陈倩,王维庆,王海云,张家军

• 1:新疆大学可再生能源发电与并网技术教育部工程研究中心

摘要(Abstract)：

由于传统傅里叶算法在实际工程应用中都是非同步采样,存在栏栅效应和频谱泄露,导致谐波检测精度偏低。基于此问题,提出一种组合优化算法。通过分析混合卷积窗特性,提出基于混合卷积窗的四谱线插值算法,利用该算法准确检测谐波幅值和频率参数。从实际情况出发,提出基于混合卷积窗的改进全相位傅里叶算法,利用该算法对谐波相位进行检测,进而检测谐波3大参数。最后,在白噪声和频率波动影响下与传统加窗插值算法做对比分析。仿真结果表明,该组合优化算法可以有效地提高谐波检测参数精确度,抗白噪声和频率波动的能力较强。

关键词(KeyWords)： 谐波检测;快速傅里叶算法;混合卷积窗;插值;全相位傅里叶变换;组合优化算法

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51667020);; 教育部创新团队资助项目(IRT_16R63);; “天山雪松”人才培养计划资助项目(2017XS02);; 教育厅重大专项资助项目(XJEDU2017I002)

作者(Author): 陈倩,王维庆,王海云,张家军

DOI: 10.19635/j.cnki.csu-epsa.000371

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