[1]王 伟,魏菊芳,方 琼,等.变压器3种励磁涌流抑制措施效果比较[J].高压电器,2020,56(02):101-107.[doi:10.13296/j.1001-1609.hva.2020.02.015]
 WANG Wei,WEI Jufang,FANG Qiong,et al.Comparison of Three Kinds of Magnetizing Inrush Current Suppression Measures for Transformer[J].High Voltage Apparatus,2020,56(02):101-107.[doi:10.13296/j.1001-1609.hva.2020.02.015]
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变压器3种励磁涌流抑制措施效果比较()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第56卷
期数:
2020年02期
页码:
101-107
栏目:
研究与分析
出版日期:
2020-02-14

文章信息/Info

Title:
Comparison of Three Kinds of Magnetizing Inrush Current Suppression Measures for Transformer
作者:
王 伟1 魏菊芳1 方 琼2 刘力卿1 何思名3 关永刚3 邹 军3
(1. 国网天津市电力公司电力科学研究院, 天津 300384; 2. 国网天津市电力公司设备管理部, 天津 300010; 3. 清华大学电机工程与应用电子技术系, 北京 100084)
Author(s):
WANG Wei1 WEI Jufang1 FANG Qiong2 LIU Liqing1 HE Siming3 GUAN Yonggang3 ZOU Jun3
(1. State Grid Tianjin Electric Power Company Electric Power Research Institute, Tianjin 300384, China; 2. Equipment Management Department of State Grid Tianjin Electric Power Company, Tianjin 300010, China; 3. Department of Electrical Engineering, Tsinghua University, Beijing 100084, China)
关键词:
励磁涌流 J-A模型 预先消磁 合闸电阻 选相合闸
Keywords:
magnetizing inrush current J-A model pre-demagnetization closing resistance phase-selection closing strategy
DOI:
10.13296/j.1001-1609.hva.2020.02.015
摘要:
变压器空载合闸过程中容易产生励磁涌流,对变压器和电网中其他设备正常运行都具有很大威胁。文中首先对变压器励磁涌流产生的原理进行了分析,推导了单相变压器励磁涌流的近似表达式,并介绍了改进Jiles-Atherton(J-A)磁滞模型的理论以及使用J-A模型计算励磁涌流的方法。随后,基于PSCAD仿真软件,使用改进J-A模型,对预先消磁、合闸电阻、选相合闸3种变压器励磁涌流抑制措施进行了仿真,并分析了方法的效果及适用情形,为抑制变压器励磁涌流时方法的选择提供了参考。
Abstract:
It is easy to generate magnetizing inrush current during the no-load closing process of transformers, which poses a great threat to the transformer and other equipment in the power grid. In this paper, the principle of magnetizing inrush current is analyzed and the approximate expression of single-phase transformer excitation inrush current is derived. The theory of improved Jiles-Atherton(J-A) hysteresis model and the method of calculating magnetizing inrush current using J-A model are introduced. Then, based on the PSCAD simulation software, the improved J-A hysteresis model is used to simulate the effect of pre-demagnetization, closing resistance and phase-selection closing strategy onmagnetizing inrush current, and theapplicable situations of the methods are analyzed to provide references for the selection of methods.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-10-17; 修回日期:2019-12-26王 伟(1983—),男,硕士,高级工程师,研究方向为电力设备状态评价与故障诊断。魏菊芳(1985—),女,硕士,高级工程师,研究方向为电力设备状态与故障诊断。方 琼(1978—),女,硕士,高级工程师,研究方向为电力设备状态与故障诊断。刘力卿(1987—),男,博士,工程师,研究方向为电力设备状态评价与故障诊断。何思名(1997—),男,硕士研究生,研究方向为变压器电磁理论。关永刚(1974—),男,研究员,研究方向为高压电器与电磁暂态技术。邹 军(1971—),男,教授,研究方向为电磁场理论及应用、电力系统电磁兼容(通讯作者)。
更新日期/Last Update: 2020-02-14