新型滤波器在动态电压恢复器中的应用研究

郝晓弘, 房善新, 陈伟

郝晓弘, 房善新, 陈伟. 新型滤波器在动态电压恢复器中的应用研究[J]. 工矿自动化, 2010, 36(8): 77-81.
引用本文: 郝晓弘, 房善新, 陈伟. 新型滤波器在动态电压恢复器中的应用研究[J]. 工矿自动化, 2010, 36(8): 77-81.
HAO Xiao-hong, FANG Shan-xin, CHEN Wei. Application Research of a New Type of Filter for Dynamic Voltage Restorer[J]. Journal of Mine Automation, 2010, 36(8): 77-81.
Citation: HAO Xiao-hong, FANG Shan-xin, CHEN Wei. Application Research of a New Type of Filter for Dynamic Voltage Restorer[J]. Journal of Mine Automation, 2010, 36(8): 77-81.

新型滤波器在动态电压恢复器中的应用研究

基金项目: 

甘肃省自然科学基金项目(0809RJZA006)

甘肃省科技攻关项目(GS044-A52-001-24)

详细信息
  • 中图分类号: TM761.1

Application Research of a New Type of Filter for Dynamic Voltage Restorer

  • 摘要: 在分析目前应用较多的电压峰值检测法、傅里叶变换法、小波变换法、d-q变换法和pqr瞬时功率法等电压暂降检测方法的基础上,提出了基于瞬时无功功率理论的动态电压恢复器检测算法;针对传统的一个ButterWorth低通滤波器存在实时性差的问题,设计了采用一个带阻滤波器和一个高截止频率ButterWorth低通滤波器串联而成的新型滤波器。Matlab/Simulink仿真结果表明,该新型滤波器能够在保证精度的基础上将检测时间缩短到约1/3个基波周期,提高了电压暂降检测的实时性。
    Abstract: On basis of analysis of detection methods of voltage sag such as voltage peak detection method,Fourier transform method,wavelet transform method,d-q transformation method and pqr instantaneous power method,the paper proposed a detection algorithm of dynamic voltage restorer(DVR) based on instantaneous reactive power theory.For the problem of poor real-time of a traditional ButterWorth low pass filter,it designed a new type of filter which is consisted of a band-stop filter in series with a low pass filter.The simulation results in Matlab/Simulink showed that the new type of filter can reduce the detection time to one third of fundamental cycle without reducing precise,and improve the real time of voltage sag detection.
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出版历程
  • 刊出日期:  2010-08-09

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