Synthesis of System Responses: A Nonlinear Multivariable Control Design Approach

The idea of specifying desired system responses has resulted in a new approach for design of multivariable control systems. A unique feedback controller structure, using coordinated feedforward and feedback dynamics, is presented and discussed. The method offers designer insight into plant dynamics and offers influence and choices over system responses. Responses are specified and control dynamics are obtained at local conditions along desired steady state control paths. Linear designs are linked to form nonlinear control law dynamics. The method is illustrated by simulations.