Analysis of Input Phase for PLL in Dynamic Environment

Yao Xuan Feng; Hai Bao

doi:10.4028/www.scientific.net/AMM.668-669.669

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 668-669Analysis of Input Phase for PLL in Dynamic...

Analysis of Input Phase for PLL in Dynamic Environment

Abstract:

In dynamic operating environment, it is one of key issues in the research field of electric energy metering that the accuracy of synchronous sampling signal based on phase locked technology. Because operating environment changes from steady state to dynamic, analytical description of PLL input signal becomes an urgent problem to be solved. In this paper, dynamic signal is analyzed mathematically by using zero-crossing detection theory, its phase expression is obtained, then mathematical equivalent conversion is made based on operation characteristics of PLL, its phase input equation is obtained, finally the correctness of the input equation is verified by Fourier transform method. This study lays the foundation for error analysis of electric energy metering system under dynamic condition.

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Periodical:

Applied Mechanics and Materials (Volumes 668-669)

Pages:

669-672

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.668-669.669

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Online since:

October 2014

Authors:

Yao Xuan Feng, Hai Bao

Keywords:

Dynamic Environment, Electric Energy Metering, Input Phase, PLL, Zero-Crossing Detection

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