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Energies 2016, 9(11), 893; doi:10.3390/en9110893

Communication Channel Reconstruction for Transmission Line Differential Protection: System Arrangement and Routing Protocol

1,2,* , 1,2
,
1,2
and
1,2
1
School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
2
State Key Laboratory of Advance Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
*
Author to whom correspondence should be addressed.
Academic Editor: Gianfranco Chicco
Received: 31 July 2016 / Revised: 27 September 2016 / Accepted: 17 October 2016 / Published: 29 October 2016
(This article belongs to the Special Issue Advances in Power System Operations and Planning)
View Full-Text   |   Download PDF [4758 KB, uploaded 29 October 2016]   |  

Abstract

Natural disasters may be of significant impact on overhead transmission lines and cause communication outage related to pilot protection. This paper aims at reconstructing communication channels and maintaining functions of pilot-wire differential protections after the main channel fails. With the development of smart grids as well as new communication technologies, wireless sensor networks (WSNs) have been potential means for realizing reconstructed communication channels (RCCs) without further installation. For a reliable design, system arrangement and the communication structure were presented. Theoretical planning of sensor nodes was formulated, which enjoys advantages such as high reliability, cost optimization, and capacity of satisfying the connectivity of the communication network. To meet the need of time delay, a novel routing protocol for WSNs was proposed with three stages including route establishment, route discovery and route maintenance, which ensured the directional propagation of data packets. Practical experiments and simulation results indicate that the proposed RCC scheme can satisfy time delay of protection relaying in emergency communication channel, as well as guarantee the connectivity of networks when some WSN nodes are damaged. View Full-Text
Keywords: differential protection; wireless sensor network (WSN); routing protocol; communication channel differential protection; wireless sensor network (WSN); routing protocol; communication channel
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Chen, X.; Yin, X.; Yu, B.; Zhang, Z. Communication Channel Reconstruction for Transmission Line Differential Protection: System Arrangement and Routing Protocol. Energies 2016, 9, 893.

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