Load shading time control management scheme

A. E. Airoboman, S. A. Ibrahim, I. Ogbodick

Abstract


This paper presents a detailed exploration of load shedding, a critical last-resort practice in power system stability management. Moving beyond a mere definition, the analysis delves deeply into the evolution, operational principles, and comparative effectiveness of various load shedding time control schemes. The discussion begins with traditional under-frequency and under-voltage load shedding (UFLS/UVLS), examining their robust yet often non-discriminatory nature. It then progresses to more sophisticated, adaptive, and computational intelligence-based schemes enabled by modern Wide Area Measurement Systems (WAMS) and Phasor Measurement Units (PMUs). A significant portion of the analysis is dedicated to the socio-technical challenges of implementation, including fairness, economic impact, and public communication, arguing that a successful scheme is as much a policy achievement as an engineering one. Drawing on case studies and current research, the paper concludes that the future of load shedding lies in predictive, data-driven, and consumer-integrated approaches that transform it from an emergency blunt instrument into a precise grid management tool. 


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References


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