Addressing Amplitude and Phase Coupling Problem in Grid Synchronization Systems

Addressing Amplitude and Phase Coupling Problem in Grid Synchronization Systems

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 cou...

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Veröffentlicht in:IEEE transactions on industrial electronics (1982) 2023-08, Vol.70 (8), p.8140-8150
Hauptverfasser: Golestan, Saeed, Guerrero, Josep M., Abusorrah, Abdullah M., Rawa, Muhyaddin J. H., Vasquez, Juan C., Rodriguez, Jose
Format: Artikel
Sprache:eng
Schlagworte:
Amplitude estimation
Amplitudes
Coupling
Couplings
decoupling
Frequency control
Frequency estimation
Frequency locked loops
Frequency synchronization
frequency-locked loop (FLL)
grid synchronization
Phase locked loops
phase-locked loop (PLL)
Synchronism
three-phase systems
Transient analysis
transient response
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Beschreibung
Zusammenfassung: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.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2022.3231274