Offset rejection for PLL based synchronization in grid-connected converters
Publikation: Forskning - peer review › Konferenceartikel i proceeding
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Offset rejection for PLL based synchronization in grid-connected converters. / Ciobotaru, Mihai; Teodorescu, Remus; Agelidis, Vassilios.
Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2008: Proceedings. IEEE, 2008. s. 1611-1617.Publikation: Forskning - peer review › Konferenceartikel i proceeding
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TY - GEN
T1 - Offset rejection for PLL based synchronization in grid-connected converters
A1 - Ciobotaru,Mihai
A1 - Teodorescu,Remus
A1 - Agelidis,Vassilios
AU - Ciobotaru,Mihai
AU - Teodorescu,Remus
AU - Agelidis,Vassilios
PB - IEEE
PY - 2008
Y1 - 2008
N2 - Grid-connected converters rely on fast and accurate detection of the phase angle, amplitude and frequency of the utility voltage to guarantee the correct generation of the reference signals. An important issue associated with accurate grid voltage monitoring is the presence of an offset in the measured grid voltage. This voltage offset is typically introduced by the measurements and data conversion processes and causes errors for the estimated parameters of the grid voltage. Accordingly, this paper presents an offset rejection method for grid-connected converters based on a phase-lockedloop (PLL) technique. The offset rejection method relies on the second order generalized integrator (SOGI) having the advantages of a simple implementation independent of the grid frequency and avoidance of filtering delays due to its resonance at the fundamental frequency. Selected experimental results validate the performance and robustness of the proposed offset rejection method.
AB - Grid-connected converters rely on fast and accurate detection of the phase angle, amplitude and frequency of the utility voltage to guarantee the correct generation of the reference signals. An important issue associated with accurate grid voltage monitoring is the presence of an offset in the measured grid voltage. This voltage offset is typically introduced by the measurements and data conversion processes and causes errors for the estimated parameters of the grid voltage. Accordingly, this paper presents an offset rejection method for grid-connected converters based on a phase-lockedloop (PLL) technique. The offset rejection method relies on the second order generalized integrator (SOGI) having the advantages of a simple implementation independent of the grid frequency and avoidance of filtering delays due to its resonance at the fundamental frequency. Selected experimental results validate the performance and robustness of the proposed offset rejection method.
SN - 978-1-4244-1873-2
BT - Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2008
T2 - Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2008
SP - 1611
EP - 1617
ER -