Analytic Analysis for Dynamic System Frequency in Power Systems Under Uncertain Variability
In this paper, a new systematic method is proposed to analyze the system frequency in power systems under uncertain variability (UV). UV gradually increases in power systems, which originates from the renewable energy generation, random loads, frequency measurement, and communication channels, exert...
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ftosti:oai:osti.gov:1523763 2023-07-30T04:04:25+02:00 Analytic Analysis for Dynamic System Frequency in Power Systems Under Uncertain Variability Li, Hongyu Ju, Ping Gan, Chun You, Shutang Wu, Feng Liu, Yilu 2021-07-30 application/pdf http://www.osti.gov/servlets/purl/1523763 https://www.osti.gov/biblio/1523763 https://doi.org/10.1109/TPWRS.2018.2873410 unknown http://www.osti.gov/servlets/purl/1523763 https://www.osti.gov/biblio/1523763 https://doi.org/10.1109/TPWRS.2018.2873410 doi:10.1109/TPWRS.2018.2873410 42 ENGINEERING 2021 ftosti https://doi.org/10.1109/TPWRS.2018.2873410 2023-07-11T09:33:50Z In this paper, a new systematic method is proposed to analyze the system frequency in power systems under uncertain variability (UV). UV gradually increases in power systems, which originates from the renewable energy generation, random loads, frequency measurement, and communication channels, exerting noteworthy impacts on dynamic system frequency. The UV is modeled as a stochastic process in this paper. Then, the stochastic differential equations are used to describe the dynamic system frequency response (SFR) of a power system under UV, which is based on the SFR model. To assess system frequency dynamics under UV, an index of intra-range probability is put forward. Based on stochastic analysis theory, an analytic method is proposed to analyze the system frequency under UV, by which the intra-range probability can be analytically solved. Compared with Monte Carlo simulation in a typical SFR case and the Iceland electricity transmission network, the proposed method shows almost the same results using much less computation resource. Finally, insights for improving the SFR under UV are provided. The proposed method can be used to quickly verify whether the system frequency could withstand the UV and stay in the security range. Other/Unknown Material Iceland SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) IEEE Transactions on Power Systems 34 2 982 993 |
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42 ENGINEERING |
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42 ENGINEERING Li, Hongyu Ju, Ping Gan, Chun You, Shutang Wu, Feng Liu, Yilu Analytic Analysis for Dynamic System Frequency in Power Systems Under Uncertain Variability |
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42 ENGINEERING |
description |
In this paper, a new systematic method is proposed to analyze the system frequency in power systems under uncertain variability (UV). UV gradually increases in power systems, which originates from the renewable energy generation, random loads, frequency measurement, and communication channels, exerting noteworthy impacts on dynamic system frequency. The UV is modeled as a stochastic process in this paper. Then, the stochastic differential equations are used to describe the dynamic system frequency response (SFR) of a power system under UV, which is based on the SFR model. To assess system frequency dynamics under UV, an index of intra-range probability is put forward. Based on stochastic analysis theory, an analytic method is proposed to analyze the system frequency under UV, by which the intra-range probability can be analytically solved. Compared with Monte Carlo simulation in a typical SFR case and the Iceland electricity transmission network, the proposed method shows almost the same results using much less computation resource. Finally, insights for improving the SFR under UV are provided. The proposed method can be used to quickly verify whether the system frequency could withstand the UV and stay in the security range. |
author |
Li, Hongyu Ju, Ping Gan, Chun You, Shutang Wu, Feng Liu, Yilu |
author_facet |
Li, Hongyu Ju, Ping Gan, Chun You, Shutang Wu, Feng Liu, Yilu |
author_sort |
Li, Hongyu |
title |
Analytic Analysis for Dynamic System Frequency in Power Systems Under Uncertain Variability |
title_short |
Analytic Analysis for Dynamic System Frequency in Power Systems Under Uncertain Variability |
title_full |
Analytic Analysis for Dynamic System Frequency in Power Systems Under Uncertain Variability |
title_fullStr |
Analytic Analysis for Dynamic System Frequency in Power Systems Under Uncertain Variability |
title_full_unstemmed |
Analytic Analysis for Dynamic System Frequency in Power Systems Under Uncertain Variability |
title_sort |
analytic analysis for dynamic system frequency in power systems under uncertain variability |
publishDate |
2021 |
url |
http://www.osti.gov/servlets/purl/1523763 https://www.osti.gov/biblio/1523763 https://doi.org/10.1109/TPWRS.2018.2873410 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
http://www.osti.gov/servlets/purl/1523763 https://www.osti.gov/biblio/1523763 https://doi.org/10.1109/TPWRS.2018.2873410 doi:10.1109/TPWRS.2018.2873410 |
op_doi |
https://doi.org/10.1109/TPWRS.2018.2873410 |
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IEEE Transactions on Power Systems |
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34 |
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2 |
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982 |
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993 |
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1772815855374041088 |