基于特征建模的模型恢复抗饱和控制  

Model Recovery Anti-Windup Control Based on Characteristic Modeling

作　　者：郭瑞科[1] 胡军[1] Guo Ruike;Hu Jun(Beijing Institute of Control Engineering,Beijing 100190,China)

机构地区：[1]北京控制工程研究所,北京100190

出　　处：《航天控制》2021年第3期20-26,共7页Aerospace Control

基　　金：国家重点研发计划(2018YFA0703800);空间智能控制技术重点实验室基金(ZDSYS-2018-04);国家自然科学基金青年项目(62003034)。

摘　　要：针对基于特征模型的黄金分割控制器所控制的对象模型执行器存在饱和约束的情况,提出将模型恢复抗饱和(Model Recovery Anti-Windup,MRAW)策略和基于特征建模的黄金分割控制相结合的抗饱和控制方法。首先根据特征建模理论建立被控对象特征模型,设计可使闭环系统稳定且满足控制要求的自适应黄金分割控制器;然后考虑执行器存在饱和约束,用二阶差分形式的特征模型取代原被控对象来设计MRAW抗饱和补偿器,这种低阶特征模型与原被控对象输出是等价的,可以简化一类高阶被控对象或者非线性对象的MRAW抗饱和补偿器求解。数值仿真验证了所设计抗饱和补偿器可以很好地恢复饱和时的跟踪性能。An anti-windup control method is proposed by combining the model recovery anti-windup( MRAW) strategy with the characteristic modeling based golden-section control in view of input saturation.Firstly,a characteristic model of the plant is established according to the characteristic modeling theory,and an adaptive golden-section controller is designed to obtain the stability of closed-loop system and meet the control requirements. Then,involving consideration of the input saturation of the actuator,the MRAW compensator is designed by replacing the plant model with the characteristic model of the second-order difference form. This low-order characteristic model is equivalent to the output of the plant,which can simplify the design of the MRAW compensator for a class of high-order plant or nonlinear plant. Numerical simulation result verifies the effectiveness of the proposed method.

关 键 词：特征建模 模型恢复 抗饱和 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]