一类非线性系统的自适应通用模型控制策略

Adaptive Common Model Control Scheme for a Kind of Nonlinear Systems

通用模型控制(CMC)算法的参考轨迹是一条标准的二阶曲线,该控制器的参数具有明显的物理意义,控制器参数整定方便.将通用模型控制算法与非线性观测器结合,在线估计控制器的参数,从而构成自适应控制系统.该自适应控制策略的参数也具有明显的物理意义,控制器和非线性观测器参数整定方便.在压力槽的控制中表明了该控制策略的良好性能.

The reference trajectory of common model control (CMC) scheme is a classic second order curve. The parameters of CMC are of very explicit physic meaning and it is very easy to tune for the controller. Combining the CMC algorithm with the nonlinear observer to estimate the parameters of the controller on line, an adaptive nonlinear control scheme is developed. The parameters of the adaptive control scheme are of very explicit physic meaning and it is very easy to tune for the controller and the nonlinear observer. The simulation results for a nonlinear pressure tank show that the adaptive common model controller is very effective for nonlinear systems.