| 研究生: |
莊雲傑 Jhuang, Yun-Jier |
|---|---|
| 論文名稱: |
應用頻率響應分析之漸進式支撐向量機於變壓器繞組匝間短路故障之定位 A Transductive SVM for Transformer Winding Short Localization Using Frequency Response Analysis Method |
| 指導教授: |
黃世杰
Huang, Shyh-Jier |
| 學位類別: |
碩士 Master |
| 系所名稱: |
電機資訊學院 - 電機工程學系 Department of Electrical Engineering |
| 論文出版年: | 2009 |
| 畢業學年度: | 97 |
| 語文別: | 中文 |
| 論文頁數: | 87 |
| 中文關鍵詞: | 複導体輸電線 、故障定位 、變壓器 、漸進式支撐向量機 、頻率響應分析 |
| 外文關鍵詞: | Transductive SVM, FRA, Transformer, Fault Localization, MTL |
| 相關次數: | 點閱:75 下載:0 |
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本論文提出應用頻率響應分析與漸進式支撐向量機於變壓器繞組匝間短路故障定位系統設計,並分別針對正常變壓器與不同故障位置之變壓器,蒐集頻率響應特性及輸入至漸進式支撐向量機進行訓練,以尋找短路故障發生位置。另外本文於變壓器頻率響應特性分析中,係利用複導體輸電線理論進行變壓器模型之建立,依此模擬取得運轉資料,進而用以漸進式支撐向量機之訓練,最後以交叉驗證方式評估本文所提系統之鑑別準確率。經測試結果顯示,本文所提方法應有助於維修人員偵測及掌握繞組匝間短路故障位置,應有助於減少事故發生機率,提升供電可靠度。
In this thesis, a frequency response analysis method embedded with a transductive support vector machines (SVM) is applied to detect and localize the short turn of transformer windings. In the method, a multiconductor transmission line method is applied to achieve the modeling of transformers, by which the frequency response data is extensively collected from different fault locations and applied as the training basis for transductive support vector machines. Meanwhile, a cross-validation method is used in the test process to increase the detection accuracy. This integrated approach has been applied to examine various scenarios with a satisfactory success. The outcome gained from this thesis is anticipated to be useful as a forewarning mechanism, thus helping decrease the event occurrence and increase the reliability of supplying power.
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校內:2099-06-25公開