| 小矢量算法浅析 |
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| 引用本文： | 文明浩,陈德树.小矢量算法浅析[J].电力系统自动化,2003,27(3):42-44. |
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| 作者姓名： | 文明浩 陈德树 |
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| 作者单位： | 华中科技大学电气与电子工程学院,湖北省武汉市,430074 |
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| 摘 要： | 文中首先简述小矢量的基本算法，通过对小矢量算法的幅频特性分析以及与全波傅里叶算法对比，得出需谨慎使用1／4工频周期小矢量算法的结论，且不推荐在距离保护中采用。然后从电流差动保护的基本原理出发，得出采用小矢量算法可以在保证可靠性的前提下有效地提高保护的动作速度，并用EMTP仿真验证了这一结论。
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| 关 键 词： | 电力系统 小矢量算法 电流差动保护 继电保护 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
SIMPLE ANALYSIS OF PHASELET ALGORITHM |
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| Wen Minghao,Chen Deshu.SIMPLE ANALYSIS OF PHASELET ALGORITHM[J].Automation of Electric Power Systems,2003,27(3):42-44. |
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| Authors: | Wen Minghao Chen Deshu |
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| Abstract: | In this paper phaselet algorithm is introduced at first. By the analysis of amplitude-frequency characteristics and the comparison with complete wave Fourier's integral, the conclusion has been made that quarter cycle phaselet algorithm should be applied carefully and shouldn't be used in distance relay protection. On the basis of current differential protection principium, phaselet algorithm can shorten trip time without any damage to the reliability. EMTP simulation verifies the correctness of this conclusion. |
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| Keywords: | phaselet transmission line current differential protection relay protection |
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