Harmonic Distortion of Magnetizing Current in Combined Wound Toroidal Cores

被引：13

作者：

Jaroslaw, Chojnacki ^{[2
]}

Piotr, Liszewski ^{[2
]}

Marian, Soinski ^{[1
]}

Roman, Rygal ^{[1
]}

Pluta, Wojciech ^{[1
]}

Stan, Zurek ^{[3
]}

Przemyslaw, Pinkosz ^{[4
]}

机构：

[1] Czestochowa Tech Univ, Fac Elect Engn, PL-42200 Czestochowa, Poland

[2] ABB Ltd, Przasnysz Branch, PL-04713 Warsaw, Poland

[3] Cardiff Univ, Sch Engn, Wolfson Ctr Magnet, Cardiff CF24 3AA, S Glam, Wales

[4] Magneto Ltd, PL-42200 Czestochowa, Poland

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2008年 / 44卷 / 11期

关键词：

Current transformers; ferromagnetic materials; harmonic distortion; magnetic circuits; magnetic cores; magnetic fields; magnetic losses; magnetic permeability; nanostructured materials; permalloy; soft magnetic materials;

D O I：

10.1109/TMAG.2008.2002189

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：

The aim of this paper is to compare the properties of cores designed for medium voltage current transformers. The cores were made of SiFe, NiFe polycrystalline strips, and nanocrystalline strips. The properties of cores combined of two different soft magnetic materials, i.e., grain-oriented electrical steel SiFe and NiFe polycrystalline strip (SiFe+NiFe) or grain-oriented electrical steel and Fe-based nanocrystalline strip (SiFe+Nano) also have been determined. The content of harmonic distortions in a magnetizing current in various combinations of toroidal cores is presented. The lowest harmonic distortions occur in cores with grain-oriented electrical steel SiFe and the largest-in cores with NiFe polycrystalline strips among all the tested magnetic circuits. Taking into consideration magnetic properties, the best solution is the SiFe+Nano combined cores this is because of the content of harmonic distortions in comparison to SiFe+NiFe and high values of relative magnetic permeability and the shape of the magnetization curve supporting the use of SiFe+Nano in instrument transformers.

引用

页码：3816 / 3819

页数：4

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