[1]杨为之,宋坤宇,周力行.罗氏线圈磁屏蔽盒的设计与研究[J].高压电器,2018,54(12):158-164.[doi:10.13296/j.1001-1609.hva.2018.12.024]
 YANG Weizhi,SONG Kunyu,ZHOU Lixing.Design and Research of the Magnetic Shielding Box of the Rogowski Coil[J].High Voltage Apparatus,2018,54(12):158-164.[doi:10.13296/j.1001-1609.hva.2018.12.024]
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罗氏线圈磁屏蔽盒的设计与研究()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第54卷
期数:
2018年12期
页码:
158-164
栏目:
研究与分析
出版日期:
2018-12-29

文章信息/Info

Title:
Design and Research of the Magnetic Shielding Box of the Rogowski Coil
作者:
杨为之1 宋坤宇2 周力行1
1. 长沙理工大学电气与信息工程学院, 长沙 410000; 2. 广东电网有限责任公司电力科学研究院, 广州 510080
Author(s):
YANG Weizhi1 SONG Kunyu2 ZHOU Lixing1
1. School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410000, China; 2. Electric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou 510080, China
关键词:
罗氏线圈 磁屏蔽盒 有限元 非均匀磁场 高频电流测量
Keywords:
Rogowski coil magnetic shielding box finite element non-uniform magnetic field high frequency current measurement
DOI:
10.13296/j.1001-1609.hva.2018.12.024
摘要:
罗氏线圈受制造工艺等因素限制,其测量精度易受外界磁场干扰。对此,基于罗氏线圈工作原理与磁干扰分析设计了一种全新的罗氏线圈磁屏蔽盒。在实验室环境下,应用全、半屏蔽盒于正常信号衰减测试、模拟相间工频干扰测试、铁心振动干扰测试,并借助Ansys Maxwell对磁屏蔽盒仿真,考虑屏蔽盒材料,半、全屏蔽盒对正常信号获取以及抗磁干扰中的影响,实验结果表明:在获取正常信号方面,低频电流下添加屏蔽盒后信号衰减较为明显,而在高频电流条件下添加屏蔽盒后信号衰减较小;同时,添加了屏蔽盒后抗磁干扰能力大幅提升。仿真结果表明全屏蔽盒屏蔽性能更优,磁屏蔽盒采用硅钢材料将进一步提升正常信号获取能力。文中设计的磁屏蔽盒可应用于测量高频电流,并可根据外界磁干扰选择全、半屏蔽盒,有效地改善罗氏线圈测量精度。
Abstract:
Due to the limitation of the manufacturing process, the measuring precision of the coil is easily affected by the external magnetic field. A new Rogowski coil magnetic shielding box is designed based on Rogowski coil working principle and analysis of magnetic interference. Under the laboratory environment, using full-shielding box and semi-shielding box normal signal decay test, simulation of inter phase power line interference test and core vibration interference test. At the same time, add a shielding box has significantly enhanced the ability of anti-magnetic interference. Designing the magnetic shielding box modeling in Ansys Maxwell finite element simulation, analyzing the effect which considering material of shielding box, semi-shielding, full-shielding box of normal signal acquisition and anti-magnetic interference. The results showed that: in normal signal acquisition, input and output ratio of non-shielding box is higher in low frequency current operating conditions, and whether add shielding box has little influence in the condition of high frequency current. The simulation results show that full- shielding box has better performance, magnetic shielding box using silicon steel material will further enhance the ability to obtain the normal signal. The magnetic shielding box designed in this paper can be used in the measurement of high frequency current, and can choose the full and half shielding box according to the external magnetic interference, and effectively improve the measurement accuracy of the Roche coil.

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备注/Memo

备注/Memo:
杨为之(1992—),男,硕士研究生,研究方向为高电压绝缘技术。 宋坤宇(1993—),男,硕士,研究方向为高电压与绝缘技术(通讯作者)。
更新日期/Last Update: 2018-12-29