Contorl System Design for an Ideal Transient Control Performance

Proposal of Simulator-based Foresight Control

Abstract

A new control concept to achieve an ideal transient control performance is described. It is also possible to examine control performances on the frequency domain. Generally speaking, better control performances will be achieved by using more exact information on the plant as a basis. A simulator is to be built which has both correct initial values of state variables and parameters on domainant parts of the plant. The internal states of the simulator are used to represent the internal states of the plant, and control input is synthesized with the internal states of the simulator and the plant output.
Taking advantage of information on the simulator, we can obtain an ideal control performance at a dominant frequency area, in spite of the exsistence of unmodeled dynamics at a highter frequency domain . This control system is called SFC (Simulator-based Foresight Control), and is also available for nonlinear and/or time-varying plants.