| Presentation | 2021-06-12 An approximate method of network resirience Yasumasa Sagawa, Natsumi Takahashi, Tetushi Yuge, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Resilience is an index that takes into account not only the reduction of damage caused by system failures, but also the fluctuation in the state of a system after a failure and during its repair. Research on resilience has been conducted to calculate the resilience of a given network when a failure occurs, or to study ways to make the system more resilient. In this paper, we present a method for calculating the operational resilience of network system like power grid, which represents the capability of the system for the entire operational period, by considering simultaneous failures caused by common cause failures as large-scale failures and treating the occurrence and repair of failures as Markov processes. Since this method is a multidimensional Markov analysis with the number of edges as a dimension, it becomes difficult to calculate the resilience as the system size increases. Therefore, we also propose an approximate analysis using a one-dimensional Markov process. Then, we verify the applicability and accuracy of the proposed method by numerical experiments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Network / Resilience / Common cause failure / Markov process |
| Paper # | R2021-11 |
| Date of Issue | 2021-06-05 (R) |
| Conference Information | |
| Committee | R |
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| Conference Date | 2021/6/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online (Zoom) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Reliability General |
| Chair | Akira Asato(Fujitsu) |
| Vice Chair | Tadashi Dohi(Hiroshima Univ.) |
| Secretary | Tadashi Dohi(Hosei Univ.) |
| Assistant | Hiroyuki Okamura(Hiroshima Univ.) / Shinji Yokogawa(Univ. of Electro-Comm.) |
| Paper Information | |
| Registration To | Technical Committee on Reliability |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An approximate method of network resirience |
| Sub Title (in English) | |
| Keyword(1) | Network |
| Keyword(2) | Resilience |
| Keyword(3) | Common cause failure |
| Keyword(4) | Markov process |
| 1st Author's Name | Yasumasa Sagawa |
| 1st Author's Affiliation | National Defense Academy of Japan(NDA) |
| 2nd Author's Name | Natsumi Takahashi |
| 2nd Author's Affiliation | National Defense Academy of Japan(NDA) |
| 3rd Author's Name | Tetushi Yuge |
| 3rd Author's Affiliation | National Defense Academy of Japan(NDA) |
| Date | 2021-06-12 |
| Paper # | R2021-11 |
| Volume (vol) | vol.121 |
| Number (no) | R-64 |
| Page | pp.pp.1-6(R), |
| #Pages | 6 |
| Date of Issue | 2021-06-05 (R) |