Advanced load blinding of distance protection relays based on physical grid limitations
Schindler J, Jäger J (2016)
Publication Type: Conference contribution
Publication year: 2016
Publisher: IEEE Computer Society
Book Volume: 2016-November
Conference Proceedings Title: IEEE Power and Energy Society General Meeting
Event location: Boston, MA
ISBN: 9781509041688
DOI: 10.1109/PESGM.2016.7741508
Abstract
The encroachment of the measured load impedance into the outer tripping zone was one of the main problems of distance protection relays since their application. Highly loaded transmission lines intensified this issue and caused cascading failures worldwide during the last decades. Restricted zone reach settings or load blinders in the R-X-impedance plane were the common countermeasures until now. These measures were performed from the point of view of the relay. The objective of this paper was to propose an approach from the point of view of the grid and its physical loading limitations regarding bus voltage und line current. This approach helped to find out the load blinder with the best possible degree of dependability and security. A comprehensive analytical description of the physical loading and stability limits of the grid was used to identify the steady state operation limits in the impedance plane. Analytical calculation results demonstrated that the proposed approach is capable of achieving an optimized shape of load blinder increasing the dependability and security compared to blinders used in distance protection relays today.
Authors with CRIS profile
Josef Schindler
Lehrstuhl für Elektrische Energiesysteme
Johann Jäger
Professur für Elektrische Energieversorgung
Additional Organisation(s)
How to cite
APA:
Schindler, J., & Jäger, J. (2016). Advanced load blinding of distance protection relays based on physical grid limitations. In IEEE Power and Energy Society General Meeting. Boston, MA, US: IEEE Computer Society.
MLA:
Schindler, Josef, and Johann Jäger. "Advanced load blinding of distance protection relays based on physical grid limitations." Proceedings of the 2016 IEEE Power and Energy Society General Meeting, PESGM 2016, Boston, MA IEEE Computer Society, 2016.
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