| 基于数学形态学的谐波检测与电能质量扰动定位方法 |
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| 引用本文： | 曾纪勇,丁洪发,段献忠.基于数学形态学的谐波检测与电能质量扰动定位方法[J].中国电机工程学报,2005,25(21):0-62. |
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| 作者姓名： | 曾纪勇 丁洪发 段献忠 |
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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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| 基金项目： | 高等学校优秀青年教学和科研奖励基金、中国博士后科学基金（2003034066）. |
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| 摘 要： | 提出了一种基于数学形态学的电流（电压）谐波检测方法,通过合理地选择扁平结构元素的长度,该方法能快速、准确地检测出电流（电压）中的谐波分量.以此为基础,提出了一种快速的电能质量扰动检测和定位方法,该方法将电压幅值的平方值作为TOP-HAT变换的输入量,具有较高的检测灵敏性.系统存在噪声的情况下,该方法也有较好的检测效果.MATLAB/SIMULINK仿真结果证明了这两种方法的有效性.
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| 关 键 词： | 数学形态学 电能质量 谐波检测 扰动定位 |
| 文章编号： | 0258-8013（2005）21-0057-06 |
| 收稿时间： | 2005-05-20 |
| 修稿时间： | 2005年5月20日 |
HARMONICS-DETECTION AND DISTURBANCE LOCATION METHODS BASED ON MATHEMATICAL MORPHOLOGY |
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| ZENG Ji-yong,DING Hong-fa,DUAN Xian-zhong.HARMONICS-DETECTION AND DISTURBANCE LOCATION METHODS BASED ON MATHEMATICAL MORPHOLOGY[J].Proceedings of the CSEE,2005,25(21):0-62. |
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| Authors: | ZENG Ji-yong DING Hong-fa DUAN Xian-zhong |
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| Abstract: | A detection method based on mathematical morphology (MM) is proposed to detect harmonic current (voltage) components. The harmonics can be detected fast and accurately by this method with selecting the length of morphological flat structure element. And a processing method based on MM is also proposed to locate the disturbances of the voltage signals distorted by noise. The input of the TOP-HAT transformation is the square value of the magnitude of the detected voltage, which ensure the sensitivity of the detection. MATLAB /SIMULINK is employed for the simulation studies of two methods. The simulation results show that these proposed methods are effective. |
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| Keywords: | Mathematical morphology (MM) Power quality Harmonics detection Disturbances location |
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