| 配网用电压互感器带电更换技术 |
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| 引用本文： | 刘 俭,刘 浩,姜春阳,殷小东,周 峰,袁建平,刘 鹍.配网用电压互感器带电更换技术[J].科学技术与工程,2019,19(26):244-248. |
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| 作者姓名： | 刘 俭 刘 浩 姜春阳 殷小东 周 峰 袁建平 刘 鹍 |
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| 作者单位： | 中国电力科学研究院有限公司,武汉,430074;国网四川省电力公司电力科学研究院,成都,610041 |
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| 基金项目： | 国家电网公司科技项目(JL71-17-004) |
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| 摘 要： | 针对目前配网供电可靠性差、配网电压互感器停电检修困难、无法进行带电更换的问题,首先在MATLABH/Simulink平台下建立了考虑非线性电感和非线性电阻的饱和电压互感器模型。对电压互感器带电接入电磁暂态过程进行仿真的基础上,提出串联阻尼电阻减小电磁暂态过程中励磁涌流的方法。根据仿真优化结果,对配网用电压互感器带电更换装置进行结构设计,并在现场运行条件下实现电压互感器的带电更换。
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| 关 键 词： | 电压互感器 电磁暂态仿真 带电更换 |
| 收稿时间： | 2019/2/22 0:00:00 |
| 修稿时间： | 2019/6/17 0:00:00 |
Research on Live replacement Technology of Voltage Transformer for Distribution Network |
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| LIU Jian,LIU Hao,JIANG Chun-yang,YIN Xiao-dong,ZHOU Feng,YUAN Jian-ping and LIU Kun.Research on Live replacement Technology of Voltage Transformer for Distribution Network[J].Science Technology and Engineering,2019,19(26):244-248. |
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| Authors: | LIU Jian LIU Hao JIANG Chun-yang YIN Xiao-dong ZHOU Feng YUAN Jian-ping and LIU Kun |
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| Institution: | China Electric Power Research Institute,,,,,, |
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| Abstract: | In order to solve the difficult problem of replacing voltage transformer of distribution network in live, this paper established a saturated voltage transformer model considering nonlinear inductance and nonlinear resistance under matlab/simulink platform firstly. Simulated the electromagnetic transient process of voltage transformer of accessing to the power system in live, and proposed the method of reducing the magnetizing inrush current by damping resistor. Finally, designed the structure of the live replacement voltage transformer and realized live replacement of voltage transformer under field operating conditions. |
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| Keywords: | voltage transformer electromagnetic transient simulation replace in live |
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