| 自适应采样值差动在变压器保护中的应用 |
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| 引用本文： | 胡玉峰,陈德树,尹项根,张哲.自适应采样值差动在变压器保护中的应用[J].电力系统自动化,2001,25(10):31-34. |
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| 作者姓名： | 胡玉峰 陈德树 尹项根 张哲 |
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| 作者单位： | 华中科技大学电力系, |
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| 摘 要： | 在简要介绍基于采样值差动的变压器保护的基础上，重点分析了采样值差动的灵敏度和可靠性问题，并提出了自适应的采样值差动保护。动模实验数据表明，自适应采样值差动可有效地将变压器制动特性与励磁涌流的鉴别结合起来，并具有较高的灵敏度。
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| 关 键 词： | 变压器保护 采样值差动 励磁涌流 自适应原理 元件保护 继电保护 电力系统 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
SAMPLING VALUE BASED ADAPTIVE DIFFERENTIAL CURRENT PROTECTION OF TRANSFORMERS |
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| Hu Yufeng,Chen Deshu,Yin Xianggen,Zhang Zhe.SAMPLING VALUE BASED ADAPTIVE DIFFERENTIAL CURRENT PROTECTION OF TRANSFORMERS[J].Automation of Electric Power Systems,2001,25(10):31-34. |
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| Authors: | Hu Yufeng Chen Deshu Yin Xianggen Zhang Zhe |
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| Abstract: | According to the different am plitude ratios of the maximum differential current to a low value threshold during faults,the sampling value based transformer protection is studied,with different number of continuous sam ples to m eet the need of the operating criteria.Analysis results based on fault current data obtained from the dynamic tests have shown that this method can greatly raise the sensitivity of transform er protection without m al- function caused by magnetizing inrush current. |
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| Keywords: | transformer protection sampling value based differential protection magnetizing inrush current adaptive theor |
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