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文章摘要
采用自适应陷波器的电压暂降检测方法
Detection Method of Voltage Sag through Employing Adaptive Notch Filter
Received:October 30, 2013  Revised:October 30, 2013
DOI:
中文关键词: 电压暂降  自适应性陷波器  相电压幅值  频率自适应
英文关键词: voltage sag  adaptive notch filter  phase voltage amplitude  adaptive frequency
基金项目:
Author NameAffiliationE-mail
Feng Hao* State Grid Chongqing Changshou Power Company,Chongqing Changshou,401220 282269726@qq.com 
Cao Yun-xuan State Grid Chongqing Changshou Power Company,Chongqing Changshou,401220  
Du Yin-bo State Grid Chongqing Changshou Power Company,Chongqing Changshou,401220  
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中文摘要:
      随着科技的发展,用电设备对电能质量的要求越来越高,电压暂降问题越来越受到重视,其中准确的电压暂降检测是治理电压暂降问题的前提。本文提出采用自适应陷波器结构的滤波功能,结合频率自适应方法,可以准确的检测出频率变化时的相电压的基波信号及其正交信号,从而可以求得电压的幅值和相位信息,达到电压暂降检测的目的。该方法结构简单,抑制谐波影响,适应频率变化,仿真和实验结果均表明,采用自适应陷波器的电压暂降检测方法,可以准确的获得每相电压的电压暂降信息。
英文摘要:
      With the development of technology, the requirements of electrical equipment for power quality are higher. Voltage sag problem is getting more attentions, where accurate detection of voltage sag is the premise of compensating the question of voltage sag. In this paper, employing the filter function of the structure adaptive notch filter and frequency adaptive method can accurately detect the fundamental phase voltage signal and the quadrature signal under frequency changing. Thus, it can obtain the amplitude and phase information of the voltage, and reaches the voltage sag detection. The method is simple, and eliminates harmonic influence, and adapts frequency changing. Simulation and experimental results show that voltage sag detection method employing the adaptive notch filter can accurately obtain the voltage of each phase voltage sag information.
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