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

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復(fù)合絕緣子內(nèi)部缺陷的超聲相控陣檢測的仿真研究

來源:電工電氣發(fā)布時間:2017-07-18 13:18 瀏覽次數(shù):3
復(fù)合絕緣子內(nèi)部缺陷的超聲相控陣檢測的仿真研究
 
徐天勇1,雷成華2,董曉虎1,李榮超1,劉國強(qiáng)3,夏正武3
(1 國網(wǎng)湖北省電力公司檢修公司,湖北 武漢 430050;
2 國網(wǎng)湖北省電力公司,湖北 武漢 430077;3 中國科學(xué)院電工研究所,北京 100190)
 
    摘 要:利用超聲相控陣對高壓輸電線路中復(fù)合絕緣子內(nèi)部缺陷的帶電檢測,分辨率高、檢測速度快,為了了解相控陣超聲檢測復(fù)合絕緣子內(nèi)部缺陷的性能,優(yōu)化相控陣超聲探頭參數(shù)和掃查方法,利用Field-Ⅱ進(jìn)行仿真,研究了對相控陣超聲探頭聲場分布,以及復(fù)合絕緣子超聲相控陣檢測中單焦點(diǎn)掃描、動態(tài)聚焦掃描、幅度變跡技術(shù)對成像質(zhì)量的影響,根據(jù)仿真結(jié)果,選取了合適的相控陣探頭參數(shù)及掃描方式,為超聲相控陣儀器的設(shè)計提供了依據(jù)。
    關(guān)鍵詞:復(fù)合絕緣子;帶電檢測;超聲相控陣;Field-Ⅱ;超聲仿真
    中圖分類號:TM216     文獻(xiàn)標(biāo)識碼:A     文章編號:1007-3175(2017)07-0025-04
 
Simulation Study on Ultrasonic Phased Array Detection for Internal Defect of Composite Insulators
 
XU Tian-yong1, LEI Cheng-hua2, DONG Xiao-hu1, LI Rong-chao1, LIU Guo-qiang3, XIA Zheng-wu3
(1 Maintenance Company, State Grid Hubei Electric Power Company, Wuhan 430050, China;
2 State Grid Hubei Electric Power Company, Wuhan 430077, China;
3 Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China)
 
    Abstract: Using ultrasonic phased array to detect the internal defect of composite insulators for high voltage transmission line has the characteristics of high resolution and rapid detection. In order to know the detection performance of using ultrasonic phased array to detect the internal defect of composite insulators, and to optimize parameters of ultrasonic phased array probe and scanning methods, this paper used the Field II ultrasound simulation program to study the acoustic field distribution of ultrasonic phased array probe and the effects of single focal point scanning, dynamic focusing scanning and amplitude apodization on the imaging quality in the composite insulator ultrasonic phased array detection. The simulation results show that the selection of suitable phased array probe parameters and scan mode provides basis for the design of ultrasonic phased array instruments.
    Key words: composite insulator; live detection; ultrasonic phased array; Field-II; ultrasound simulation
 
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