Grid-forming converters: Control approaches, grid-synchronization, and future trends—A review

R Rosso, X Wang, M Liserre, X Lu… - IEEE Open Journal of …, 2021 - ieeexplore.ieee.org
In the last decade, the concept of grid-forming (GFM) converters has been introduced for
microgrids and islanded power systems. Recently, the concept has been proposed for use in …

Grid-synchronization stability of converter-based resources—An overview

X Wang, MG Taul, H Wu, Y Liao… - IEEE Open Journal …, 2020 - ieeexplore.ieee.org
This paper presents an overview of the synchronization stability of converter-based
resources under a wide range of grid conditions. The general grid-synchronization …

Revisiting grid-forming and grid-following inverters: A duality theory

Y Li, Y Gu, TC Green - IEEE Transactions on Power Systems, 2022 - ieeexplore.ieee.org
Power electronic converters for integrating renewable energy resources into power systems
can be divided into grid-forming and grid-following inverters. They possess certain …

Transient stability of voltage-source converters with grid-forming control: A design-oriented study

D Pan, X Wang, F Liu, R Shi - IEEE Journal of Emerging and …, 2019 - ieeexplore.ieee.org
Driven by the large-scale integration of distributed power resources, grid-connected voltage-
source converters (VSCs) are increasingly required to operate as grid-forming units to …

Current limiting control with enhanced dynamics of grid-forming converters during fault conditions

MG Taul, X Wang, P Davari… - IEEE Journal of Emerging …, 2019 - ieeexplore.ieee.org
With an increasing capacity in the converter-based generation to the modern power system,
a growing demand for such systems to be more grid-friendly has emerged. Consequently …

An overview of assessment methods for synchronization stability of grid-connected converters under severe symmetrical grid faults

MG Taul, X Wang, P Davari… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Grid-connected converters exposed to weak grid conditions and severe fault events are at
risk of losing synchronism with the external grid and neighboring converters. This …

A modified sequence-domain impedance definition and its equivalence to the dq-domain impedance definition for the stability analysis of AC power electronic systems

A Rygg, M Molinas, C Zhang… - IEEE Journal of Emerging …, 2016 - ieeexplore.ieee.org
Representation of ac power systems by frequency-dependent impedance equivalents is an
emerging technique in the dynamic analysis of power systems including power electronic …

Design-oriented transient stability analysis of PLL-synchronized voltage-source converters

H Wu, X Wang - IEEE Transactions on Power Electronics, 2019 - ieeexplore.ieee.org
Differing from synchronous generators, there are lack of physical laws governing the
synchronization dynamics of voltage-source converters (VSCs). The widely used phase …

Modeling and transient stability analysis for type-3 wind turbines using singular perturbation and Lyapunov methods

Y Ma, D Zhu, Z Zhang, X Zou, J Hu… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Wind turbines (WTs) are prone to transient instability during weak grid faults, which is
caused by their complex interactions. However, it is a challenge to analyze the transient …

Large signal synchronizing instability of PLL-based VSC connected to weak AC grid

Q Hu, L Fu, F Ma, F Ji - IEEE Transactions on Power Systems, 2019 - ieeexplore.ieee.org
Similar large signal synchronizing instability that is common in traditional power system also
exists in voltage source converter (VSC) dominated power system, which is increasingly …