Arbitrarily Fast Delayed Signal Cancellation ...
Document type :
Compte-rendu et recension critique d'ouvrage
Title :
Arbitrarily Fast Delayed Signal Cancellation PLL for Grid-Integration of Renewable Energy Sources
Author(s) :
Ahmed, Hafiz [Auteur]
Ushirobira, Rosane [Auteur]
Efimov, Denis [Auteur]
Finite-time control and estimation for distributed systems [VALSE]
Ushirobira, Rosane [Auteur]

Efimov, Denis [Auteur]

Finite-time control and estimation for distributed systems [VALSE]
Journal title :
IET Renewable Power Generation
Publisher :
Wiley
Publication date :
2022
ISSN :
1752-1416
English keyword(s) :
Delayed Signal Cancellation
PLL
Sequence Component
DC Offset
Grid-Synchronization
PLL
Sequence Component
DC Offset
Grid-Synchronization
HAL domain(s) :
Sciences de l'ingénieur [physics]/Automatique / Robotique
English abstract : [en]
Integrating renewable energy sources into an unbalanced distribution network requires fast and accurate extraction of fundamental frequency positive- and negative-sequence components from the unbalanced three-phase grid ...
Show more >Integrating renewable energy sources into an unbalanced distribution network requires fast and accurate extraction of fundamental frequency positive- and negative-sequence components from the unbalanced three-phase grid voltagesignals. For this purpose, various methods are already available in the literature. Out of them, delayed signal cancellation (DSC) is prevalent. Conventional DSC can separate the sequence components using a quarter-cycle delay. Fast DSC tools can achieve the same with less than a quarter-cycle delay. However, neither conventional nor fast DSCcan handle DC offset without requiring additional delayed signals. This article addresses this issue by proposing a mod-ified DSC to estimate the sequence components with DC offset rejection and having arbitrarily fast convergence speed,i.e., low memory requirement. Two equidistant delayed samples of the measured grid voltages/currents are required toimplement the proposed technique and can easily be applied in a phase-locked loop (PLL). Comparative experimen-tal results demonstrate the suitability of the proposed approach over other DSC methods.Show less >
Show more >Integrating renewable energy sources into an unbalanced distribution network requires fast and accurate extraction of fundamental frequency positive- and negative-sequence components from the unbalanced three-phase grid voltagesignals. For this purpose, various methods are already available in the literature. Out of them, delayed signal cancellation (DSC) is prevalent. Conventional DSC can separate the sequence components using a quarter-cycle delay. Fast DSC tools can achieve the same with less than a quarter-cycle delay. However, neither conventional nor fast DSCcan handle DC offset without requiring additional delayed signals. This article addresses this issue by proposing a mod-ified DSC to estimate the sequence components with DC offset rejection and having arbitrarily fast convergence speed,i.e., low memory requirement. Two equidistant delayed samples of the measured grid voltages/currents are required toimplement the proposed technique and can easily be applied in a phase-locked loop (PLL). Comparative experimen-tal results demonstrate the suitability of the proposed approach over other DSC methods.Show less >
Language :
Anglais
Popular science :
Non
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