Impact of GPS signal quality on the performance of phasor measurements

Author

Yong Liu ; Yong Jia ; Zhenzhi Lin ; Yilu Liu ; Yingchen Zhang ; Lei Wang

Author_Institution

M.K. Dept. of Electr., Univ. of Tennessee, Knoxville, TN, USA

fYear

2011

fDate

4-6 Aug. 2011

Firstpage

1

Lastpage

7

Abstract

Wide area measurements are becoming the basis of power system monitoring, protection and control. The frequency disturbance recorder (FDR) is actually a single-phase phasor measurement unit (PMU). It measures the voltage amplitude, angle and frequency from a single-phase 120-V wall outlet. Currently, the accuracy of synchrophasor measurements depends heavily on the precise time signal provided by global position system (GPS). This paper explores the impact of GPS signal loss on the measurement accuracy through a series of tests on FDR units including both regular and high sensitivity GPS receivers. It was shown the phase angle is more sensitive to GPS signal loss than frequency measurements.

Keywords

Global Positioning System; phase measurement; power system control; power system measurement; power system protection; radio receivers; FDR units; GPS receivers; frequency disturbance recorder; global position system; phase angle; phasor measurement unit; power system control; power system monitoring; power system protection; signal loss; synchrophasor measurements; voltage 120 V; wide area measurements; Frequency measurement; Global Positioning System; Loss measurement; Receivers; Satellites; Synchronization; Voltage measurement; frequency disturbance recorder; global position system; high sensitivity GPS receiver; phasor measurement unit; wide area measurement system;

fLanguage

English

Publisher

ieee

Conference_Titel

North American Power Symposium (NAPS), 2011

Conference_Location

Boston, MA

Print_ISBN

978-1-4577-0417-8

Electronic_ISBN

978-1-4577-0418-5

Type

conf

DOI

10.1109/NAPS.2011.6024844

Filename

6024844