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Volume 13
Issue 11
10.3390/pr13113432
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

A Unified Control Strategy Integrating VSG and LVRT for Current-Source PMSGs

by
Yang Yang
1,
Zaijun Wu
1,*,
Xiangjun Quan
1,
Junjie Xiong
2,
Zijing Wan
2 and
Zetao Wei
2
1
School of Electrical Engineering, Southeast University, Nanjing 210096, China
2
State Grid Jiangxi Electric Power Co., Ltd., Nanchang 330077, China
*
Author to whom correspondence should be addressed.
Processes 2025, 13(11), 3432; https://doi.org/10.3390/pr13113432 (registering DOI)
Submission received: 19 September 2025 / Revised: 19 October 2025 / Accepted: 23 October 2025 / Published: 25 October 2025
(This article belongs to the Special Issue Advances in Hydrogen Energy Systems Integration, Modeling and Optimization)
Versions Notes

Abstract

The growing penetration of renewable energy has reduced system inertia and damping, threatening grid stability. This paper proposes a novel control strategy that seamlessly integrates virtual synchronous generator (VSG) emulation with low-voltage ride-through (LVRT) capability for direct-drive permanent magnet synchronous generators (PMSGs). The unified control framework enables simultaneous inertia support during frequency disturbances and compliant reactive current injection during voltage sags—eliminating mode switching. Furthermore, the proposed strategy has been validated through both a single-machine model and actual wind farm topology. Results demonstrate that the strategy successfully achieves VSG control functionality while simultaneously meeting LVRT requirements.
Keywords: PMSG; VSG; inertia control; droop control; LVRT; CloudPSS PMSG; VSG; inertia control; droop control; LVRT; CloudPSS

Share and Cite

MDPI and ACS Style

Yang, Y.; Wu, Z.; Quan, X.; Xiong, J.; Wan, Z.; Wei, Z. A Unified Control Strategy Integrating VSG and LVRT for Current-Source PMSGs. Processes 2025, 13, 3432. https://doi.org/10.3390/pr13113432

AMA Style

Yang Y, Wu Z, Quan X, Xiong J, Wan Z, Wei Z. A Unified Control Strategy Integrating VSG and LVRT for Current-Source PMSGs. Processes. 2025; 13(11):3432. https://doi.org/10.3390/pr13113432

Chicago/Turabian Style

Yang, Yang, Zaijun Wu, Xiangjun Quan, Junjie Xiong, Zijing Wan, and Zetao Wei. 2025. "A Unified Control Strategy Integrating VSG and LVRT for Current-Source PMSGs" Processes 13, no. 11: 3432. https://doi.org/10.3390/pr13113432

APA Style

Yang, Y., Wu, Z., Quan, X., Xiong, J., Wan, Z., & Wei, Z. (2025). A Unified Control Strategy Integrating VSG and LVRT for Current-Source PMSGs. Processes, 13(11), 3432. https://doi.org/10.3390/pr13113432

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