DOI: https://doi.org/10.15407/techned2018.05.084

HIGH SPEED PROTECTION FOR SERIES COMPENSATED PARALLEL LINE

Authors
Piotr Pierz*, Eugeniusz Rosolowski**, Jan Izykowski***
Department of Electrical Power Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland,
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* ORCID ID : http://orcid.org/0000-0001-8647-6293
** ORCID ID : http://orcid.org/0000-0002-8656-8531
*** ORCID ID : http://orcid.org/0000-0002-1048-5510

This paper describes a novel idea for fast protection of parallel series-compensated transmission lines operating in various configurations. It is based on the logic diagram of flag signals, which are determined using only one-end phase currents measurements. The developed method has been tested and evaluated using signals obtained from computer simulations. The detailed models of considered transmission line including the SC&MOV banks as well as the measurement channels have been developed. Using these models, the reliable data for fault on a double-circuit series-compensated transmission line, as well as for faults outside the line, have been generated under variety of fault scenarios. The sample test-case results of algorithm operation, as well as statistical evaluation are presented and discussed. References 10, figures 5, table 1.

Key words: distance line protection, series compensation, fast line protection, double-circuit line, fault detection.

Received:    02.03.2018
Accepted:    19.06.2018
Published:  16.08.2018

References

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