Abstract:In view of the current control method on static reactive power generator SVG reactive compensation defects, put forward a kind of advanced methods of voltage oriented control (VOC). This paper firstly analyzes the principle of work of static var generator SVG voltage type main electric circuit, and then introduces the structure of the control system, and this essay discusses the voltage directional control topology and the process of reactive current and active current decoupling, at last a system simulation is carried out in the MATLAB/Simulink environment. Through the experiment waveform, it is known that the voltage oriented control method was applied to SVG, the system can get good dynamic and static characteristics, the effect of reactive power compensation is very good.