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针对电流控制方法在静止无功发生器(SVG)上应用的缺陷,提出一种新的电压定向矢量控制方法(VOC).在分析SVG的系统结构和工作原理的基础上,介绍了VOC的基本原理及其控制结构,详细论述了在VOC算法下,无功电流与有功电流解耦过程.运用MATLAB/Simulink工具进行仿真分析,同时将在实验室搭建的系统应用于矿井电网.研究结果表明:基于电压定向矢量控制的SVG具有良好的动态性和实用性,无功补偿效果良好,弥补了以SVPWM为代表的电流控制方式的不足.
Aiming at the defect of current control method applied to SVG, a new Voltage Directed Vector Control (VOC) method is proposed.Based on the analysis of the system structure and working principle of SVG, the basic VOC Principle and control structure, the paper discusses in detail the decoupling process of reactive current and active current under the VOC algorithm, uses MATLAB / Simulink tool to carry on the simulation analysis, at the same time applies the system built in laboratory to the mine power grid.The results show that: The SVG based on voltage oriented vector control has good dynamic and practicability, and the reactive power compensation effect is good, which makes up for the lack of current control methods represented by SVPWM.