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http://dx.doi.org/10.5370/JEET.2015.10.1.083

Preventive and Emergency Control of Power System for Transient Stability Enhancement  

Siddiqui, Shahbaz A. (Department of Electrical Engineering, Malaviya National Institute of Technology)
Verma, Kusum (Department of Electrical Engineering, Malaviya National Institute of Technology)
Niazi, K.R. (Department of Electrical Engineering, Malaviya National Institute of Technology)
Fozdar, Manoj (Department of Electrical Engineering, Malaviya National Institute of Technology)
Publication Information
Journal of Electrical Engineering and Technology / v.10, no.1, 2015 , pp. 83-91 More about this Journal
Abstract
This paper presents preventive and emergency control measures for on line transient stability (security) enhancement. For insecure operating state, generation rescheduling based on a real power generation shift factor (RPGSF) is proposed as a preventive control measure to bring the system back to secure operating state. For emergency operating state, two emergency control strategies namely generator shedding and load shedding have been developed. The proposed emergency control strategies are based on voltage magnitudes and rotor trajectories data available through Phasor Measurement Units (PMUs) installed in the systems. The effectiveness of the proposed approach has been investigated on IEEE-39 bus test system under different contingency and fault conditions and application results are presented.
Keywords
Emergency control; Generator rescheduling; Load shedding; Preventive control; Phasor measurement units; Transient stability;
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