本研究在探討建構於電力線高頻及電磁相容之應用，主要分成三部分：電力線載波寬頻通訊傳輸特性之測量、電力線受輻射天線干擾之電磁相容研究及脈衝電流反射定位法於電力電纜故障點偵測。
首先，針對現有之電力線系統進行載波頻段傳輸特性之測量，同時建立電力線之高頻傳輸模型，來作為訊號傳遞分析之依據，並探討配電系統對訊號衰減、阻抗匹配及電磁干擾(EMI)等問題，以提供規劃及建構電力線寬頻通訊的參考。
其次，本文研究歸航台天線所發射之525 kHz導引訊號對鄰近架空電力線及通信線所引起的電磁干擾問題，其中架空線電力上的感應電壓會導致歸航台內的電氣裝置故障，為了深入瞭解電磁干擾的影響，乃應用時域有限差分法軟體(XFDTD)來評估架空線上的感應電壓。研究中發現造成干擾的主要原因分別為來自歸航台天線輻射至架空線所耦合的縱向感應電壓及天線本身的自感應電流流經接地電極而導致的地電位湧升所引起。另外，為了抑制上述EMI 所引起的相關問題乃採用個別接地系統、屏蔽電話以及鄰近歸航台之架空線改用地下電纜線等措施來進行改善。目前，歸航台內的整個系統包括電力、導航及電話等皆可正常操作。
另外，探討脈衝電流反射定位法應用於XLPE電力電纜故障點偵測，文中乃發展改善脈衝電流反射定位法的技術以消除多重反射的影響，而該技術能快速、方便且準確地來偵測地下電力電纜故障位置，以縮短復電時程，提昇供電品質；其中，應用電磁暫態程式(EMTP)來模擬該電力電纜架構的金屬遮蔽層感應電壓及電流，並通過花蓮現場全長9.1km輸電級69kV XLPE地下電纜的故障點偵測證實其適用性。
本文各章之結果在考慮實際環境的複雜度，所得模擬與量測結果都相當吻合，同時更經歷實際的驗證其功效，未來在相關應用及研究領域皆具有十分重要的參考價值。

The thesis explores applications of high frequency and electromagnetic compatibility (EMC) based on electric power lines, and it is mainly divided into three parts: 1) measurement of propagation characteristics in wide-band communication of power lines, 2) the study of the EMC between overhead power lines and radiation antennas and 3) improvement of impulse current methods applied in locating fault points.
First of all, measurement of the carrier-wave signal transmission characteristics is carried out for the existing electric power line system and high-frequency transmission model is build that acts as a basis of signal analysis. Also, the questions of signal decay, impedance-matching, and EMI in the power distribution system are explored. Those results can offer reference, which can be used for constructing a broadband system of communication over power lines in the future.
Second, electromagnetic interference (EMI) occurring in electric power and telephone lines due to radiation at a frequency of 525 kHz from an aeronautical radio navigation station are studied, to determine the parts of the electrical equipment that were affected resulting in damage or malfunction. The induced voltages measured on those lines caused malfunction or even damage to some electrical devices inside the station. To understand these EMI effects further, an FDTD (finite-difference time-domain) software package, XFDTD, was applied to evaluate the induced voltages. It was found that the major reasons resulting in interference were due to longitudinally induced voltages and ground potential rises. They were caused by the radiation from the antenna of the station and current flowing through the ground grids, respectively. In addition, mitigation of EMI was performed to correct these problems by applying separate grounding systems, shielding the telephone, and using underground cables instead of overhead lines near the station. Currently, the whole system inside the station, including electric power, navigation, and telephone, operates normally.
In addition, the fault-location in XLPE (cross-linked polyethylene) cables applying an impulse current method (ICE) is explored, and a technique has been developed to improve the multi-reflections in ICE. The technique can quickly, conveniently, and accurately detect the fault locations in underground electric power cables. Also, it can shorten the recovery time of electric power delivery. Its suitability has been verified through simulations in EMTP (Electromagnetic Transients Program) and field-testing in a 9.1 km-length, 69kV transmission level XLPE underground power cable.
Taking the complexity of the actual environment into account, the results of both the simulation and measurements in every part of the present study achieved satisfactory agreement. Also, they have been experimented in field tests to verify their effectiveness, presenting an important reference value in relevant applications for the future.

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