P and M class phasor measurement unit algorithms using adaptive cascaded filters
Roscoe, Andrew and Abdulhadi, Ibrahim Faiek and Burt, Graeme (2013) P and M class phasor measurement unit algorithms using adaptive cascaded filters. IEEE Transactions on Power Delivery, 28 (3). 1447 - 1459. ISSN 0885-8977 (https://doi.org/10.1109/TPWRD.2013.2238256)
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Abstract
The new standard C37.118.1 lays down strict performance limits for phasor measurement units (PMUs) under steady-state and dynamic conditions. Reference algorithms are also presented for the P (performance) and M (measurement) class PMUs. In this paper, the performance of these algorithms is analysed during some key signal scenarios, particularly those of off-nominal frequency, frequency ramps, and harmonic contamination. While it is found that total vector error (TVE) accuracy is relatively easy to achieve, the reference algorithm is not able to achieve a useful ROCOF (rate of change of frequency) accuracy. Instead, this paper presents alternative algorithms for P and M class PMUs which use adaptive filtering techniques in real time at up to 10 kHz sample rates, allowing consistent accuracy to be maintained across a ±33% frequency range. ROCOF errors can be reduced by factors of >40 for P class and >100 for M class devices.
ORCID iDs
Roscoe, Andrew


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Item type: Article ID code: 42940 Dates: DateEvent13 June 2013PublishedKeywords: power system measurements, fourier transforms, frequency measurement, power system state estimation, phase estimation, power system stability, Electrical Engineering. Electronics Nuclear Engineering, Energy Engineering and Power Technology, Electrical and Electronic Engineering Subjects: Technology > Electrical engineering. Electronics Nuclear engineering Department: Faculty of Engineering > Electronic and Electrical Engineering Depositing user: Pure Administrator Date deposited: 20 Feb 2013 11:34 Last modified: 16 Jul 2023 21:23 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/42940