A virtual synchronous generator-based grid-forming hybrid transformer for grid support

Lai, Jinmu, Khan, Musa ORCID: https://orcid.org/0000-0002-9618-155X, Yin, Xin, Liang, Jun ORCID: https://orcid.org/0000-0001-7511-449X and Liu, Yang 2025. A virtual synchronous generator-based grid-forming hybrid transformer for grid support. IET Conference Proceedings 2025 (6) , 344. 10.1049/icp.2025.1229 Item availability restricted.

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Abstract

The integration of distributed generators (DG) and load fluctuations has led to increased voltage fluctuations in distribution systems. This study introduces a grid-forming hybrid transformer (GFM-HT) solution for voltage regulation and power support. The efficacy of this solution is demonstrated using the IEEE 33-bus system in MATLAB/Simulink. Results show that the GFM-HT effectively regulates node voltage within the range of 0.9 to 1.1 per unit (p.u.). Through a virtual synchronous generator (VSG) control strategy, the GFM-HT accurately adjusts power based on the power command value and can operate in island mode, thereby enhancing voltage and power support capabilities.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Schools > Engineering
Publisher:	Institution of Engineering and Technology (IET)
Date of First Compliant Deposit:	1 July 2025
Date of Acceptance:	12 December 2024
Last Modified:	02 Sep 2025 09:15
URI:	https://orca.cardiff.ac.uk/id/eprint/179402

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