一种任意相对阶数从模型取状态MRAC系统  

A Kind of Design for Arbitrary Relative Order MRAC System Taking the State from the Model

作　　者：陈飞[1] 王振臣[1] 柳晓菁[1] 吴士昌[1] 

机构地区：[1]燕山大学电气工程学院,河北秦皇岛066004

出　　处：《控制工程》2003年第2期142-144,共3页Control Engineering of China

摘　　要：在被控对象是稳定的且参数的变化范围已知的假设条件下,给出一种基于Popov超稳定理论,简单的任意相对阶数从模型取状态MRAC系统设计方法。从模型取状态,不仅解决了对象状态不能直接观测的问题,而且增加了抗噪声干扰的能力。控制器加入线性前馈环节,提高了系统的稳定性。数字仿真结果表明,被控对象能很好地跟随参考模型的输出。由于构造的控制器结构比较简单,因此更容易实现,便于工程应用。With the hypothesis that the plant is stable and the parameter's variation range is known, a kind of design for arbitary relative order MRAC system taking the state from the model is given based on the Popov hyperstable theory. The method of taking the state from the model not only solved the problem that the plant's state can't be directly observed, but also improved the ability of noise canceling. A linear feedforward loop is put into the controller which can improve the stability of the system. The simulation graphs have shown that the plant can follow the output of the reference model quit well. The structure of the controller is much simpler, so it is suitable for usage of engineering.

关 键 词：任意相对阶数 MRAC系统 模型参考自适应控制 Popov超稳定理论 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置] O231[自动化与计算机技术—控制科学与工程]