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Title: Impact of GPS Signal Loss and Its Mitigation in Power System Synchronized Measurement Devices

Abstract

With the aid of global positioning system (GPS), synchronized measurement devices (SMDs) are increasingly deployed across power systems to monitor the status of electric grids by providing accurate measurement data along with unified time stamps. Unfortunately, GPS receivers tend to lose signal lock when certain uncontrollable and unpredictable factors arise. In order to investigate the presence of GPS signal loss (GSL) issues on measurement devices, analysis is performed on historical data from both phasor data concentrators and FNET/GridEye servers. Meanwhile, the impact of GSL on field measurement accuracy has not been previously explored in depth. Through analysis and experimental tests, this paper discovers angle drift caused by GSL, which consequently leads to the total vector error exceeding the IEEE standard C37.118.1-2011. Furthermore, a compensation method is proposed to rectify the angle drift and laboratory experiments demonstrate that the proposed method does effectively reduce angle drift and mitigate the impact of GSL in SMDs.

Authors:
 [1]; ORCiD logo [2];  [2]; ORCiD logo [2];  [2];  [2];  [2];  [3];  [1]; ORCiD logo [2]
  1. Hunan Univ., Changsha (China)
  2. Univ. of Tennessee, Knoxville, TN (United States)
  3. General Electric, Philadelphia, PA (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1474551
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
IEEE Transactions on Smart Grid
Additional Journal Information:
Journal Volume: 9; Journal Issue: 2; Journal ID: ISSN 1949-3053
Publisher:
IEEE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Yao, Wenxuan, Liu, Yong, Zhou, Dao, Pan, Zhuohong, Till, Micah J., Zhao, Jiecheng, Zhu, Lin, Zhan, Lingwei, Tang, Qiu, and Liu, Yilu. Impact of GPS Signal Loss and Its Mitigation in Power System Synchronized Measurement Devices. United States: N. p., 2018. Web. doi:10.1109/TSG.2016.2580002.
Yao, Wenxuan, Liu, Yong, Zhou, Dao, Pan, Zhuohong, Till, Micah J., Zhao, Jiecheng, Zhu, Lin, Zhan, Lingwei, Tang, Qiu, & Liu, Yilu. Impact of GPS Signal Loss and Its Mitigation in Power System Synchronized Measurement Devices. United States. doi:10.1109/TSG.2016.2580002.
Yao, Wenxuan, Liu, Yong, Zhou, Dao, Pan, Zhuohong, Till, Micah J., Zhao, Jiecheng, Zhu, Lin, Zhan, Lingwei, Tang, Qiu, and Liu, Yilu. Sat . "Impact of GPS Signal Loss and Its Mitigation in Power System Synchronized Measurement Devices". United States. doi:10.1109/TSG.2016.2580002. https://www.osti.gov/servlets/purl/1474551.
@article{osti_1474551,
title = {Impact of GPS Signal Loss and Its Mitigation in Power System Synchronized Measurement Devices},
author = {Yao, Wenxuan and Liu, Yong and Zhou, Dao and Pan, Zhuohong and Till, Micah J. and Zhao, Jiecheng and Zhu, Lin and Zhan, Lingwei and Tang, Qiu and Liu, Yilu},
abstractNote = {With the aid of global positioning system (GPS), synchronized measurement devices (SMDs) are increasingly deployed across power systems to monitor the status of electric grids by providing accurate measurement data along with unified time stamps. Unfortunately, GPS receivers tend to lose signal lock when certain uncontrollable and unpredictable factors arise. In order to investigate the presence of GPS signal loss (GSL) issues on measurement devices, analysis is performed on historical data from both phasor data concentrators and FNET/GridEye servers. Meanwhile, the impact of GSL on field measurement accuracy has not been previously explored in depth. Through analysis and experimental tests, this paper discovers angle drift caused by GSL, which consequently leads to the total vector error exceeding the IEEE standard C37.118.1-2011. Furthermore, a compensation method is proposed to rectify the angle drift and laboratory experiments demonstrate that the proposed method does effectively reduce angle drift and mitigate the impact of GSL in SMDs.},
doi = {10.1109/TSG.2016.2580002},
journal = {IEEE Transactions on Smart Grid},
issn = {1949-3053},
number = 2,
volume = 9,
place = {United States},
year = {2018},
month = {3}
}

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