华南理工大学学报(自然科学版) ›› 2004, Vol. 32 ›› Issue (1): 33-36.

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电阻分压器电场计算及其结构参数的确定

牛海清   

  1. 华南理工大学 电力学院‚广东 广州510640
  • 收稿日期:2003-02-07 出版日期:2004-01-20 发布日期:2015-09-07
  • 通信作者: 牛海清(1969-)‚女‚工程师‚主要从事高压测试技术的研究. E-mail:qh-n@sina.com
  • 作者简介:牛海清(1969-)‚女‚工程师‚主要从事高压测试技术的研究.

Electric Field Calculation and Structural Parameter Determination of Resistance Divider

Niu Hai-qing   

  1. College of Electric Power ‚South China Univ.of Tech.‚Guangzhou510640‚Guangdong‚China
  • Received:2003-02-07 Online:2004-01-20 Published:2015-09-07
  • Contact: 牛海清(1969-)‚女‚工程师‚主要从事高压测试技术的研究. E-mail:qh-n@sina.com
  • About author:牛海清(1969-)‚女‚工程师‚主要从事高压测试技术的研究.

摘要: 研究一种电磁式电压互感器的替代装置---电阻分压器‚并对其电场进行分析计算以确定其结构参数.本文中利用简单谐变场的有限元方法‚计算了几种方案的电阻分压器电场‚得到了场中各点复数形式的电位分布.通过比较其幅值误差、相角误差和最大场强值‚优化出最佳方案‚并分析了该方案幅值误差的频率特性.最后从电路的角度验证了设计计算的正确性.

关键词: 电阻分压器, 电场, 结构参数, 误差

Abstract:  The electric fields of several resistance dividers-the substitute devices of electromagnetic voltage inductor (PT) -were analyzed and calculated to determine the structural parameters of the divider.In the cal -culation of the electric field‚the Finite Element Method of simple syntonization field (sin field) was used‚and the voltage distribution of each point in the field in the form of complex number was obtained.By comparing the amplitude errors‚phase-angle errors and the maximum electric field strength of the points‚the best scheme for resistance divider design was optimized and the corresponding amplitude error -frequency characteristic was ana-
lyzed.Finally the correctness of divider design and field calculation was validated using electric circuit.

Key words: resistance divider, electric field, structural parameter, error

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