Phase Angle Feedforward Control for Oscillation Suppression of Multi‐VSGs Parallel Microgrid

In a microgrid system with multiple virtual synchronous generators (VSGs), the introduction of inertia makes the power oscillations of each VSG under an active power disturbance more obvious. Therefore, this paper establishes the active power frequency response model of the multi‐VSG parallel microgrid system. On this basis, combined with the system topology, phase angle feedforward control is proposed, and the difference between the initial power and the steady power caused by the power oscillations is compensated by the optimal compensation coefficient, which can improve the system power response speed, restrain the power oscillation between units, and retain the inertia response adjustment ability. Finally, simulation experiments are carried out on the Matlab/Simulink platform to verify the correctness of the proposed active power frequency response model and the effectiveness of the proposed method for suppressing power oscillation.