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Improved Strategy of Grid-Forming Virtual Synchronous Generator Based on Transient Damping

Lei Zhang1, Rongliang Shi1,2,*, Junhui Li2, Yannan Yu1, Yu Zhang1

1 Key Laboratory of Advanced Manufacturing and Automation Technology, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin, 541006, China
2 Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin, 132011, China

* Corresponding Author: Rongliang Shi. Email: email

(This article belongs to the Special Issue: Emerging Technologies for Future Smart Grids)

Energy Engineering 2024, 121(11), 3181-3197. https://doi.org/10.32604/ee.2024.054485

Abstract

The grid-forming virtual synchronous generator (GFVSG) not only employs a first-order low-pass filter for virtual inertia control but also introduces grid-connected active power (GCAP) dynamic oscillation issues, akin to those observed in traditional synchronous generators. In response to this, an improved strategy for lead-lag filter based GFVSG (LLF-GFVSG) is presented in this article. Firstly, the grid-connected circuit structure and control principle of typical GFVSG are described, and a closed-loop small-signal model for GCAP in GFVSG is established. The causes of GCAP dynamic oscillation of GFVSG under the disturbances of active power command as well as grid frequency are analyzed. On this basis, the LLF-GFVSG improvement strategy and its parameter design method are given. Finally, the efficiency of the proposed control strategy in damping GCAP dynamic oscillations under various disturbances is verified using MATLAB simulations and experimental comparison results.

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APA Style
Zhang, L., Shi, R., Li, J., Yu, Y., Zhang, Y. (2024). Improved strategy of grid-forming virtual synchronous generator based on transient damping. Energy Engineering, 121(11), 3181-3197. https://doi.org/10.32604/ee.2024.054485
Vancouver Style
Zhang L, Shi R, Li J, Yu Y, Zhang Y. Improved strategy of grid-forming virtual synchronous generator based on transient damping. Energ Eng. 2024;121(11):3181-3197 https://doi.org/10.32604/ee.2024.054485
IEEE Style
L. Zhang, R. Shi, J. Li, Y. Yu, and Y. Zhang, “Improved Strategy of Grid-Forming Virtual Synchronous Generator Based on Transient Damping,” Energ. Eng., vol. 121, no. 11, pp. 3181-3197, 2024. https://doi.org/10.32604/ee.2024.054485



cc Copyright © 2024 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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