基于双闭环控制的SVG系统建模与仿真

静止无功补偿器(SVG)具有动态性、灵活性等特点,从而成为无功补偿的首选方案和发展方向.从SVG基本结构的拓扑模型出发,建立SVG数学模型,提出SVG双闭环控制策略——电流内环控制设计和电压外环控制设计,并运用Matlab/Simulink仿真工具进行电路建模和仿真验证,证实其可行性和正确性.

SVG system modeling and simulation based on double closed-loop control strategy

Static var generator （SVG） has the properties of dynamics and adaptive, which makes it become the first choice of scheme and development direction for the reactive power compensa-tion. In this paper, the basic structure of SVG topological model is made, the mathematical model of SVG is established. And then based on the mathematical model, the double closed-loop control strategy for SVG is proposed, which is inner-loop control design for current and outer loop con-trol design for voltage. The feasibility and correctness are proved by circuit modeling and simula-tion verification using the Matlab/Simulink simulation tool.