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文件名称：PLL锁相环论文
文件大小：5.53MB
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更新时间：2021-01-07 11:03:18
pll锁相环
电力行业中使用到的各种锁相环技术。This paper proposes a novel grid synchronization scheme using a new phase-locked loop
(PLL) scheme based on the adaptive linear optimal filtering (ALOF) technique. The problem
formulation of the proposed ALOF is based on decomposing grid voltage signal into inner
product of two vectors, namely, the vector of trigonometric functions and the vector of
coefficients, corresponding to the input vector and the weight vector of the closed-loop
adaptation algorithm by using least-mean-square (LMS) optimization algorithm. The coefficient
of the fundamental component of the grid voltage is used as input signal for the PLL
and the phase angles of the trigonometric functions are obtained from the output of the PLL
recursively.