基于时延补偿观测器的扰动抑制  

Disturbance rejection of time-delay observer

作　　者：宋运忠[1] 赵旭[1] 甄培庆 

机构地区：[1]河南理工大学电气工程与自动化学院,河南焦作454000 [2]焦作供电公司,河南焦作454000

出　　处：《河南理工大学学报（自然科学版）》2012年第4期442-446,共5页Journal of Henan Polytechnic University（Natural Science）

基　　金：国家自然科学基金资助项目(60850004);河南省教育厅科技创新人才支持计划项目(2009HASTIT021);河南理工大学硕士学位论文创新基金资助项目

摘　　要：为克服持续高频扰动对具有时延惯性环节被控对象的影响,提出了带时延补偿的扰动观测器.结合被控对象逆、Q滤波器、超前补偿环节和时延逼近器,运用频域分析技术实现了对被控对象的良好控制.分析表明,所提出的时延补偿观测器能够有效地克服时延对被控对象的不良影响,对相关持续高频扰动也具有很好的抑制作用.通过数值仿真,进一步验证了所提方案的正确性.In order to overcome the negative effect induced by the persistent and high frequency disturbances to the controlled plant, which is the first order object with time delay, a disturbance observer with time delay was put forward, and in the inverse auspices of the controlled plant, Q filter, lead compensator together with time delay approximator, the controlled plant can be well regulated, which came naturally under frequency domain analysis ; and on account of that, the negative effect attributed by the time delay and the persistent disturbance can be cut sharply; finally, a numerical example was further employed to verify the validity of the suggested scheme.

关 键 词：Q滤波器 时延逼近器 时延扰动观测器 

分 类 号：TM921.541[电气工程—电力电子与电力传动]