Focusing on the defects of traditional PI controller of three-phase VSR—fixed parameter, this dissertation, based on the traditional double-closed loop strategy, proposes to employ fuzzy PI controller for outer voltage loop in order to improve dynamic and static performance, which can improve the robustness and optimize the performance of the system. A SVPWM based on non-orthogonal coordinates is applied to inverter, and the algorithm steps are more simplified compared with the conventional SVPWM. The fuzzy PI based on non-orthogonal coordinates vector system vector system is superior the conventional PI vector control system in dynamic stability, speed tracking and anti-interference by and MATLAB simulation analyzing the running data of three phase VSR, which provides the basis for improving the design of this kind of hardware device.