| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Research Abstract |
For analyzing transient voltages induced on installations in and near a wind-turbine-generator tower struck by lightning with the finite-difference time-domain (FDTD) method, several models such as a corona-discharge model and a soil ionization model have been proposed, and their validities have been shown. Then, these models have been incorporated the FDTD-simulation program developed by the author. Mechanisms for generating lightning-induced surges in a lightning-struck tower have been investigated with the FDTD program, and a countermeasure to reduce thelightning- induced-voltage peaks has been proposed.
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