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| 基于相位差校正法的高精度电力谐波检测 | |
| 引用本文： | 贲树俊,葛乃成,沈晓枉.基于相位差校正法的高精度电力谐波检测[J].电测与仪表,2007,44(2):13-15,28. |
| 作者姓名： | 贲树俊 葛乃成 沈晓枉 |
| 作者单位： | 1. 江苏南通供电公司,江苏,南通,226006 2. 华东电网有限公司培训中心,上海,200438 3. 上海电力公司沪南供电分公司,上海,200030 |
| 摘 要： | 研究了基于FFT理论的电力谐波检测原理,提出一种基于相位差校正法的高精度电力谐波检测方法.文章首先从FFT的基本理论出发,推导出FFT频谱相位差校正的理论公式,给出利用该方法检测电力谐波的操作步骤.接着利用MATLAB分别仿真了基于该方法和直接FFT法的电力谐波检测精度.结果表明,该方法能够明显的提高检测精度.可以满足实际的电力谐波检测. |
| 关 键 词： | 电力系统 谐波 快速傅立叶变换 相位差 检测方法 |
| 文章编号： | 1001-1390（2007）02-0013-03 |
| 修稿时间： | 2006-10-13 |
A high accuracy harmonic measurement in power system based on phase difference correcting methods |
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| BEN Shu-jun,GE Nai-cheng,SHEN Xiao-wang.A high accuracy harmonic measurement in power system based on phase difference correcting methods[J].Electrical Measurement & Instrumentation,2007,44(2):13-15,28. | |
| Authors: | BEN Shu-jun GE Nai-cheng SHEN Xiao-wang |
| Affiliation: | 1.Jiangsu Nantong Power Supply Company,Nantong 226006, Jiangsu, China;2.East China Power Training Center, Shanghai 200438, China;3.Shanghai Electric Power Company, Shanghai 200030, China |
| Abstract: | After studying on the measurement principle of power system harmonic based on FFT theory, this paper presents a high-accuracy method based on phase difference correcting to measure the harmonic. First, theoretic formulas are deduced on the basic theory of FFT. Then the operating sequence using these formulas is proposed in this paper for power system harmonic measurement. Finally, by use of MATLAB, two methods are simulated, one based on phase difference correcting, the other on FFT. The simulation results show that the former greatly improves the measurement precision and can meet the actual use demand. |
| Keywords: | power system harmonic FFT phase difference measurement method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |