低通滤波器LPF对谐波检测电路影响的研究
Research on the Impact of Low Pass Filter LPF on Harmonics Detection Circuit
DOI: 10.12677/sg.2012.21002, PDF, HTML, 下载: 3,401  浏览: 11,373 
作者: 芮翔：当涂供电公司，马鞍山
关键词: 瞬时无功功率理论；谐波检测；低通滤波器；Instantaneous Reactive Power Theory; Harmonics Detection; Low Pass Filter
摘要: 本文对基于瞬时无功功率理论的谐波电流检测法进行了研究，并利用MATLAB/SIMULINK就其中的低通滤波器对谐波电流检测效果的影响进行了仿真实验。结果表明LPF的截止频率、阶数和类型对检测电路的动态响应过程、检测精度都有很大影响，从而为谐波检测电路中LPF的选取提供了指导。
Abstract: This paper has researched the harmonics current detection method based on instantaneous reactive power theory, and the impact which low pass filter has on harmonics current detecting has been simulated by MAT-LAB/ SIMULINK. The simulation results show that the dynamic response and the detection precision can be greatly influ-enced by the cut-off frequency, order and type of the low pass filter in the harmonics detection circuit. Thus this can provide guidance for the selection of LPF in harmonics detection circuit.
文章引用：芮翔. 低通滤波器LPF对谐波检测电路影响的研究[J]. 智能电网, 2012, 2(1): 5-9. http://dx.doi.org/10.12677/sg.2012.21002

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