The amended standard C37.118.1a and its implications for frequency-tracking M-class phasor measurement units (PMUs)

Andrew Roscoe, Bill Dickerson, Kenneth Martin

Research output: Contribution to conferencePaper

Abstract

The new amendment to the Phasor Measurement Unit (PMU) standard C37.118.1a makes several significant changes, compared to the standard C37.118.1 (2011). This paper highlights some of the most important changes, with a particular emphasis applied to how those changes relate to the way that a frequency-tracking PMU (Phasor Measurement Unit) algorithm needs to be designed. In particular, there is a delicate trade-off between passband flatness (the bandwidth test) and stopband rejection in the Out-Of-Band (OOB) test. For a PMU algorithm using frequency-tracking and adaptive filters, it is shown that passband flatness can be relaxed to about 2.5dB, but that the stopband needs to begin up to 14.8% closer to 0 Hz than for a fixed-filter PMU. This is partly due to the exact procedures of the C37.118.1a “OOB” testing, and partly due to the adaptive nature of a frequency-tracking PMU filter section.

Conference

ConferenceIEEE Applied Measurements for Power Systems (AMPS 2014)
CountryGermany
CityAachen
Period24/09/1426/09/14

Fingerprint

Phasor measurement units
Adaptive filters
Bandwidth
Testing

Keywords

  • fourier transform
  • phase estimation
  • power system faults
  • power system state estimation

Cite this

Roscoe, A., Dickerson, B., & Martin, K. (2014). The amended standard C37.118.1a and its implications for frequency-tracking M-class phasor measurement units (PMUs). Paper presented at IEEE Applied Measurements for Power Systems (AMPS 2014), Aachen, Germany. https://doi.org/10.1109/AMPS.2014.6947702
Roscoe, Andrew ; Dickerson, Bill ; Martin, Kenneth. / The amended standard C37.118.1a and its implications for frequency-tracking M-class phasor measurement units (PMUs). Paper presented at IEEE Applied Measurements for Power Systems (AMPS 2014), Aachen, Germany.6 p.
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abstract = "The new amendment to the Phasor Measurement Unit (PMU) standard C37.118.1a makes several significant changes, compared to the standard C37.118.1 (2011). This paper highlights some of the most important changes, with a particular emphasis applied to how those changes relate to the way that a frequency-tracking PMU (Phasor Measurement Unit) algorithm needs to be designed. In particular, there is a delicate trade-off between passband flatness (the bandwidth test) and stopband rejection in the Out-Of-Band (OOB) test. For a PMU algorithm using frequency-tracking and adaptive filters, it is shown that passband flatness can be relaxed to about 2.5dB, but that the stopband needs to begin up to 14.8{\%} closer to 0 Hz than for a fixed-filter PMU. This is partly due to the exact procedures of the C37.118.1a “OOB” testing, and partly due to the adaptive nature of a frequency-tracking PMU filter section.",
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Roscoe, A, Dickerson, B & Martin, K 2014, 'The amended standard C37.118.1a and its implications for frequency-tracking M-class phasor measurement units (PMUs)' Paper presented at IEEE Applied Measurements for Power Systems (AMPS 2014), Aachen, Germany, 24/09/14 - 26/09/14, . https://doi.org/10.1109/AMPS.2014.6947702

The amended standard C37.118.1a and its implications for frequency-tracking M-class phasor measurement units (PMUs). / Roscoe, Andrew; Dickerson, Bill; Martin, Kenneth.

2014. Paper presented at IEEE Applied Measurements for Power Systems (AMPS 2014), Aachen, Germany.

Research output: Contribution to conferencePaper

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AU - Dickerson, Bill

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Roscoe A, Dickerson B, Martin K. The amended standard C37.118.1a and its implications for frequency-tracking M-class phasor measurement units (PMUs). 2014. Paper presented at IEEE Applied Measurements for Power Systems (AMPS 2014), Aachen, Germany. https://doi.org/10.1109/AMPS.2014.6947702