TY - JOUR
T1 - A Single-Phase Synchronization Technique for Grid-Connected Energy Storage System under Faulty Grid Conditions
AU - Saleem, Komal
AU - Ali, Zunaib
AU - Mehran, Kamyar
N1 - Funding information: This work was supported in part by the Higher Education Commission (HEC), Pakistan, and in part by the Queen Mary University of London.
PY - 2021/10/1
Y1 - 2021/10/1
N2 - The control of a single-phase grid-connected energy storage system (ESS) requires a very fast and accurate estimation of grid voltage frequency and phase angle. A phase-locked loop (PLL) based synchronization algorithm usually extracts this information. The operation and control of the entire system are directly affected by the performance of PLL. In this article, a novel advanced single-phase PLL (ASφPLL) technique with reduced complexity is proposed for the fast and accurate extraction of grid information in an ESS under distorted and abnormal grid conditions, including harmonics, interharmonics, dc offset, and grid faults. The proposed method provides a faster dynamic response, lower frequency overshoot, and accurate estimation under off-nominal grid frequencies with reduced computational complexity in comparison with the existing method. The advanced performance of the proposed ASφPLL is verified through the simulation and experimental results.
AB - The control of a single-phase grid-connected energy storage system (ESS) requires a very fast and accurate estimation of grid voltage frequency and phase angle. A phase-locked loop (PLL) based synchronization algorithm usually extracts this information. The operation and control of the entire system are directly affected by the performance of PLL. In this article, a novel advanced single-phase PLL (ASφPLL) technique with reduced complexity is proposed for the fast and accurate extraction of grid information in an ESS under distorted and abnormal grid conditions, including harmonics, interharmonics, dc offset, and grid faults. The proposed method provides a faster dynamic response, lower frequency overshoot, and accurate estimation under off-nominal grid frequencies with reduced computational complexity in comparison with the existing method. The advanced performance of the proposed ASφPLL is verified through the simulation and experimental results.
KW - Current controller
KW - dc-offset
KW - energy storage system (ESS)
KW - harmonics
KW - phase-locked loop (PLL)
KW - power quality
UR - https://www.scopus.com/pages/publications/85103895803
U2 - 10.1109/tpel.2021.3071418
DO - 10.1109/tpel.2021.3071418
M3 - Article
AN - SCOPUS:85103895803
SN - 0885-8993
VL - 36
SP - 12019
EP - 12032
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 10
M1 - 9397336
ER -