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Utilization of optical sensors for phasor measurement units

Journal Article · · Electric Power Systems Research
 [1];  [2];  [3];  [3];  [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)
+ Show Author Affiliations
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.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1415906
Journal Information:
Electric Power Systems Research, Journal Name: Electric Power Systems Research Journal Issue: C Vol. 156; ISSN 0378-7796
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
47 OTHER INSTRUMENTATION
Instrument transformer
Optical sensor
Phasor measurement unit
Signal acquisition