【作者】 高海燕； 蔡远利； 陈智勇；

【Author】 Gao Hai-yan;Cai Yuan-li;Chen Zhi-yong;School of Electronic and Information Engineering,Xi’an Jiaotong University;

【机构】 西安交通大学电子与信息工程学院；

【摘要】 本文研究了仿射非线性系统在于扰条件下跟踪常值参考信号的预测控制方法。该方法采用非线性干扰观测器估计干扰信号,把扰动对系统的影响转化到平移设定值上,进而对干扰信号进行补偿,无需设计扰动补偿增益,简化了设计过程。理论上证明了该方法可以保证无静差地跟踪给定的参考信号,在一般导弹的纵向模型上进行了大量仿真计算。仿真结果表明,相比于传统的无静差跟踪预测控制方法,该方法具有更好的跟踪性能。更多还原

【Abstract】 This paper investigates the model predictive control method of the affine nonlinear system for tracking constant reference signal under external disturbances.In the presented method,we use the nonlinear disturbance observer to estimate the disturbances,and convert the influence of disturbance on the system to the set-point to compensate the disturbance without designing a disturbance compensation gain vector.The design process is greatly simplified.It is theoretically proved that the outputs can track the reference signals without any errors,and some simulation verification was conducted in the longitudinal dynamics of a general missile system.Simulation results show that the proposed method has better tracking performance compared with the conventional offset-free model predictive control.更多还原