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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Tran Huu Thang Baba, Y. Nagaoka, N. Ametani, A. Takami, J. Okabe, S. Rakov, V.A. |
| Copyright Year | 2010 |
| Description | Author affiliation: Tokyo Electric Power Company, R&D Center, Yokohama, Kanagawa 230-8510, Japan (Takami, J.; Okabe, S.) || University of Florida, Gainesville, FL32611, USA (Rakov, V.A.) || Doshisha University, Kyotanabe, Kyoto 610-0321, Japan (Tran Huu Thang; Baba, Y.; Nagaoka, N.; Ametani, A.) |
| Abstract | We have modeled corona discharge from an overhead wire struck by lightning for surge and electromagnetic-pulse calculations using the finite-difference time-domain (FDTD) method. The radial progression of corona discharge from the wire is represented as the radial expansion of conducting region whose conductivity is several tens of micro Siemens per meter. The critical electric field on the surface of a 5-mm-radius wire for emanating corona is set to E0=1.8 or 2.7 MV/m. The critical electric field at the boundary of radial corona sheath is set to $E^{+}=0.5$ MV/m for positive voltage application, and $E^{−}=1.5$ MV/m for negative voltage application. The calculated waveform of radial corona-discharge current agrees well with the corresponding waveform measured by Noda. Also, the calculated relation between the total charge (charge deposited on the wire and emanated corona charge) and applied voltage (q-V curves) agrees well with the corresponding measured one. Further, the expected increase of coupling between the energized wire and another one nearby due to corona discharge is well simulated. |
| Starting Page | 1309 |
| Ending Page | 1312 |
| File Size | 1202165 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424456215 |
| e-ISBN | 9781424456239 |
| DOI | 10.1109/APEMC.2010.5475772 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-04-12 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Transmission lines Current measurement Lightning Voltage Time domain analysis Electromagnetic modeling Conductors Corona Wire Finite difference methods |
| Content Type | Text |
| Resource Type | Article |
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