Utilization of optical sensors for phasor measurement units

Wenxuan Yao; David Wells; Daniel King; Andrew Herron; Thomas King; Yilu Liu

doi:10.1016/j.epsr.2017.11.004

Utilization of optical sensors for phasor measurement units

Wenxuan Yao, David Wells, Daniel King, Andrew Herron, Thomas King, Yilu Liu

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

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. 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.

Original language	English
Pages (from-to)	12-14
Number of pages	3
Journal	Electric Power Systems Research
Volume	156
DOIs	https://doi.org/10.1016/j.epsr.2017.11.004
State	Published - Mar 2018

Funding

This work is supported by United States Department of Energy (DOE) under the Grid Modernization Lab Call (GMLC) project.

Funders	Funder number
Grid Modernization Lab Call
U.S. Department of Energy

Keywords

Instrument transformer
Optical sensor
Phasor measurement unit
Signal acquisition

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10.1016/j.epsr.2017.11.004

Cite this

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title = "Utilization of optical sensors for phasor measurement units",

abstract = "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. 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.",

keywords = "Instrument transformer, Optical sensor, Phasor measurement unit, Signal acquisition",

author = "Wenxuan Yao and David Wells and Daniel King and Andrew Herron and Thomas King and Yilu Liu",

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doi = "10.1016/j.epsr.2017.11.004",

language = "English",

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journal = "Electric Power Systems Research",

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T1 - Utilization of optical sensors for phasor measurement units

AU - Yao, Wenxuan

AU - Wells, David

AU - King, Daniel

AU - Herron, Andrew

AU - King, Thomas

AU - Liu, Yilu

PY - 2018/3

Y1 - 2018/3

N2 - 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. 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.

AB - 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. 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.

KW - Instrument transformer

KW - Optical sensor

KW - Phasor measurement unit

KW - Signal acquisition

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JO - Electric Power Systems Research

JF - Electric Power Systems Research

ER -

Utilization of optical sensors for phasor measurement units

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Keywords

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