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

Andrew Roscoe; Bill Dickerson; Kenneth Martin

doi:10.1109/AMPS.2014.6947702

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

Andrew Roscoe, Bill Dickerson, Kenneth Martin

Electronic And Electrical Engineering

Research output: Contribution to conference › Paper › peer-review

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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.

Original language	English
Number of pages	6
DOIs	https://doi.org/10.1109/AMPS.2014.6947702
Publication status	Published - 24 Sept 2014
Event	IEEE Applied Measurements for Power Systems (AMPS 2014) - Aachen, Germany Duration: 24 Sept 2014 → 26 Sept 2014

Conference

Conference	IEEE Applied Measurements for Power Systems (AMPS 2014)
Country/Territory	Germany
City	Aachen
Period	24/09/14 → 26/09/14

Keywords

fourier transform
phase estimation
power system faults
power system state estimation

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10.1109/AMPS.2014.6947702

C_2014_AMPS_C37_Tracking_6SideConference_PostPrintAccepted author manuscript, 699 KB

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

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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KW - power system faults

KW - power system state estimation

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

Abstract

Conference

Keywords

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Adaptive-Filter PMU Hardware Validation to IEEE C37.118.1a Requirements: Strathclyde ENG52 REG D6 Report

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