电测与仪表2011，Vol.48Issue(4)：13-17,5.
同步采样和谐波分析方法的实现
Implementation of Synchronous Sampling and Harmonics Analysis Method
郭敏 1赵成勇 1曹东升 1赵静 1孙一莹1
作者信息
- 1. 华北电力大学电气与电子工程学院,河北保定071003
- 折叠
摘要
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 harmonic of power systems. The implementation of the algorithm is described in detail. The simulation results have showed that the accuracy of harmonics analysis is improved by selecting the fit window function. Finally the algorithm is applied on DSP.关键词
谐波分析/同步采样/DSP/FFT/窗函数/插值Key words
harmonics analysis/ synchronous sampling/ FFT/ window function/ interpolation分类
信息技术与安全科学引用本文复制引用
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):13-17,5.
