郝淑娟,何巍巍,刘永皓,崔海瑛,邱忠阳

• 1:大庆师范学院

摘要(Abstract)：

针对传统检测方法在检测电网谐波时,一直存在对二次谐波电压及电流含有率检测不准确,谐波失真的问题,提出基于神经网络的二次谐波检测方法。以谐波检测原理为依据,采用奈奎斯特定理,对二次谐波信号进行采集,并通过小波变换将二次谐波信号划分为低频信号和高频信号,通过FFT算法处理低频信号,并对谐波信号进行自适应噪声对消处理,引入神经网络算法,选取激活函数及初始权值,实现对二次谐波的检测。实验结果表明,采用改进方法对二次谐波的检测,相比传统检测方法,其检测结果准确,失真率降低,具有一定的实用性。

关键词(KeyWords)： 电网;二次谐波检测;神经网络;小波变换;噪声对消;谐波失真

Abstract:

Keywords:

基金项目(Foundation): 黑龙江省青年科学基金项目(QC2015066);; 大庆师范学院自然科学基金项目(12ZR13)~~

作者(Author): 郝淑娟,何巍巍,刘永皓,崔海瑛,邱忠阳

DOI: 10.16652/j.issn.1004-373x.2018.18.040

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