Assessment of time synchronization requirements for Phasor Measurement Units

Ravi Shankar Singh, Hossein Hooshyar, Luigi Vanfretti

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

15 Citations (Scopus)


This paper assesses time synchronization sources suitable for Phasor Measurement Unit (PMU) applications in power systems. The paper investigates PMU phase error due to PMU timing inaccuracy and the presence of current and voltage transformers. This paper also shows that in practical on-field applications of commercial PMUs, the required accuracy of the time source should be better than the 31.8μs limit mentioned in the IEEE Standard for Synchrophasor Measurements for Power Systems C37.118.1-2011 and could be well in the sub-microsecond range. The laboratory test set-up is discussed in brief.

Original languageEnglish
Title of host publication2015 IEEE Eindhoven PowerTech, PowerTech 2015
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic)9781479976935
Publication statusPublished - 31 Aug 2015
Externally publishedYes
EventIEEE Eindhoven PowerTech, PowerTech 2015 - Eindhoven, Netherlands
Duration: 29 Jun 20152 Jul 2015


ConferenceIEEE Eindhoven PowerTech, PowerTech 2015


  • Phasor Measurement Unit (PMU)
  • Time Synchronization
  • Total Vector Error (TVE)


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