On the Destabilizing Mechanism of Nonuniform Damping in Grid-Forming Converters Penetrated Multi-Machine System

J Lei, X Xiang, Q Qu, W Li, X He - IEEE Transactions on Power …, 2024 - ieeexplore.ieee.org
The nonuniform large damping introduced by grid-forming (GFM) converters in multi-
machine system could destabilize the power system under large disturbance, which may …

Low/Middle-Frequency Positive External-Damping Design Under Self-Stability Constraint for Inner Control Loop of Grid-Forming Converters

X Li, C Chen, Y Sun, H Cheng - IEEE Transactions on Industrial …, 2023 - ieeexplore.ieee.org
The inner voltage control loop and inductor current active damping loop of grid-forming
(GFM) converters perform the output voltage control and filter resonance damping, and their …

Transient stability of hybrid power systems dominated by different types of grid-forming devices

X He, S Pan, H Geng - IEEE Transactions on Energy …, 2021 - ieeexplore.ieee.org
This paper investigates the transient stability of power systems co-dominated by different
types of grid-forming (GFM) devices. Synchronous generators (SGs and VSGs) and droop …

[HTML][HTML] Small-signal synchronization stability of grid-forming converter influenced by multi time-scale control interaction

G Wang, L Fu, Q Hu, C Liu, Y Ma - Energy Reports, 2023 - Elsevier
The grid-forming (GFM) converters that simulate the dynamics of synchronous generators
(SGs) and actively participate in grid voltage and frequency regulation are increasingly …

Small-Signal Modeling and Analysis of Multi-GFM System

Y Zhao, X Quan, Z Wu, L Zhu… - 2021 IEEE Sustainable …, 2021 - ieeexplore.ieee.org
As the increasing penetration of inverter-based distributed generations (DG) reduces the
inertia of the power system, the stability of the system under small disturbances is …

Motor-generator pair for improving the transient stability of grid-connected renewable energy

J Chen, Y Zhang, Y Xue, Q Zhao… - 2020 IEEE 4th …, 2020 - ieeexplore.ieee.org
The renewable energy grid-connection has a negative influence on the transient stability of
the power grid for the lack of voltage support and damping control capability. This paper …

Frequency Characteristics of the Synchronous Motor-Generator Pair to Elevate the Upper Limit Penetration Rate of Renewable Energy Sources

G Li, E Shang, Q Wu, C Li, J Kang - IEEE Access, 2022 - ieeexplore.ieee.org
With the increase of renewable energy sources (RES) in power systems, the number of
traditional synchronous generators (SGs) declines gradually, which leads to a decrease in …

Modeling and Stability Analysis of Multi-parallel Grid-Connected PCSs

M Tang, Z Pei, Y Shen, Q Wang - 2021 IEEE/IAS Industrial and …, 2021 - ieeexplore.ieee.org
Aiming at the resonant issue of multi-parallel grid-connected power conversion systems
(PCSs), a method to suppress resonance spikes of the system is proposed, and the stability …

Small signal stability of synchronous motor-generator pair for power system with high penetration of renewable energy

Q Wu, Y Huang, C Li, Y Gu, H Zhao, Y Zhan - IEEE Access, 2019 - ieeexplore.ieee.org
With the increase of renewable energy in power system, the usage of a large number of
converters brings safety and stability issues to power system, including lack of reliable …

Dynamic interaction analysis and damping control strategy of hybrid system with grid-forming and grid-following control modes

P Sun, H Xu, J Yao, Y Chi, S Huang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The dynamic behavior of converters with different synchronous control modes is significantly
different. Therefore, the renewable energy grid-connected system cannot be equivalent as …