Picture of neon light reading 'Open'

Discover open research at Strathprints as part of International Open Access Week!

23-29 October 2017 is International Open Access Week. The Strathprints institutional repository is a digital archive of Open Access research outputs, all produced by University of Strathclyde researchers.

Explore recent world leading Open Access research content this Open Access Week from across Strathclyde's many research active faculties: Engineering, Science, Humanities, Arts & Social Sciences and Strathclyde Business School.

Explore all Strathclyde Open Access research outputs...

Filters for M class phasor measurement units

Roscoe, Andrew and Abdulhadi, Ibrahim Faiek and Burt, Graeme (2012) Filters for M class phasor measurement units. In: Proceedings of the IEEE International Workshop on Applied Measurements for Power Systems (AMPS), 2012. IEEE. ISBN 978-1-4673-1540-1

[img]
Preview
PDF
C_2012_Roscoe_IEEE_AMPS_PMU_M_Filters_NoFieldCodes_PostPrint.pdf - Accepted Author Manuscript

Download (952kB) | Preview

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 the Reference M class filter is analysed. Similarly to the Reference P class filter, the M class filter is found to have a relatively poor performance when the power system frequency is off-nominal. A different architecture for an M class Phasor Measurement Unit (PMU) algorithm is presented, and in particular a completely different design of M class filter. This is shown to have much improved rejection of unwanted harmonic and inter-harmonic components. This allows consistent accuracy to be maintained across a ±33% frequency range. ROCOF (Rate of Change of Frequency) errors can be reduced by factors of >;100.