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Robust observer based methodology for frequency and rate of change of frequency estimation in power systems

Robust observer based methodology for frequency and rate of change of frequency estimation in power systems
Robust observer based methodology for frequency and rate of change of frequency estimation in power systems
An observer based adaptive detection methodology (ADM) is proposed for estimating frequency and its rate of change (RoCoF) of the voltage and/or current measurements acquired from an instrument transformer. With guaranteed convergence and stability, the proposed methodology effectively neutralizes the effect of the measurement distortions like harmonics, decaying DC components and outliers by adding its counter negative. It is robust to noise statistics, performs well while encountering step changes in amplitude/phase and is demonstrably superior to its precursors as established by test results. A benchmark IEEE NETS/NYPS 16 machine 68 bus power system has been used for performance evaluation of robust ADM against its precursors and scaled laboratory setup based on OP5600 multiprocessors was used for establishing its real-time applicability.
Adaptive, Dynamic, Lyapunov, Frequency, rate of change of frequency (RoCoF), Robust, Stability
0885-8950
Mir, Abdul Saleem
491bb457-cbe5-4705-ab36-860b78763332
Singh, Abhinav Kumar
6df7029f-21e3-4a06-b5f7-da46f35fc8d3
Senroy, Nilanjan
b4565b4f-78eb-4a88-8af9-9d8c29238a4d
Mir, Abdul Saleem
491bb457-cbe5-4705-ab36-860b78763332
Singh, Abhinav Kumar
6df7029f-21e3-4a06-b5f7-da46f35fc8d3
Senroy, Nilanjan
b4565b4f-78eb-4a88-8af9-9d8c29238a4d

Mir, Abdul Saleem, Singh, Abhinav Kumar and Senroy, Nilanjan (2021) Robust observer based methodology for frequency and rate of change of frequency estimation in power systems. IEEE Transactions on Power Systems. (doi:10.1109/TPWRS.2021.3076562). (In Press)

Record type: Article

Abstract

An observer based adaptive detection methodology (ADM) is proposed for estimating frequency and its rate of change (RoCoF) of the voltage and/or current measurements acquired from an instrument transformer. With guaranteed convergence and stability, the proposed methodology effectively neutralizes the effect of the measurement distortions like harmonics, decaying DC components and outliers by adding its counter negative. It is robust to noise statistics, performs well while encountering step changes in amplitude/phase and is demonstrably superior to its precursors as established by test results. A benchmark IEEE NETS/NYPS 16 machine 68 bus power system has been used for performance evaluation of robust ADM against its precursors and scaled laboratory setup based on OP5600 multiprocessors was used for establishing its real-time applicability.

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TPWRS-01482-2020_Accepted_version - Accepted Manuscript
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Accepted/In Press date: 25 April 2021
Keywords: Adaptive, Dynamic, Lyapunov, Frequency, rate of change of frequency (RoCoF), Robust, Stability

Identifiers

Local EPrints ID: 448978
URI: http://eprints.soton.ac.uk/id/eprint/448978
ISSN: 0885-8950
PURE UUID: 23e213f9-ebdb-406a-9566-36e3f198cfbc
ORCID for Abhinav Kumar Singh: ORCID iD orcid.org/0000-0003-3376-6435

Catalogue record

Date deposited: 12 May 2021 16:32
Last modified: 18 May 2021 02:02

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Contributors

Author: Abdul Saleem Mir
Author: Abhinav Kumar Singh ORCID iD
Author: Nilanjan Senroy

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