Abstract: In high-voltage islanded microgrid, circulating current caused by output impedance mismatch in parallel inverters affects the system transmission efficiency and stability. In this paper, adaptive virtual impedance is synthesized by external inductance and virtual inductance based on an equivalent feeder strategy for dynamically adjusting the output impedance matching characteristics. In order to alleviate the shortcomings of the traditional PI control with slow response speed, this paper proposes a two-step accelerated prediction method based on hybrid multi-vector model predictive control (MPC), which reduces the real-time computation while improving the control accuracy. Finally, the circulating current and harmonic suppression effects of traditional voltage-current double-loop control and different- vector MPC control are compared and analyzed under two typical operating conditions, namely, load suddenly change and load fluctuations. The results show that the hybrid multi-vector MPC with two-step accelerated predictive control based on the equivalent feeder strategy retains the circulating current suppression effect while improving the harmonic suppression capability and accelerating the response speed.