Review of PMU algorithms suitable for real-time operation with digital sampled value data

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Seferi, Yljon and Quijano, Renan and Blair, Steven (2021) Review of PMU algorithms suitable for real-time operation with digital sampled value data. In: 2021 IEEE 11th International Workshop on Applied Measurements for Power Systems, 2021-09-29 - 2021-10-01, Virtual Workshop.

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Abstract

Phasor Measurement Unit (PMU) instruments are continuously evolving to reflect the needs of electrical grids for enhanced and more accurate monitoring of the AC signal parameters, and to contribute towards optimization of real-time control tasks. In turn, enhanced monitoring can contribute to a more stable and reliable power supply. PMU standards are also being updated to reflect the latest performance requirements PMUs and new technological developments. As described in standard IEC/IEEE 60255-118-1, a PMU may receive streams of timestamped digital samples using the IEC 61850-9-2 Sample Values (SV) protocol, instead of traditional analog signals. This means that the signal conditioning and sampling parts can be located at a different location from the computational unit. This approach requires remote processing, so additional time delay is introduced that affects the reporting latency of the PMU. Therefore, not all the PMU algorithms presented in the literature will be valid candidates to operate with SV data and at the same time comply with reporting latency requirements. To address this issue, the paper presents a literature review of PMU algorithms, to identify algorithms which are suitable for real-time operation with the SV data protocol. Among many proposed PMU algorithms, only a few of them can estimate synchrophasor, frequency, and rate of change of frequency (ROCOF) on a sample per sample basis. Recommendations on selecting PMU algorithms for hardware implementation that complies with SV data has been also provided.

ORCID iDs

Seferi, Yljon ORCID logoORCID: https://orcid.org/0000-0003-4082-1949, Quijano, Renan ORCID logoORCID: https://orcid.org/0000-0001-9515-9249 and Blair, Steven ORCID logoORCID: https://orcid.org/0000-0002-3261-4803;
  • Item type:Conference or Workshop Item(Paper)
    ID code:78316
    Dates:
    Date
    Event
    29 September 2021
    Published
    16 July 2021
    Accepted
    Notes:© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:28 Oct 2021 14:55
    Last modified:25 Nov 2024 01:34
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/78316
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