Integration Analysis of VSG-based IBRs on Power System Dynamics

Date

2022-01-01

Author

Xue, Tao
Bu, Siqi
Karaağaç, Ulaş
Kocar, Ilhan

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Inverter-based resources (IBRs) are key components in future power electronics dominated power systems. Virtual synchronous generator control-based IBRs will take the role of a certain number of synchronous generators (SGs). Although VSG imitates SG using control loops, it still demonstrates different dynamic performances and is worth a careful study. This paper mainly focuses on the impact of VSGs on power system inter-area oscillations. SGs in different locations are either completely or partially substituted with VSGs in Kundur's two-area-four-machine system to examine the influence of VSGs on system oscillatory dynamics. The impact of VSG control parameters on local and inter-area oscillation modes is also investigated. The results show that the damping coefficient of the active power loop DPis crucial to system stability. The VSG with a properly designed DPis advised to completely substitute an SG with a high participation factor to provide more damping to both local and inter-area oscillation modes.

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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85174654170&origin=inward
https://hdl.handle.net/11511/114795

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Department of Electrical and Electronics Engineering, Conference / Seminar