Control of nonlinear distributed parameter systems based on global approximation

We extend an iterative approximation method to nonlinear,distributed parameter systems given by partial differential and functional equations. the nonlinear system is approached by a sequence of linear time-varying systems,which globally converges in the limit to the original nonlinear systems considered. this allows many linear control techniques to be applied to nonlinear systems. here we design a sliding mode controller for a nonlinear wave equation to demonstrate the effectiveness of this method. copyright © 2014 c. du and g. xing.