GPS signal loss in the wide area monitoring system: Prevalence, impact, and solution
•Investigation of the prevalence of GPS signal loss in the wide area monitoring system using a large amount of historical PMU data.•Impact study of GPS signal loss on phasor measurement accuracy via experiments.•Potential solutions to mitigate the impact of GPS signal loss on phasor measurement unit...
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| Veröffentlicht in: | Electric power systems research 2017-06, Vol.147 (C), p.254-262 |
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| container_title | Electric power systems research |
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| creator | Yao, Wenxuan Zhou, Dao Zhan, Lingwei Liu, Yong Cui, Yi You, Shutang Liu, Yilu |
| description | •Investigation of the prevalence of GPS signal loss in the wide area monitoring system using a large amount of historical PMU data.•Impact study of GPS signal loss on phasor measurement accuracy via experiments.•Potential solutions to mitigate the impact of GPS signal loss on phasor measurement units.
The phasor measurement unit (PMUs), equipped with Global Positioning System (GPS) receivers for precise time synchronization, provides measurements of voltage and current phasors at different nodes of the wide area monitoring system. However, GPS receivers are likely to lose satellite signals due to various unpredictable factors. The prevalence of GPS signal loss (GSL) on PMUs is first investigated using real PMU data. The historical GSL events are extracted from a phasor data concentrator (PDC) and FNET/GridEye server. The correlation between GSL and time, spatial location, solar activity are explored via comprehensive statistical analysis. Furthermore, the impact of GSL on phasor measurement accuracy has been studied via experiments. Finally, several potential solutions to mitigate the impact of GSL on PMUs are discussed and compared. |
| doi_str_mv | 10.1016/j.epsr.2017.03.004 |
| format | Article |
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The phasor measurement unit (PMUs), equipped with Global Positioning System (GPS) receivers for precise time synchronization, provides measurements of voltage and current phasors at different nodes of the wide area monitoring system. However, GPS receivers are likely to lose satellite signals due to various unpredictable factors. The prevalence of GPS signal loss (GSL) on PMUs is first investigated using real PMU data. The historical GSL events are extracted from a phasor data concentrator (PDC) and FNET/GridEye server. The correlation between GSL and time, spatial location, solar activity are explored via comprehensive statistical analysis. Furthermore, the impact of GSL on phasor measurement accuracy has been studied via experiments. Finally, several potential solutions to mitigate the impact of GSL on PMUs are discussed and compared.</description><identifier>ISSN: 0378-7796</identifier><identifier>EISSN: 1873-2046</identifier><identifier>DOI: 10.1016/j.epsr.2017.03.004</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Concentrators ; Electricity distribution ; FNET/GridEye ; Global positioning systems ; GPS ; GPS signal loss ; Impact analysis ; Monitoring ; Monitoring systems ; OTHER INSTRUMENTATION ; Phasor data concentrators ; Phasor measurement unit ; Phasors ; Receivers ; Satellite navigation systems ; Signal processing ; Solar activity ; Statistical analysis ; Synchronism ; Time synchronization ; Wide area monitoring system</subject><ispartof>Electric power systems research, 2017-06, Vol.147 (C), p.254-262</ispartof><rights>2017 Elsevier B.V.</rights><rights>Copyright Elsevier Science Ltd. Jun 2017</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c399t-9a7d0567fe1d1cb8e66c8eae62192f438750667b6300246619e4ac785a5393f63</citedby><cites>FETCH-LOGICAL-c399t-9a7d0567fe1d1cb8e66c8eae62192f438750667b6300246619e4ac785a5393f63</cites><orcidid>0000000300216234</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.epsr.2017.03.004$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,315,781,785,886,3551,27928,27929,45999</link.rule.ids><backlink>$$Uhttps://www.osti.gov/servlets/purl/1399392$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Yao, Wenxuan</creatorcontrib><creatorcontrib>Zhou, Dao</creatorcontrib><creatorcontrib>Zhan, Lingwei</creatorcontrib><creatorcontrib>Liu, Yong</creatorcontrib><creatorcontrib>Cui, Yi</creatorcontrib><creatorcontrib>You, Shutang</creatorcontrib><creatorcontrib>Liu, Yilu</creatorcontrib><creatorcontrib>Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)</creatorcontrib><title>GPS signal loss in the wide area monitoring system: Prevalence, impact, and solution</title><title>Electric power systems research</title><description>•Investigation of the prevalence of GPS signal loss in the wide area monitoring system using a large amount of historical PMU data.•Impact study of GPS signal loss on phasor measurement accuracy via experiments.•Potential solutions to mitigate the impact of GPS signal loss on phasor measurement units.
The phasor measurement unit (PMUs), equipped with Global Positioning System (GPS) receivers for precise time synchronization, provides measurements of voltage and current phasors at different nodes of the wide area monitoring system. However, GPS receivers are likely to lose satellite signals due to various unpredictable factors. The prevalence of GPS signal loss (GSL) on PMUs is first investigated using real PMU data. The historical GSL events are extracted from a phasor data concentrator (PDC) and FNET/GridEye server. The correlation between GSL and time, spatial location, solar activity are explored via comprehensive statistical analysis. Furthermore, the impact of GSL on phasor measurement accuracy has been studied via experiments. 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The phasor measurement unit (PMUs), equipped with Global Positioning System (GPS) receivers for precise time synchronization, provides measurements of voltage and current phasors at different nodes of the wide area monitoring system. However, GPS receivers are likely to lose satellite signals due to various unpredictable factors. The prevalence of GPS signal loss (GSL) on PMUs is first investigated using real PMU data. The historical GSL events are extracted from a phasor data concentrator (PDC) and FNET/GridEye server. The correlation between GSL and time, spatial location, solar activity are explored via comprehensive statistical analysis. Furthermore, the impact of GSL on phasor measurement accuracy has been studied via experiments. Finally, several potential solutions to mitigate the impact of GSL on PMUs are discussed and compared.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.epsr.2017.03.004</doi><tpages>9</tpages><orcidid>https://orcid.org/0000000300216234</orcidid><oa>free_for_read</oa></addata></record> |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Concentrators Electricity distribution FNET/GridEye Global positioning systems GPS GPS signal loss Impact analysis Monitoring Monitoring systems OTHER INSTRUMENTATION Phasor data concentrators Phasor measurement unit Phasors Receivers Satellite navigation systems Signal processing Solar activity Statistical analysis Synchronism Time synchronization Wide area monitoring system |
| title | GPS signal loss in the wide area monitoring system: Prevalence, impact, and solution |
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