Power System Inertia Estimation Using Synchrophasor Frequency Measurements
Patent
Title | Power System Inertia Estimation Using Synchrophasor Frequency Measurements |
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Type | Patent |
Authors | Liu, Yong (Author), Cui, Yi (Author) and Liu, Yilu (Author) |
Patent/Trademark Applicant | University of Tennessee Research Foundation, United States |
Patent/Trademark Number | 10884042 |
Countries in Which Patented/Trademarked | United States of America |
Number of Pages | 10 |
Year | 2021 |
Web Address (URL) | https://www.lens.org/132-996-947-797-526 |
Abstract | A method includes performing by a processor: receiving a first plurality of power system frequency measurements from a plurality of phasor measurement units (PMUs) in the power system over a first time interval, generating a first plurality of multi-dimensional ellipsoids based on the first plurality of power system frequency measurements, extracting a plurality of first graphic parameter values from the first plurality of multi-dimensional ellipsoids, respectively, performing a regression analysis on the plurality of first graphic parameter values to generate a predictive relationship between the plurality of first graphic parameter values and inertia values of the power system, receiving a second plurality of power system frequency measurements from the plurality of PMUs over a second time interval, generating a second plurality of multi-dimensional ellipsoids based on the second plurality of power system frequency measurements, extracting a plurality of second graphic parameter values from the second plurality of multi-dimensional ellipsoids, respectively, and estimating a current inertia value of the power system based on the plurality of second graphic parameter values by using the predictive relationship between the plurality of first graphic parameter values and the inertia values of the power system. |
Keywords | Phasor measurement unit; PMU; inertia value; power systems |
ANZSRC Field of Research 2020 | 400803. Electrical energy generation (incl. renewables, excl. photovoltaics) |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | University of Tennessee, United States |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7w11/power-system-inertia-estimation-using-synchrophasor-frequency-measurements
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