| 一种简单实用的电能质量扰动检测方法 |
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| 引用本文： | 朱韬析,江道灼.一种简单实用的电能质量扰动检测方法[J].电力系统保护与控制,2005,33(7):46-49. |
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| 作者姓名： | 朱韬析 江道灼 |
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| 作者单位： | 浙江大学电气工程学院,浙江 杭州 310027 |
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| 摘 要： | 提出了一种简单实用的电能质量扰动检测方法:首先对原始信号做差分处理,通过监测差变信号中的突变起始点,检测是否有扰动出现;接着分三种情况检测扰动的持续时间;然后在存在扰动的区域内应用快速傅里叶算法计算扰动幅度。各种扰动信号的仿真结果表明,该方法快速、准确,有较高的实用价值。
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| 关 键 词： | 电能质量 时域 工频周期 傅里叶算法 |
| 文章编号： | 1003-4897(2005)07-0046-04 |
| 修稿时间： | 2004年7月16日 |
A simple and practical method of measuring short duration power quality disturbances |
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| ZHU Tao-xi,JIANG Dao-zhuo.A simple and practical method of measuring short duration power quality disturbances[J].Power System Protection and Control,2005,33(7):46-49. |
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| Authors: | ZHU Tao-xi JIANG Dao-zhuo |
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| Abstract: | A simple and practical method of measuring duration power quality disturbances is introduced. A differential signal is formed firstly for detecting the beginning time of the disturbance; then ending time when the lasting time is more than, equal to and less than one primitive period are located respectively; at last, the range of the disturbance is calculated through Fourier transform. Simulation results of various disturbance signals demonstrate the proposed method is fast, accurate and useful. |
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| Keywords: | power quality time domain primitive period Fourier transform |
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