Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

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基于多信息融合的架空輸電線路覆冰舞動預測方法

來源:電工電氣發(fā)布時間:2022-10-25 12:25 瀏覽次數:416

基于多信息融合的架空輸電線路覆冰舞動預測方法

徐偉進1,徐煒彬1,王賀冉2,楊歡2
(1 國網吉林省電力有限公司長春供電公司,吉林 長春 130000;
2 長春工業(yè)大學 電氣與電子工程學院,吉林 長春 130012)
 
    摘 要:針對寒冷地區(qū)輸電線路覆冰程度難以預測的問題,提出了一種基于多信息融合的架空輸電線路覆冰舞動預測方法。使用 ANSYS Workbench 軟件對輸電鐵塔的機械結構模型進行應力分析,計算輸電線路鐵塔發(fā)生覆冰舞動時的特征點位移大小與傾角變化,選擇合適位置放置傾角傳感器與振動傳感器;當線路運行時,通過塔身傳感器信息,收集覆冰時的實時氣象數據,構建非線性四分類支持向量機(SVM)對覆冰情況進行預測分類。驗證結果顯示,該方法可以實現線路覆冰舞動現象的提前預警,預測準確率較高,便于推廣。
    關鍵詞: 輸電線路;覆冰預測;ANSYS Workbench 軟件;應力分析;支持向量機
    中圖分類號:TM726.3     文獻標識碼:A     文章編號:1007-3175(2022)10-0026-04
 
Prediction Method of Icing Galloping of Overhead Transmission
Line Based on Multi-Information Fusion
 
XU Wei-jin1, XU Wei-bin1, WANG He-ran2, YANG Huan2
(1 Changchun Power Supply Company, State Grid Jilin Electric Power Co., Ltd, Changchun 130000, China;
2 School of Electrical and Electronic Engineering, Changchun University of Technology, Changchun 130012, China)
 
    Abstract: The degree of icing of transmission lines in cold regions is difficult to predict. This paper proposed a method for predicting the icing and galloping of overhead transmission lines based on multi-information fusion. This study employed the ANSYS Workbench software to do the stress analysis of the mechanical structure model of the transmission tower. It calculated the displacement of the characteristic point and the change of the inclination angle when the transmission line tower has the phenomena of ice galloping and selected the appropriate position to place the inclination sensor and the vibration sensor.This study collected real-time meteorological data during icing while the line was running. In addition, it constructed a nonlinear four-class SVM to predict and classify the icing situation. The verification results show that this method could warn the icing and galloping of overhead transmission lines in advance.This method has higher accuracy of prediction,and it could be popularized in the industry.
    Key words: transmission line; icing prediction; ANSYS Workbench software; stress analysis; support vector machine
 
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