研究生: |
洪堃翔 Kun-Xiang Hong |
---|---|
論文名稱: |
基於模糊法之輸電鐵塔絕緣礙子汙染評估 Fuzzy-based Contamination Assessment for Insulators of Transmission Towers |
指導教授: |
張宏展
Hong-Chan Chang |
口試委員: |
吳瑞南
Ruay-Nan Wu 郭政謙 Cheng-Chien Kuo 陳鴻誠 Hung-Cheng Chen |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電機工程系 Department of Electrical Engineering |
論文出版年: | 2018 |
畢業學年度: | 106 |
語文別: | 中文 |
論文頁數: | 82 |
中文關鍵詞: | 輸電鐵塔 、絕緣礙子 、模糊理論 、污染評估 |
外文關鍵詞: | Transmission tower, Insulator, Fuzzy algorithm, Contamination assessment |
相關次數: | 點閱:158 下載:0 |
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由於輸電鐵塔上的絕緣礙子長期在戶外風吹日曬雨淋與受到鹽霧害的影響,因此造成閃絡事故的發生,影響正常的供電,其中礙掃是避免污閃事故發生最直接且有效的維護方式,但是礙掃需要耗費大量的人力與時間,因此決定礙掃時機變得格外重要。
本研究旨在運用模糊法於輸電鐵塔絕緣礙子污染狀態之研究。首先,針對絕緣礙子發生汙閃過程進行研究與分析,並對國內外現行防止礙子汙閃方法進行探討,分析其優缺點;接著,以絕緣礙子發生污閃事故比例最高的天氣型態「霧」作為環境的評估指標,選擇洩漏電流有效值、相對濕度、溫度露點差、風速作為輸入參數,提出一套基於模糊演算法之絕緣礙子污染度評估方法,改善單一洩漏電流指標作為判斷指標,無法判斷該電流值為絕緣礙子汙染還是環境潮濕所造成,可能造成系統產生誤報與漏報的問題;最後,經由測試案例分析與電力業者做法進行比較,驗證本系統與電力業者現行作法具有相同性能之評估結果,並且經由本研究方法分析後,將分析結果顯示於監測網頁上,以達到線上監測之目的,提供維護人員瞭解絕緣礙子即時資訊,以決定後續礙掃作業的進行,避免污閃事故的發生。
Because the insulator of the transmission tower has long been exposed to the outdoors and is affected by the salt mist damage, therefore, flashover accident occurred, affecting the normal power supply, which is to avoid pollution flashover accident occurred in the most direct and effective maintenance methods, but it takes a lot of manpower and time, so decided to interfere with the timing becomes particularly important.
This research aims to use the fuzzy method to study the contamination status of transmission tower insulator. Firstly, the paper studies and analyzes the contamination flashover process of insulators, and studies the method of preventing the flashover. Then, the weather pattern "fog" with the highest proportion of contamination flashover accident of insulators is used as the assessment index of environment, by choosing the effective value of leakage current, relative humidity, temperature dew point difference and wind speed as input parameters, a set of insulator contamination degree evaluation method based on fuzzy algorithm is proposed to improve the single leakage current index can not judge that the current value is caused by the insulator pollution or the environmental humidity. Finally, through the case analysis to verify that the system has the same assessment result with the electric operators and analysis results are displayed on the Web page to provide maintenance personnel to understand the insulator real-time information to avoid the occurrence of pollution flashover accident.
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