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

Yao, Wenxuan; Liu, Yong; Zhou, Dao; Pan, Zhuohong; Till, Micah J.; Zhao, Jiecheng; Zhu, Lin; Zhan, Lingwei; Tang, Qiu; Liu, Yilu

doi:10.1109/TSG.2016.2580002

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:

Yao, Wenxuan ^[1];

^[2]; Zhou, Dao ^[2];

^[2]; Till, Micah J. ^[2]; Zhao, Jiecheng ^[2]; Zhu, Lin ^[2]; Zhan, Lingwei ^[3]; Tang, Qiu ^[1];

^[2]

Hunan Univ., Changsha (China)
Univ. of Tennessee, Knoxville, TN (United States)
General Electric, Philadelphia, PA (United States)

Publication Date:: Sat Mar 10 00:00:00 EST 2018

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:: 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.

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                    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.  https://doi.org/10.1109/TSG.2016.2580002

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                    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.  https://doi.org/10.1109/TSG.2016.2580002.  https://www.osti.gov/servlets/purl/1474551.

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@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},

  number       = 2,

  volume       = 9,

  place        = {United States},

  year         = {Sat Mar 10 00:00:00 EST 2018},

  month        = {Sat Mar 10 00:00:00 EST 2018}

}

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Cited by: 39 works

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Fig. 1: GPS signal status flag in PMU data format standard

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