POWER INTERACTION OSCILLATION SUPPRESSION STRATEGY FOR GRID-CONNECTED SYSTEM WITH VIRTUAL SYNCHRONOUS GENERATORS

Zhuo Qingdong; Xie Chen; Yang Ling; Zhu Difan; Liu Wendi; Xu Zhaoyang

doi:10.19912/j.0254-0096.tynxb.2024-1909

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (3) : 89-98. DOI: 10.19912/j.0254-0096.tynxb.2024-1909

POWER INTERACTION OSCILLATION SUPPRESSION STRATEGY FOR GRID-CONNECTED SYSTEM WITH VIRTUAL SYNCHRONOUS GENERATORS

Zhuo Qingdong, Xie Chen, Yang Ling, Zhu Difan, Liu Wendi, Xu Zhaoyang

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Abstract

This paper proposes a power interaction oscillation suppression strategy for virtual synchronous generator grid-connected system based on phase compensation, by analyzing the relationship between active output and phase, and establishing a feed-forward channel to compensate the output phase in the original VSG active power control, which is used for suppressing power interaction oscillations in multi-VSG systems during the frequency fluctuation grid-side frequency fluctuations, and improving the dynamic frequency response of the system. In addition, the method is not constrained by the matching conditions of multiple VSG parameters, nor does it affect the steady-state characteristics of the system, and the design and stability analysis of key parameters are given. Finally, the feasibility of the proposed strategy is verified by results derived from hardware-in-the-loop experiments.

Key words

virtual synchronous generator / transient stability / Bode diagrams / parallel system / phase compensation / small signal model

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Zhuo Qingdong, Xie Chen, Yang Ling, Zhu Difan, Liu Wendi, Xu Zhaoyang. POWER INTERACTION OSCILLATION SUPPRESSION STRATEGY FOR GRID-CONNECTED SYSTEM WITH VIRTUAL SYNCHRONOUS GENERATORS[J]. Acta Energiae Solaris Sinica. 2026, 47(3): 89-98 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1909

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