Experimental qualification and sensitivity study of antipodal patch antenna structures for orientation independent detection of partial discharges

作     者：Friebe, Kerstin Jenau, Frank 

作者机构：TU Dortmund Univ Inst High Voltage Engn Dortmund Germany 

出 版 物：《HIGH VOLTAGE》 (高电压（英文）)

年 卷 期：2024年第9卷第3期

页      面：674-684页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：Technische Universitt Dortmund TU Dortmund University 

主　　题：orientation independent detection contactless detection special measurement setup microstrip antennas partial discharge source Hilbert fractal structure antipodal design Charge measurement partial discharge diagnosis diagnosing components measuring circuit unique measurement setup antipodal patch antenna structures alignment independent detection Single antennas tapered slot antennas directional antennas partial discharge measurement partial discharges patch antennas directive antennas power transmission system Dielectric breakdown and discharges logarithmic periodic structure different patch antenna structures antenna radiation patterns geometric structures slot antennas fractals partial discharges 

摘      要：Partial discharge diagnosis is an important part of monitoring and diagnosing components of the power transmission system. Four different patch antenna structures for the detection of partial discharges are investigated. These patch antennas, which are realisable in a variety of geometric structures, are already the subject of research. They offer the advantage of contactless detection without intervention in the test object or the measuring circuit, and also offer the possibility of alignment independent detection compared to directional antennas. However, it is important and required to examine different structures extensively at the same measurement setup and to compare their performance. To achieve this, four different configurations of patch antenna structures based on basic geometries all in antipodal design are realised: a logarithmic periodic structure, a Hilbert fractal structure and two tapered slot antennas. They are exposed to the same conditions on a special and unique measurement setup. As the main aspect, the performance of orientation independent detection of partial discharges patch antennas with varying distance and rotation in relation to the partial discharge source as well as the operating bandwidth is examined. To rate the structures, an evaluation scheme is created and a sensitivity matrix is generated.