| 基于小波分析的谐波在线监测系统 |
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| 引用本文： | 屈文斌.基于小波分析的谐波在线监测系统[J].机械与电子,2020,38(11):33-36. |
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| 作者姓名： | 屈文斌 |
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| 作者单位： | 陕西工业职业技术学院,陕西 咸阳 712000 |
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| 摘 要： | 针对传统谐波在线监测系统存的结果不准确，无法描述谐波动态变化特点，设计了基于小波分析的谐波在线监测系统。首先设计了谐波在线监测系统的硬件模块，然后谐波在线监测系统的软件模块，依据小波变换分析谐波信号特征，得到的谐波变化率，从而谐波在线监测系统的监测结果，最后采用具体实验进行了谐波在线监测系统性能的仿真实验，由实验结果可知，该系统的谐波监测精度高，可以有效检测各种谐波分量，保证电力系统稳定运行。
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| 关 键 词： | 小波分析 谐波 在线监测 小波包分解树 |
Harmonic Online Monitoring System Based on Wavelet Analysis |
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| Ｑ,Ｕ,Ｗ,ｅｎｂｉｎ.Harmonic Online Monitoring System Based on Wavelet Analysis[J].Machinery & Electronics,2020,38(11):33-36. |
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| Authors: | Ｑ Ｕ Ｗ ｅｎｂｉｎ |
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| Affiliation: | Shaanxi Polytechnic Institute, Xianyang 712000, China |
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| Abstract: | In view of the inaccuracy of the traditional harmonic on-line monitoring system, which can not describe the dynamic change characteristics of harmonics, a harmonic online monitoring system based on wavelet analysis is designed. Firstly, the hardware module of the harmonic online monitoring system is designed, and then the software module of the harmonic online monitoring system is used to analyze the characteristics of the harmonic signal according to the wavelet transform, and the harmonic change rate is obtained, thus the mon itoring results of the harmonic online monitoring system are obtained. Finally, the simulation experiment of the performance of the harmonic online monitoring system is carried out by specific experiments, and the experimental results show that the system has high precision of harmonic monitoring and can effectively detect all kinds of harmonic components to ensure the stable operation of power system. |
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| Keywords: | wavelet analysis harmonics online monitoring wavelet packet decomposition tree |
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