考虑非均匀通信延迟的多VSG功率振荡抑制OA北大核心CSTPCD

With the rapid development of renewable energy sources,virtual synchronous generators (VSG) have garnered significant attention as a key technology for enhancing the stability of power systems. However,severe power-oscillation issues are inherent to multi-VSG systems. In this study,a control strategy was investigated for a multi-VSG parallel operation. A distributed adaptive parameter method is proposed to suppress power oscillations. First,by integrating the virtual impedance,frequency rate of change,and adaptive inertia,this method effectively reduces the initial power overshoot and improves the stability and robustness of the system. Second,in the case of non-uniform communication delays in transmission line communication,an operation strategy is introduced,wherein centralized and distributed controls serve as mutual backup protection,further enhancing system reliability. Finally,the simulation results demonstrate the robustness and high delay tolerance of the method considering non-uniform communication delays,promoting the practical application of multi-VSG systems and enhancing the frequency response performance of generator clusters.