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Energies 2017, 10(5), 633; doi:10.3390/en10050633

Wide Area Information-Based Transmission System Centralized Out-of-Step Protection Scheme

Croatian Transmission System Operator Ltd., 10000 Zagreb, Croatia
Department of Energy and Power Systems, Faculty of Electrical Engineering and Computing, University of Zagreb, 10000 Zagreb, Croatia
Author to whom correspondence should be addressed.
Academic Editor: Rodolfo Araneo
Received: 15 February 2017 / Revised: 26 April 2017 / Accepted: 28 April 2017 / Published: 5 May 2017


A wide area monitoring system (WAMS) with reliable telecommunication infrastructure can be expanded and enhanced with additional protection and control functionalities using synchronized phasor data measurements. With that aim, we have developed a multifunctional line protection (MFLP) model with both system and back-up protection functions. Theoretical premises based on transmission and relay protection system knowledge, together with the experience gathered from the operation of existing wide area systems, were used to develop the proposed model. Four main groups of simulation scenarios were defined in order to test the newly implemented functions. The results of the simulation process confirm the assumptions underlying the design of our MFLP module. Simulation results are then used for definition of the protection criteria required for implementation of the wide area protection algorithm in a control center. Conclusions drawn from the protection responses of the proposed algorithm that strengthen the algorithm design process are elaborated in the paper. The main contribution of the paper is the design and development of a centralized MFLP algorithm based on synchronized phasor data that is able to issue a trip command to a circuit breaker before an out-of-step condition occurs. View Full-Text
Keywords: wide area monitoring protection and control; synchrophasor data; multifunctional line protection (MFLP); out-of-step protection wide area monitoring protection and control; synchrophasor data; multifunctional line protection (MFLP); out-of-step protection

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Ivanković, I.; Kuzle, I.; Holjevac, N. Wide Area Information-Based Transmission System Centralized Out-of-Step Protection Scheme. Energies 2017, 10, 633.

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