提出一种dq坐标系下静止无功发生器的自抗扰解耦控制方法。首先针对静止无功发生器(static var generator,SVG)非线性、强耦合的特点,建立并设计基于自抗扰技术的多变量解耦控制系统。其次,为克服一般控制算法难以解决的高频振荡和滤波效果差的问题,设计最速控制综合函数作为跟踪微分器。另外设计自抗扰线性和非线性两种控制器,并与PI控制算法进行比较,通过Matlab仿真和样机实验,验证了所设计的基于非线性自抗扰技术的多变量解耦控制算法可实现SVG输出电流在dq轴下的解耦,使系统具有较快的动态响应和较强的鲁棒性及抗干扰性,尤其具有单参数调节和无超调的优良性能。
【英文摘要】
This paper proposed an active disturbance rejection decoupling controller based on the dq coordination system applied on static var generator(SVG). Firstly, for the non-linearity and strong-coupling of SVG, a multi-variables decoupling control system based on active disturbance rejection has been designed and built. Secondly, in order to deal with the high frequency oscillation and poor filtering characteristic which the most ordinary controlling strategy can hardly overcome, this paper introduced a trackin...