基于Laguerre核内置广义线性前馈网络的系统建模与预测控制

System modeling and predictive control based on Laguerre kernel inset GLFF network

针对飞行器姿态仿真转台电液位置伺服系统非线性因素导致其数学模型不确定性的特点,以及系统动态性能要求较高的情况,采用Laguerre核内置广义线性前馈网络的结构,以短数据集—低阶算法精确逼近系统,为预测控制提供适用的模型,同时对模型和控制算法进行了仿真实验.结果表明该方法较好地解决了仿真转台电液位置伺服系统的控制问题.

This paper focusing on the characteristic that electrohydraulic position servo system of flight attitude simulator existing nonlinear factor results in model uncertainty, and case which better dynamic performance of system is needed. The form of Laguerre kernel inset GLFF network and precision arithmetic of short data set ＆ low order is used for approximating system, which offers a appropriate model for predictive control. At the same time, simulation is made. The result of experiment shows that the means can better solve the control case of electrohydraulic position servo system of flight simulator.