Virtual synchronous generator (VSG) enhances the stability of distributed power sources during grid connection by simulating the operating principle of a synchronous generator and introducing the virtual inertia and damping coefficient. However the traditional VSG control strategy struggles to address abrupt changes in grid voltage phase and amplitude when the voltage drops in the grid. Therefore,a low voltage ride-through control method for VSG based on phase and amplitude compensation is proposed. Firstly,the different effects of voltage drops and recovery on the power grid are analyzed. Secondly,during voltage drops,the purposes of overcurrent suppression,rapid stabilization of output power,and reactive power compensation are achieved by controlling the phase and amplitude difference between VSG output voltage and grid voltage within the allowable range. Then,during voltage recovery,rapid compensation eliminates the phase difference and amplitude difference between VSG output voltage and grid voltage to suppress overcurrent and other problems caused by grid voltage jumps. Finally,the effectiveness of the proposed control strategy is verified by MATLAB/Simulink simulation. The simulation results show that it can effectively suppress the overcurrent and realize reactive power compensation.