Calculation of Power-frequency Magnetic Filed for Vehicle-mounted Oil-immersed Air-cored Reactor

LIU Tong; CHEN Songtao; LU Yangze; ZHAO Ke; BO Bin; LI Dongxin

doi:10.13296/j.1001-1609.hva.2020.05.012

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Calculation of Power-frequency Magnetic Filed for Vehicle-mounted Oil-immersed Air-cored Reactor

更新时间：2025-04-26

- Calculation of Power-frequency Magnetic Filed for Vehicle-mounted Oil-immersed Air-cored Reactor
- High VoltageApparatus Vol. 56, Issue 5, Pages: 74-78(2020)
- 作者机构：
  
  1. 国网江苏省电力公司电力科学研究院
  2. 国网江苏省电力有限公司
  3. 清华大学电机系电力系统及发电设备控制和仿真国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.05.012
  CLC： TM47
- Published：2020
- 稿件说明：
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[1]刘通,陈松涛,卢仰泽,赵科,柏彬,李东鑫.车载油浸式空心电抗器工频磁场计算[J].高压电器,2020,56(05):74-78.

LIU Tong, CHEN Songtao, LU Yangze, et al. Calculation of Power-frequency Magnetic Filed for Vehicle-mounted Oil-immersed Air-cored Reactor[J]. High voltageapparatus, 2020, 56(5): 74-78.
[1]刘通,陈松涛,卢仰泽,赵科,柏彬,李东鑫.车载油浸式空心电抗器工频磁场计算[J].高压电器,2020,56(05):74-78. DOI： 10.13296/j.1001-1609.hva.2020.05.012.

LIU Tong, CHEN Songtao, LU Yangze, et al. Calculation of Power-frequency Magnetic Filed for Vehicle-mounted Oil-immersed Air-cored Reactor[J]. High voltageapparatus, 2020, 56(5): 74-78. DOI： 10.13296/j.1001-1609.hva.2020.05.012.

摘要

车载油浸式空心电抗器没有铁心

在进行特高压GIL交流耐压试验时工作电压高

工作电流大

可能在周围产生较强的磁场。为确保现场试验人员和电抗器周边设备的安全

研究电抗器周围工频磁场分布十分必要。文中对车载油浸式电抗器进行了电路建模

然后基于毕奥—萨伐尔定律计算了车载油浸式空心电抗器周围工频磁场分布。文中计算得到的结果与有限元法计算结果相符。相比有限元法

文中算法对计算机性能要求低

计算速度快

能提高电抗器工频磁场计算效率。同时文中计算得到车载油浸式空心电抗器周围工频磁场分布可为特高压GIL现场耐压试验制定安全准则提供参考。

Abstract

The vehicle-mounted oil-immersed air-cored reactor has no core

and strong magnetic field may occur during UHV GIL voltage withstand test.To investigate the magnetic flux density around the reactor

a circuit model of the reactor is set up and the power-frequency magnetic flux density around the reactor is calculated based on the BiotSavar’s law.The calculation result is equal to the result of finite element method.The proposed algorithm has lower requirement for computer performance and faster computation speed

compared with the finite element method.The obtained power-frequency magnetic flux density distribution around the reactor may be taken as reference in formulation of safety regulation for UHV GIL voltage withstand test.

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