基于H_∞和Youla参数化的结构误差范围分析  

Structural perturbations boundary analysis based on H_∞and Youla parametrization

作　　者：肖朝霞[1] 王先来[1] 

机构地区：[1]天津大学电气与自动化工程学院,天津300072

出　　处：《电机与控制学报》2005年第6期600-602,606,共4页Electric Machines and Control

摘　　要：为了探讨被控对象的结构误差范围,简化调节PID参数过程,利用H∞和Youla参数化理论,给出了当控制器使标称模型稳定而标称模型存在结构误差的情况下,控制器仍然可以使摄动对象也稳定时的结构误差范围的计算方法,计算了被控对象分别是单变量系统和多变量系统时,结构误差的范围。仿真结果验证了该计算方法的可行性。这种方法给工程人员提供了一个设计PID控制器的定量指标,简化了调节PID参数的过程。In order to explore the structural perturbations boundary of object and simplify the process of adjusting the PID parameters, the structured perturbations boundary is determined when a controller can make a nominal object stable and also make the perturbations object with Structural perturbations stable via the theory of H∞ and Youla parametrization. Moreover, the structural perturbations boundary is calculated when the object is single - variable or multi - variable. The simulation has verified the flexibility of this method. This method can give the engineers a quantitative index when designing the PID controller, and this simplifies the process of adjusting the PID parameters.

关 键 词：结构误差 YOULA参数化 PID H∞ 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置]