Determination of transformer HV winding axial displacement extent using hyperbolic method - a feasibility study

被引：4
|
作者：
Rahbarimagham, Hesam [1 ]
Karami, Hossein [2 ]
Esmaeili, Saeid [3 ]
Gharehpetian, Gevork B. [2 ]
机构：
[1] Islamic Azad Univ, Rafsanjan Branch, Elect & Comp Engn Dept, Rafsanjan, Iran
[2] Amirkabir Univ Technol, Elect Engn Dept, Tehran, Iran
[3] Shahid Bahonar Univ Kerman, Elect Engn Dept, Kerman, Iran
来源：
IET ELECTRIC POWER APPLICATIONS | 2019年 / 13卷 / 07期
关键词：
transformer windings; power transformers; ultra wideband communication; transmitting antennas; receiving antennas; axial displacement occurrence; analytical method; hyperbolic method; AD extent; actual transformer; transformer HV winding axial displacement extent; feasibility study; ultra-wideband systems; online monitoring; UWB-based method; transmitting antenna; transformer high-voltage winding; POWER TRANSFORMERS; FREQUENCY-RESPONSE; UHF SENSORS; CLASSIFICATION; LOCALIZATION; DEFORMATION; FAULTS;
D O I：
10.1049/iet-epa.2018.5545
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In recent years, ultra-wideband (UWB) systems have been proposed for online monitoring of power transformers. This study aims at a new UWB-based method to determine the axial displacement (AD) extent in the transformer high-voltage (HV) winding. In the proposed design, two receiving antennas and one transmitting antenna are used. Two receiving antennas receive signals at two different positions due to axial displacement occurrence, and the displacement extent is determined using an analytical method known as hyperbolic method, which is based on signals time difference of arrival. The proposed method is initially studied by simulations using computer simulation technology software. Finally, the experimental results show the effectiveness of the proposed method to detect the AD extent in an actual transformer winding.
引用
收藏
页码：1004 / 1013
页数：10
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