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Principle and Performance of the Three-Phase Digital Phase-Locked Loop
Author(s): 
Pages: 94-99,121
Year: Issue:  10
Journal: Transactions of China Electrotechnical Society

Keyword:  三相锁相环偏移不对称谐波变频仿真;
Abstract: 分析了三相锁相环的基本原理、特性及各种输入情况下锁相环的输出性能.通过理论推导,在三相输入信号存在直流偏移、不对称、谐波等干扰情况下,分析了三相锁相环的检测相位误差,得出谐波的含量.并通过仿真研究,验证了三相输入信号存在直流偏移、不对称、谐波等干扰情况下,仿真结果与理论推导一致.并对相位突变和频率突变的情况进行了仿真研究,说明在相位和频率发生变动时三相锁相环仍能有效地锁定相位,能够满足系统变频的要...
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