Article: Fuzzy adaptive coordinated control for power oscillation suppression in multi-VSG systems Journal: International Journal of Information and Communication Technology (IJICT) 2026 Vol.27 No.39 pp.60 - 81 Abstract: The integration of multiple virtual synchronous generators (VSGs) in modern power systems can induce critical low-frequency power oscillations during disturbances, threatening stability. To address the trade-off between oscillation suppression and rapid power recovery in conventional methods, this paper proposes a novel fuzzy adaptive coordinated control strategy. A small-signal model is first established to analyse the influence of key parameters on oscillation modes. Then, a fuzzy logic controller is designed to dynamically assess system damping using real-time measurements of frequency deviation, its rate of change, and power change rate. This controller adaptively coordinates the adjustment of rotational inertia, damping coefficient, and mutual damping coefficient. Crucially, mutual damping is strategically reinforced only when it aids power recovery; otherwise, it is minimised to prevent instability. Simulation results demonstrate that the proposed intelligent control strategy significantly enhances oscillation damping, shortens recovery time, and improves system resilience under various disturbances, outperforming traditional mutual damping approaches. Inderscience Publishers - linking academia, business and industry through research

Title: Fuzzy adaptive coordinated control for power oscillation suppression in multi-VSG systems

Authors: Qiang Wang; Zhenghui Li; Yaoduo Ya; Jiahao Wang

Addresses: College of Electrical and New Energy, China Three Gorges University, Yichang, Hubei, 443002, China; Hubei Provincial Engineering Research Center of Intelligent Energy Technology, Yichang, Hubei, 443002, China ' College of Electrical and New Energy, China Three Gorges University, Yichang, Hubei, 443002, China ' College of Electrical and New Energy, China Three Gorges University, Yichang, Hubei, 443002, China ' College of Electrical and New Energy, China Three Gorges University, Yichang, Hubei, 443002, China

Abstract: The integration of multiple virtual synchronous generators (VSGs) in modern power systems can induce critical low-frequency power oscillations during disturbances, threatening stability. To address the trade-off between oscillation suppression and rapid power recovery in conventional methods, this paper proposes a novel fuzzy adaptive coordinated control strategy. A small-signal model is first established to analyse the influence of key parameters on oscillation modes. Then, a fuzzy logic controller is designed to dynamically assess system damping using real-time measurements of frequency deviation, its rate of change, and power change rate. This controller adaptively coordinates the adjustment of rotational inertia, damping coefficient, and mutual damping coefficient. Crucially, mutual damping is strategically reinforced only when it aids power recovery; otherwise, it is minimised to prevent instability. Simulation results demonstrate that the proposed intelligent control strategy significantly enhances oscillation damping, shortens recovery time, and improves system resilience under various disturbances, outperforming traditional mutual damping approaches.

Keywords: virtual synchronous generator; VSG; power oscillation suppression; fuzzy adaptive control; coordinated control; small-signal stability; intelligent control systems.

DOI: 10.1504/IJICT.2026.153311

International Journal of Information and Communication Technology, 2026 Vol.27 No.39, pp.60 - 81

Received: 19 Dec 2025
Accepted: 25 Jan 2026
Published online: 01 May 2026 *

Title: Fuzzy adaptive coordinated control for power oscillation suppression in multi-VSG systems

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