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。
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 fiat 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.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2005年第21期57-62,共6页
Proceedings of the CSEE
基金
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)。
关键词
数学形态学
电能质量
谐波检测
扰动定位
Mathematical morphology （MM）
Power quality
Harmonics detection
Disturbances location
