摘要
针对具有弱磁调速的直流电机速度控制系统被控对象中存在较大的参数时变性及具有负载 扰动不确定性的问题,首先构造了一个适当的增广被控对象,将其转化为一H∞标准设计问题,并利 用H∞鲁棒控制理论,设计了速度控制系统的鲁棒状态反馈控制器,进而利用二自由度鲁棒跟踪设计 方法设计了速度鲁棒跟踪控制器。仿真研究结果表明,本文所设计的速度鲁棒跟踪控制系统,不仅对 于电机的参数时变不确定性有较好的控制效果,而且可以有效地抑制电机负载扰动的影响。
A speed control question of a DC motor with field weakening character which have the time-varying parameters and the load disturbance uncertainty is considered. First the question is transformed into a standard H∞ designed question by constructing an appropriately generalized object controlled, then the state feedback robust controller is designed by using H∞ robust control theory, and the speed tracking robust controller is obtained by utilizing the two-degree robust tracking method. The results of simulation show that the controller designed is not only stable to the parameters uncertainness, but also has a good disturbance attenuation performance for the load variation of the DC motor.
出处
《电机与控制学报》
EI
CSCD
北大核心
2005年第1期29-32,50,共5页
Electric Machines and Control
基金
国家自然基金资助项目(60074022)宝钢"2030五机架冷连轧杌建模仿真及控制优化"资助项目
关键词
直流电机
速度控制系统
鲁棒控制器
设计
弱磁调速
直流调速系统
DC motor
speed adjusting with field weakening
parameters uncertainness
speed robust tracking control
