An Improved Relay Protection Simulation Method - Direction Distance Method

DOI

10.2991/eeeis-17.2017.56How to use a DOI?

Keywords

Protective relaying, Logic judgment method, Quantitative comparison method, Direction-distance method.

Abstract

This paper briefly introduces the domestic and foreign status quo of protective relaying simulation technologies. It also summarizes the current problems and obvious drawbacks of three existing methods, which can't meet the requirements of large grid's operation. In this paper, a new protective relaying simulation method, which is direction-distance method, is brought up by considering the principles of direction and distance protection. Based on the topological analysis of logic, the direction-distance method combines the advantages of logic judgment and quantitative comparison methods, and introduces the short circuit power, which makes up the problem that the simple logic method cannot judge the direction protection action. Comparing with quantitative comparison method, the value of the impedance is replaced by the malfunctions equivalent distance, which simplifies the calculation of the protection value. It can realize almost all the malfunctions of complex power grid and do not have to maintain a large number of fixed value parameters. Direction-distance methods combines the strengths of logic judgment method and quantitative comparison method, which is especially suitable for protective relaying simulation.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Feng GAO
AU  - Dong-Hai KUANG
AU  - Xi-Lan ZHAO
PY  - 2017/09
DA  - 2017/09
TI  - An Improved Relay Protection Simulation Method - Direction Distance Method
BT  - Proceedings of the 3rd Annual International Conference on Electronics, Electrical Engineering and Information Science (EEEIS 2017)
PB  - Atlantis Press
SP  - 403
EP  - 408
SN  - 2352-5401
UR  - https://doi.org/10.2991/eeeis-17.2017.56
DO  - 10.2991/eeeis-17.2017.56
ID  - GAO2017/09
ER  -