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This content will become publicly available on November 10, 2018

Title: Utilization of optical sensors for phasor measurement units

With the help of GPS signals for synchronization, increasingly ubiquitous phasor measurement units (PMUs) provide power grid operators unprecedented system monitoring and control opportunities. However, the performance of PMUs is limited by the inherent deficiencies in traditional transformers. To address these issues, an optical sensor is used in PMU for signal acquisition to replace the traditional transformers. This is the first time the utilization of an optical sensor in PMUs has ever been reported. The accuracy of frequency, angle, and amplitude are evaluated via experiments. Lastly, the optical sensor based PMU can achieve the accuracy of 9.03 × 10 –4 Hz for frequency, 6.38 × 10 –3 rad for angle and 6.73 × 10 –2 V for amplitude with real power grid signal, demonstrating the practicability of optical sensors in future PMUs.
 [1] ;  [2] ; ORCiD logo [3] ; ORCiD logo [3] ; ORCiD logo [4] ;  [4]
  1. The Univ. of Tennessee, Knoxville, TN (United States)
  2. SmartSenseCom, Silver Springs, MD (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. The Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Electric Power Systems Research
Additional Journal Information:
Journal Volume: 156; Journal Issue: C; Journal ID: ISSN 0378-7796
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
Country of Publication:
United States
24 POWER TRANSMISSION AND DISTRIBUTION; 47 OTHER INSTRUMENTATION; Instrument transformer; Optical sensor; Phasor measurement unit; Signal acquisition
OSTI Identifier: