Secondary Information Fault-tolerance Method for Smart Substation Based on Residuals of Measurement Equations

DOI

10.2991/eame-18.2018.4How to use a DOI?

Keywords

smart substation; state estimation; residual identifi-cation; bad data distinguishing; information fault-tolerance

Abstract

This paper presented a method of fault-tolerance for secondary-system information in smart substations. It was to solve the problem of information redundancy. This article drew on a method of state estimation on the primary-system and used the calculation of measurement-equation residuals to identify and eliminate bad data to complete the information fault-tolerance function. The diagrams illustrated the process of information interaction in the secondary-system, and introduced the configuration mode of relay protection in smart substations. Through simulation and verification, using the method of residual identification to perform protection fault-tolerance can effectively prevent the protection against misoperation caused by bad data, improve the credibility of data, and promote the reliability of the protection.

Copyright

© 2018, 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  - Yutao Qiu
AU  - Yimin Ding
AU  - Wulue Pan
AU  - Chaoli Feng
PY  - 2018/06
DA  - 2018/06
TI  - Secondary Information Fault-tolerance Method for Smart Substation Based on Residuals of Measurement Equations
BT  - Proceedings of the 2018 3rd International Conference on Electrical, Automation and Mechanical Engineering (EAME 2018)
PB  - Atlantis Press
SP  - 16
EP  - 20
SN  - 2352-5401
UR  - https://doi.org/10.2991/eame-18.2018.4
DO  - 10.2991/eame-18.2018.4
ID  - Qiu2018/06
ER  -