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增强型滑动平均滤波算法及其在畸变电网相位同步控制中的应用

, PP. 13-23

Keywords: 滑动平均滤波法,信号延时滤除法,相位同步控制,谐波滤除,畸变电网

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Abstract:

针对滑动平均滤波法(MAF)滑动长度的优化设计问题,通过量化分析得到同时滤除若干指定次谐波时MAF滑动长度应满足的充要条件,并据此提出增强型MAF(EMAF)算法以及基于EMAF的畸变电网快速开环锁相方法。此外,从动态响应时间、数据存储量、暂态振荡幅度、谐波完全滤除能力以及高频随机噪声衰减能力等方面,将EMAF与串联延迟信号对消法(CDSC)进行对比分析。各种工况下的实验结果证明了研究结论的正确性以及改进方法的先进性。

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