期刊论文

Design and Research of the Magnetic Shielding Box of the Rogowski Coil

中文

高压电器

1001-1609

2018

54

12

158-164,173

10.13296/j.1001-1609.hva.2018.12.024

本校为第一机构

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...

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 abilit...