Application of the Global Positioning System to the Measurement of Overhead Power Transmnission Conductor Sag

Author

Mensah-Bonsu, Chris ; Fernandez, U. ; Heydt, Gerald T. ; Hoverson, Y. ; Schilleci, J. ; Agrawal, Banit

Author_Institution

Califomia ISO; Paraguayan Electricity Authority; Arizona State University; Entergy; Arizona Public Service

Volume

21

Issue

11

fYear

2001

Firstpage

64

Lastpage

64

Abstract

This article describes a method to directly measure the physical sag of overhead electric power transmission conductors. The method used relies on the global positioning system (GPS) used in the differential mode. The direct measurement of sag is a main advantage of the concept. The digital signal processing required is described in detail in a four-level configuration. Typical accuracy, response time, problems, strengths, and weaknesses of the method are also described.

Keywords

Conductors; Fault location; Global Positioning System; Position measurement; Power engineering; Power generation economics; Power measurement; Power system economics; Tracking loops; Wind energy generation; Conductor clearance waming; OASIS; conductor sag; dynamic thermal line rating; global positioning system; overhead conductors; transmission engineering;

fLanguage

English

Journal_Title

Power Engineering Review, IEEE

Publisher

ieee

ISSN

0272-1724

Type

jour

DOI

10.1109/MPER.2001.4311194

Filename

4311194