Generalized Stabilizer-Oriented Design for GFVSG Integrated Into Weak-Stiffness Power Networks

This letter proposes a generalized stabilizer-oriented design method for grid-forming virtual synchronous generator (GFVSG) attached to weak-stiffness power networks, where a rate of change of frequency feedforward control strategy (RoCoF-FCS) is put forward to improve frequency stability, enhance d...

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Bibliographic Details
Published in:IEEE transactions on power systems 2022-11, Vol.37 (6), p.4958-4961
Main Authors: Li, Chang, Yang, Yaqian, Li, Yong, Cao, Yijia, Murashov, Iurii, Xu, Jiazhu, Aleshina, Alena, Blaabjerg, Frede
Format: Article
Language:English
Subjects:
aperiodic loss of synchronization
Damping
Feedforward control
Feedforward systems
Frequency control
Frequency stability
generalized stabilizer-oriented design
Power system stability
rate of change of frequency feedforward control strategy
Stability analysis
Stiffness
Synchronism
Synchronization
Synchronous generators
Virtual synchronous generator
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Summary:This letter proposes a generalized stabilizer-oriented design method for grid-forming virtual synchronous generator (GFVSG) attached to weak-stiffness power networks, where a rate of change of frequency feedforward control strategy (RoCoF-FCS) is put forward to improve frequency stability, enhance damping performance, and avoid aperiodic loss of synchronization (ALoS). In addition, the feedback analytical framework, which connects RoCoF and rate of change of voltage (RoCoV), is proposed to identify both wideband oscillation and ALoS. Finally, the proposed method is validated by time-domain simulations.
ISSN:0885-8950
1558-0679
DOI:10.1109/TPWRS.2022.3193032