Measurement and monitoring of overhead transmission line sag in smart grid: A review

IET Generation, Transmission & Distribution

Fabliha Ahmed¹  Ayman Uddin Mahin¹  Md. Farhad Hossain²  Shama Naz Islam³ 

[1] Department of Electrical and Electronic Engineering Ahsanullah University of Science and Technology Dhaka Bangladesh;Department of Electrical and Electronic Engineering Bangladesh University of Engineering and Technology Dhaka Bangladesh;School of Engineering Deakin University Geelong Victoria Australia;

关键词: Overhead power lines;    Power system measurement and metering;   

DOI  :  10.1049/gtd2.12271

来源: DOAJ

【 摘 要 】

Abstract In a transmission line, sag is intentionally provided to relax the tension on the wire when placed between two terminals. However, thermal stress and extreme weather conditions can cause increases in transmission line sag, which can eventually damage transmission line infrastructure. In this regard, this paper examines a number of sag measurement techniques based on physical or optical properties and integrated with signal processing and communication technologies. The performance of different sag measurement methods is compared in terms of accuracy, precision and key feature. Several challenges and limitations of the existing sag measurement mechanisms are reported. A number of recommendations to address the identified challenges are made. Moreover, an efficient communication framework for sag related information exchange is proposed. This comprehensive review of the sag measurement techniques will facilitate the evolution of new and efficient real‐time sag measurement and monitoring methods.

【 授权许可】

Unknown