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Addressing Amplitude and Phase Coupling Problem in Grid Synchronization Systems
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DOI：10.1109/TIE.2022.3231274.png)
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Abstract
En 中文
In many grid synchronization systems (GSSs), amplitude and phase estimation loops are dynamically coupled. It means that a change in the input voltage amplitude may result in spurious phase/frequency transients in the GSS output and vice versa. This article aims to explain the reason behind this coupling and present some guidelines to mitigate it. Several case studies are provided, and numerical and experimental results are presented to make all this more clear.
Keywords:
Phase locked loops
Frequency locked loops
Frequency estimation
Frequency control
Transient analysis
Frequency synchronization
Couplings
Amplitude estimation
decoupling
frequency-locked loop (FLL)
grid synchronization
phase-locked loop (PLL)
three-phase systems
transient response
Journal
IF:
7.2
Papers:
1.8W
Citations:
9.8W
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