期刊文献+

基于频谱分析的闪变值测量法 被引量:1

Measurement Algorithm of Flicker Based on Spectrum Analysis
下载PDF
导出
摘要 在IEC闪变测量原理的基础上,提出基于频谱分析测量闪变值的算法。算法的核心是对半波有效值进行FFT变换,得到各个频率下的频谱值,对频谱序列进行加权得到瞬时闪变视感度,利用统计的方法算出短时闪变值。这种方法对于高频段引起的闪变有较大误差,同时,离散化采样也带来误差,在实验中我们通过调整载波的初相角来减小这些误差。 Based on the flicker measurement principle in the IEC,a new algorithm for the measurement of flicker is proposed on the basis of spectrum analysis.The core algorithm is the FFT to transform the half-wave RMS to obtain the value of each frequency spectrum.Then the instantaneous flicker visual sensitivity is calculated by weighting the value of the spectrum,the value of short term severity is obtained using statistical methods.This method for high frequency flicker caused by larger errors,while the discrete sampling has also brought the error,in the experiment we have by adjusting the initial phase angle of the carrier to reduce these errors.
作者 陈琛 杨仁刚
出处 《电测与仪表》 北大核心 2010年第4期45-48,共4页 Electrical Measurement & Instrumentation
关键词 频谱分析法 短时闪变值 FFT变换 初相角 spectrum analysis short term severity FFT transformation initial phase angle
  • 相关文献

参考文献7

二级参考文献13

  • 1向学军,杨盛,刘平.电压闪变仪的设计与仿真[J].微计算机信息,2006,22(07S):162-164. 被引量:3
  • 2孙树勤,电压波动与闪变,1999年
  • 3张志涌,掌握和精通MATLAB,1997年
  • 4王世一,数字信号处理,1987年
  • 5IEC 868.Flickermeter-Functional and Design Specification[S].1986.
  • 6IEC 868-0.Flickermeter Part 0:Evaluation of Flicker Severity[S].1991.
  • 7IEC 61000-3-3-1994.Electromagnetic Compatibility (EMC) -Part 3:Limits-Section 3:Limitation of Voltage Changes,Voltage Fluctuations and Flicker in Public Low-Voltage Supply Systems,for Equipment with Rated Current ≤ 16 A per Phase and Not Subject to Conditional Connection[S].1994.
  • 8IEC 61000-3-5-1994.Electromagnetic Compatibility (EMC)-Part 3:Limits-Section 5:Limitation of Voltage Fluctuations and Flicker in Low-Voltage Power Supply Systems for Equipment with Rated Current Greater Than 16 A[S].1994.
  • 9IEC 61000-3-7-1996.Electromagnetic Compatibility (EMC)-Part 3:Limits-Section 7:Assessment of Emission Limits for Fluctuating Loads in MV and HV Power Systems-Basic EMC Publication[S].1996.
  • 10IEC 61000-4-15-1997.Electromagnetic Compatibility (EMC) -Part 4:Testing and Measurement TechniquesSection 15:Flickermeter-Functional and Design Specifications[S].1997.

共引文献126

同被引文献4

  • 1IEC 61000 - 3 - 7, Electromagnetic compatibility ( EMC ) - Part 3 : Limits- Section 7: Limits Assessment of Emission Limits for Fluctua- tions Loads in MV and HV Power Systems[ S].
  • 2IEC 61000 - 4 - 15, Electromagnetic compatibility - Part4 : testing and measurement techniques - Section 15 : fickermeter - functional and design specification[ S].
  • 3李宁.基于高精度FFT的电压波动和闪变计算方法[C].中南七省(区)电力系统专业委员会第二十四界联合学术年会,2009,11.
  • 4庞浩,李东霞,俎云霄,王赞基.应用FFT进行电力系统谐波分析的改进算法[J].中国电机工程学报,2003,23(6):50-54. 被引量:231

引证文献1

二级引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部