| 同步采样和谐波分析方法的实现 |
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| 引用本文： | 郭敏,赵成勇,曹东升,赵静,孙一莹.同步采样和谐波分析方法的实现[J].电测与仪表,2011,48(4):13-17. |
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| 作者姓名： | 郭敏 赵成勇 曹东升 赵静 孙一莹 |
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| 作者单位： | 华北电力大学电气与电子工程学院; |
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| 摘 要： | 为了减小因非同步采样和非整数次周期截断造成的影响,提高电力系统谐波分析的精度,本文简述了一种基于DSP的电力系统谐波分析装置的总体结构.在讨论了非同步采样造成的栅栏效应误差之后,提出了同步采样的实现方法.为减小频谱泄露的影响,采用加窗双峰谱线插值的FFT算法分析电力系统谐波,并对算法的实现进行了详细的描述,仿真结果显示...
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| 关 键 词： | 谐波分析 同步采样 DSP FFT 窗函数 插值 |
Implementation of Synchronous Sampling and Harmonics Analysis Method |
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| GUO Min,ZHAO Cheng-yong,CAO Dong-sheng,ZHAO Jing,SUN Yi-ying.Implementation of Synchronous Sampling and Harmonics Analysis Method[J].Electrical Measurement & Instrumentation,2011,48(4):13-17. |
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| Authors: | GUO Min ZHAO Cheng-yong CAO Dong-sheng ZHAO Jing SUN Yi-ying |
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| Affiliation: | GUO Min,ZHAO Cheng-yong,CAO Dong-sheng,ZHAO Jing,SUN Yi-ying(School of Electrical and Electronic Engineering,North China ElectricPower University,Baoding 071003,Hebei,China) |
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| Abstract: | To reduce disturbance by non-synchronous sampling and non-integral period truncation,and to improve the accuracy of harmonics analysis,a framework of the power harmonics analyzer based on DSP is introduced in this paper.After discussing the error of the fence effect by non-synchronous sampling,its implementation method is briefly put forward.In order to reduce the impact of the spectrum leakage,FFT algorithm based on window function and double peak of spectral lines interpolation is used to analyze the harm... |
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| Keywords: | harmonics analysis synchronous sampling FFT window function interpolation |
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