基于相似性原則的配電網(wǎng)開關(guān)機(jī)械卡澀試驗(yàn)裝置研制
徐麗蘭1,楊振中2,郭謀發(fā)1
1 福州大學(xué) 電氣工程與自動化學(xué)院,福建 福州 350108;
2 福建省石獅電力有限責(zé)任公司,福建 泉州 362700
摘 要:以LabVIEW和Matlab為平臺,研制了一套配電網(wǎng)開關(guān)機(jī)械卡澀試驗(yàn)裝置,利用振動信號識別開關(guān)機(jī)械卡澀故障。核心算法為基于相似性原則和小波包分解的綜合辨識比向量法。配網(wǎng)開關(guān)分、合閘試驗(yàn)數(shù)據(jù)分析結(jié)果與開關(guān)實(shí)際狀態(tài)相吻合,表明該裝置對于判斷配電網(wǎng)開關(guān)是否機(jī)械卡澀故障具有良好的效果。
關(guān)鍵詞:相似性原則;配電網(wǎng)開關(guān)機(jī)械卡澀;綜合辨識比向量 中圖分類號:TM564 文獻(xiàn)標(biāo)識碼:B 文章編號:1007-3175(2013)08-0044-05
Research of Switch Mechanical Structure Fault Testing Apparatus for Distribution System Based on Similarity Principle
XU Li-lan1,YANG Zhen-zhong2, GUO Mou-fa1
1 College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China;
2 Shishi Electrical Power Limited Company of Fujian Province, Quanzhou 362700, China
Abstract: This paper designed a set of switch mechanical structure fault testing apparatus for distribution system in the environment of LabVIEW and Matlab. The testing apparatus used vibration signal to identify switch mechanical structure fault. The key algorithm was the integrated identification-rate vector method based on wavelet packet decomposition with similarity principle. The simulative analysis result from field distribution switch on/off signals wave is coincided with the actual state, thus the apparatus can offer satisfying effect for judging distribution switch mechanical structure fault.
Key words: similarity principle; distribution switch mechanical structure fault; integrated identification-rate vector
參考文獻(xiàn)
[1] 杜彥明,顧霓鴻.中國電力系統(tǒng)配電開關(guān)設(shè)備現(xiàn)狀及事故情況[J].高壓電器,2001,37(3):1-5.
[2] 唐專敏,范興明,黃知超,等.高壓斷路器機(jī)械狀態(tài)的評估與診斷方法[J].桂林電子科技大學(xué)學(xué)報(bào),2011,31(1):78-81.
[3] 趙洋,劉漢宇,曾慶軍,等.基于DSP和LabVIEW的高壓真空斷路器機(jī)械特性在線監(jiān)測系統(tǒng)的研制[J].工礦自動化,2009(4):81-84.
[4] 宋錦剛.基于振動信號小波包提取和相似性原則的高壓開關(guān)設(shè)備振動監(jiān)測[J].電網(wǎng)技術(shù),2010,34(4):189-193.
[5] 胡昌華,李國華,劉濤,等.基于MATLAB 6.x的系統(tǒng)分析與設(shè)計(jì)—小波分析[M].2版.西安:西安電子科技大學(xué)出版社,2004.
[6] 宋錦剛.基于波形辨識比技術(shù)的SF6斷路器分/合閘線圈電流監(jiān)測[J].電力建設(shè),2011,32(3):65-68.