| Project/Area Number |
04650250
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
電力工学
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| Research Institution | TOYO UNIVERSITY |
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Principal Investigator |
KATO Shohei TOYO UNIVERSITY, FACULTY OF ENGINEERING, PROFESSOR, 工学部, 教授 (80103571)
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| Project Period (FY) |
1992 – 1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Budget Amount *help |
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1993: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1992: ¥1,400,000 (Direct Cost: ¥1,400,000)
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| Keywords | Surge / Frequency Domain Model of Transmission / Transmission Line Tower / Moment Method / EMTP / Surge Impedance / 雷サージ / 数値電磁界解析 / 接地抵抗 |
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| Research Abstract |
The project aimed to develop the method which can analyze surge phenomena in frequency domain by Moment Method. The method in analysis of Antenna and Micro Wave circuits deals the frequency response in same frequency area, but the time response is important in surge analysis and obtained by inverse Fourier transformation. As many frequency responses must be computed for the transformation, large computing time is needed. But if many work stations can be used at the same time, the computing time decrease by the parallel processing.
The equivalent circuit model of transmission line frequency domain are investigated for the conventional surge simulator EMTP.Moment method is applied to obtain the frequency response numerically and formed the model by analytical equation. The equation is the irrational s functions but can be transformed to rational function by the pade apporoximation and suitable form to the J.Marti model in EMTP.We applied the model to the back flash over analysis with transmission line tower and close agreement between observed and calculated values was obtained.
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