TY - JOUR
T1 - A Robust Synchronization to Enhance the Power Quality of Renewable Energy Systems
AU - Hadjidemetriou, Lenos
AU - Kyriakides, Elias
AU - Blaabjerg, Frede
PY - 2015/8
Y1 - 2015/8
N2 - The increasing penetration of renewable energy sources (RESs) in the power grid requires high-quality power injection under various grid conditions. The synchronization method, usually a phase-locked loop (PLL) algorithm, is directly affecting the response of the grid-side converter of the RES. This paper proposes a new PLL algorithm that uses an advanced decoupling network implemented in the stationary reference frame with limited requirements for processing time to enable a fast and accurate synchronization even under harmonic distorted voltage and low-voltage grid faults. The robust response of the proposed PLL is validated, and the effect of the proposed synchronization on the performance of the grid-connected renewable energy system is investigated. This investigation proves that the robust, accurate, and dynamic response of the new PLL can enhance the quality of the injected power from the RES and can also enable an appropriate fault-ride-through operation under harmonic distorted voltage and grid faults.
AB - The increasing penetration of renewable energy sources (RESs) in the power grid requires high-quality power injection under various grid conditions. The synchronization method, usually a phase-locked loop (PLL) algorithm, is directly affecting the response of the grid-side converter of the RES. This paper proposes a new PLL algorithm that uses an advanced decoupling network implemented in the stationary reference frame with limited requirements for processing time to enable a fast and accurate synchronization even under harmonic distorted voltage and low-voltage grid faults. The robust response of the proposed PLL is validated, and the effect of the proposed synchronization on the performance of the grid-connected renewable energy system is investigated. This investigation proves that the robust, accurate, and dynamic response of the new PLL can enhance the quality of the injected power from the RES and can also enable an appropriate fault-ride-through operation under harmonic distorted voltage and grid faults.
KW - Harmonic distortion
KW - Phase locked loops
KW - Power grids
KW - Power supply quality
KW - Power system faults
KW - Renewable energy sources
KW - Synchronisation
U2 - 10.1109/TIE.2015.2397871
DO - 10.1109/TIE.2015.2397871
M3 - Journal article
SN - 0278-0046
VL - 62
SP - 4858
EP - 4868
JO - I E E E Transactions on Industrial Electronics
JF - I E E E Transactions on Industrial Electronics
IS - 8
ER -