| Presentation | 2023-03-15 Spectral analysis of synchropahsor data in a campus distribution grid: Comparison of numerical methods Munetaka Noguchi, Yoshihiko Susuki, Atsushi Ishigame, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, the so-called micro-Phasor Measurement Unit (μPMU) with high-resolution capability has been expected as a new data-driven technology for analysis and control of the future power distribution system. Time-series data derived by μPMU, which we call synchrophasor data in this report, are typically non-stationary and nonlinear due to the complex nature of the distribution grid. In this report, we analyze non-stationary time-series data on voltage-phase difference derived by multiple μPMUs for the campus distribution grid at Osaka Metropolitan University, Japan. The analysis is based on the so-called Short-Term Koopman Mode Decomposition (STKMD) that is developed to estimate spectra, precisely, eigenvalues of the Koopman operator for a nonlinear nonautonomous system (as a latent model of the dynamics of the distribution system). The STKMD applied to synchrophasor data is compared with the short-term Fourier transformation, which is another method of spectrum estimation from non-stationary time-series data. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Power gridSynchrophasor measurementTime-series dataKoopman mode decompositionNonautonomous dynamical system |
| Paper # | MSS2022-64,NLP2022-109 |
| Date of Issue | 2023-03-08 (MSS, NLP) |
| Conference Information | |
| Committee | NLP / MSS |
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| Conference Date | 2023/3/15(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Akio Tsuneda(Kumamoto Univ.) / Atsuo Ozaki(Osaka Inst. of Tech.) |
| Vice Chair | Hiroyuki Torikai(Hosei Univ.) / Shingo Yamaguchi(Yamaguchi Univ.) |
| Secretary | Hiroyuki Torikai(Sojo Univ.) / Shingo Yamaguchi(Gifu Univ.) |
| Assistant | Yuichi Yokoi(Nagasaki Univ.) / Yoshikazu Yamanaka(Utsunomiya Univ.) / Masato Shirai(Shimane Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Nonlinear Problems / Technical Committee on Mathematical Systems Science and its Applications |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Spectral analysis of synchropahsor data in a campus distribution grid: Comparison of numerical methods |
| Sub Title (in English) | |
| Keyword(1) | Power gridSynchrophasor measurementTime-series dataKoopman mode decompositionNonautonomous dynamical system |
| 1st Author's Name | Munetaka Noguchi |
| 1st Author's Affiliation | Osaka Prefecture University(Osaka Prefecture Univ.) |
| 2nd Author's Name | Yoshihiko Susuki |
| 2nd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 3rd Author's Name | Atsushi Ishigame |
| 3rd Author's Affiliation | Osaka Metropolitan University(Osaka Metropolitan Univ.) |
| Date | 2023-03-15 |
| Paper # | MSS2022-64,NLP2022-109 |
| Volume (vol) | vol.122 |
| Number (no) | MSS-435,NLP-436 |
| Page | pp.pp.11-16(MSS), pp.11-16(NLP), |
| #Pages | 6 |
| Date of Issue | 2023-03-08 (MSS, NLP) |