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@article{Yuan:2026:10.1109/TPWRS.2026.3696553,
author = {Yuan, H and Chaudhuri, B and Tan, SC and Hui, SY},
doi = {10.1109/TPWRS.2026.3696553},
journal = {IEEE Transactions on Power Systems},
title = {A robust synchronization method for enhancing stability of IBR-dominated grids},
url = {http://dx.doi.org/10.1109/TPWRS.2026.3696553},
year = {2026}
}
TY - JOUR
AB - Inverter-based resources (IBRs) operating in gridfollowing (GFL) mode are particularly vulnerable to instabilities in weak grid conditions. This is largely due to the inherent limitations of synchronization with a phase locked loop (PLL). This paper presents a novel voltage magnitude-based synchronization (VMSync) method that ensures stable and well damped response even in very weak grid conditions, without compromising dynamic performance or adding any stabilization control components. Through comprehensive frequency- and time-domain analysis, VMSync is shown to outperform conventional synchronous reference frame PLL (SRF-PLL) for both small- and large-signal disturbances. Systems with multiple GFL inverters employing VMSync demonstrate significantly improved damping and stability. Furthermore, mixed deployment of VMSync alongside legacy SRF-PLL-based GFL inverters exhibits superior dynamic performance compared to deployment of solely SRF-PLL-based GFL inverters. The results highlight the potential of VMSync as a robust synchronization strategy to mitigate PLL-driven instabilities in power grids with high IBR penetration.
AU - Yuan,H
AU - Chaudhuri,B
AU - Tan,SC
AU - Hui,SY
DO - 10.1109/TPWRS.2026.3696553
PY - 2026///
SN - 0885-8950
TI - A robust synchronization method for enhancing stability of IBR-dominated grids
T2 - IEEE Transactions on Power Systems
UR - http://dx.doi.org/10.1109/TPWRS.2026.3696553
ER -
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