【摘要】 针对非线性系统自适应逆控制的不完善,本文引入逆系统方法将非线性系统转化为伪线性系统,然后使用最小二乘支持向量机(LS-SVM)建立了逆系统模型,最后利用成熟的线性系统自适应逆控制理论实现非线性系统的自适应逆控制。引入逆系统方法后实现了两大功能:其一,消除了非线性系统的干扰,而且不需要设计逆对象模型:其二,实现了多变量(n维变量)之间的解耦,而且节省了3n(n-1)个线性滤波器的设计。本文针对一个典型多变量二阶系统实现了非线性系统的自适应逆控制,仿真试验表明该方法不但能够很好地消除非线性系统的干扰,而且还实现多变量的解耦控制。更多还原

【Abstract】 To come over the weakness of nonlinear adaptive inverse control,this paper introduces a solution of inverse system to convert nonlinear system into false linear system,and then utilizing linear system theory to solve the adaptive control problems for nonlinear system.The merits of employing inverse system solution are that it is able not only eliminate nonlinear system disturbance using minimum linear filters and without inverse model of controlled object,but also realize the decoupling among the multi-variables.The method is applied to control a typical second order nonlinear system with multi -variables.The simulation results prove the effective of the method put forward in this paper.更多还原