Abstract: In addressing the challenges posed by the high proportion of power electronic devices, this study focuses on the parallel operation issues of virtual synchronous generators (VSG) in isolated microgrid systems. The parallel operation of VSG involves intricate coordination of load sharing, placing more stringent demands on the system's stability and consequently complicating the control strategy. To tackle this issue, the paper innovatively introduces the active disturbance rejection control (ADRC) technology, integrating it with algorithms based on P-f and Q-V droop control to achieve more precise voltage deviation control. This integrated control scheme endows VSG with greater flexibility, enabling them to adapt to variations in load sharing while maintaining the dynamic stability of the system. Simulation results validate that the new control strategy enables VSG to operate seamlessly in isolated systems, facilitating parallel operation during load changes without adversely affecting the dynamic stability of the system. This innovative approach provides an intelligent and adaptive solution to the parallel operation challenges of VSG in isolated microgrid systems, offering a comprehensive safeguard for the stability and reliability of the system.