| URN |
etd-0626106-105628 |
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| Author |
Feng-chi Su |
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| Author's Email Address |
mei777.su888@msa.hinet.net |
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| Statistics |
This thesis had been viewed 5085 times. Download 1750 times. |
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| Department |
Electrical Engineering |
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| Year |
2005 |
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| Semester |
2 |
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| Degree |
Master |
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| Type of Document |
|
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| Language |
zh-TW.Big5 Chinese |
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| Title |
An Analysis of the Magnetic Field of Transmission Lines and its Suppression Approaches |
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| Date of Defense |
2006-06-13 |
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| Page Count |
108 |
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| Keyword |
transmission line
magnetic field
underground
near field
overhead
|
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| Abstract |
This thesis presents a computational analysis of the magnetic field of low-frequency power transmission lines, and the approaches to its suppression. First, according to the structure of Taiwan's three-phase A.C. transmission network, this research calculated the distribution of conducting wires' magnetic field under specific configuration by applying the theories of Near-field effect, Biot Savart's law, and double complex number. Second, this research explored the features of various approaches to magnetic field suppression with magnetic-field vector analyses and Matlab simulations. Finally, two magnetic-field cancellation methods, the “circuit space arrangement” and “time phase permutations” were adopted to investigate their magnetic effects under various structures and combinations of transmission lines. This study reveals that the magnetic field can be effectively suppressed by using appropriate configuration of transmission lines in space and phase. By applying the result to the design and construction of transmission lines, we can meet not only the requirements of magnetic field reduction, but also the needs of the least cost. |
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| Advisory Committee |
Fu-sheng Cheng - chair
Ta-peng Taso - co-chair
Shi-Jaw Chen - co-chair
Whei-min Lin - advisor
|
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| Files |
indicate access worldwide |
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| Date of Submission |
2006-06-26 |
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