| 谐波及无功分量实时检测的一种小波方法 |
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| 引用本文： | 王群,耿云玲.谐波及无功分量实时检测的一种小波方法[J].测试技术学报,2007,21(4):283-287. |
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| 作者姓名： | 王群 耿云玲 |
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| 作者单位： | 1. 长沙航空职业技术学院,湖南,长沙,410124;国防科技大学,湖南,长沙,410073
2. 国防科技大学,湖南,长沙,410073 |
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| 摘 要： | 从小波函数的带通性质出发,利用小波变换在不同尺度下对非正弦电流信号进行检测,由此得出了它的基波和谐波分量及其有效值. 通过重构基波分量与电源电压之间的相位差,求得了信号中的基波无功电流分量. 为说明所提出检测方法的有效性,进行了相应的仿真研究,并讨论了影响检测精度的因素.
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| 关 键 词： | 电能质量 小波变换 谐波分量 无功分量 检测 |
| 文章编号： | 1671-7449（2007）04-0283-05 |
| 收稿时间： | 2006-12-07 |
| 修稿时间： | 2006年12月7日 |
A Real-Time Detection Method for Harmonic and Reactive Components Based on Wavelet Transform |
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| WANG Qun,GENG Yunling.A Real-Time Detection Method for Harmonic and Reactive Components Based on Wavelet Transform[J].Journal of Test and Measurement Techol,2007,21(4):283-287. |
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| Authors: | WANG Qun GENG Yunling |
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| Affiliation: | 1. Changsha Aeronautical Vocational and Technical College, Changsha 410124,,China; 2, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | From the band-pass property of wavelet function, a non-sinusoidal current signal is detected based on wavelet transform under different scales, the fundamental and harmonic components in the signal and their RMSes are obtained thereby. The fundamental reactive current component is evaluated by the reconstruction of the phase difference between the fundamental component and the power source voltage. Appropriate simulation investigations are made to show the feasibility of the detection approach, and the factors affecting detection precision are discussed. |
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| Keywords: | power quality wavelet transform harmonic component reactive component detection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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