrical equipment's. He is a Senior Member of the IEEE. His current research interests include the power quality analysis, digital relaying, soft computing applications, smart grid, power system planning and reliability analysis. He is an editor of Electrical Power Components and Systems.