Patent ID: 8831755
Filing Date: 2014-09-09
Classification: G05B,Y02P

Abstract:
1. A system for controlling a linear time invariant, minimum phase, and strictly proper plant described by a plant transfer function P(s) using an input control signal u, the plant outputting a plant output signal y, the system comprising: a subtractor for calculating an error signal e comprising the difference between said system input signal u and said plant output signal y; a feedback loop for feeding the plant output signal y to said subtractor; a set of sensitivity requirements smaller than any positive number ε on a limited frequency range ω≦ω a stabilizing controller/compensator described by a transfer function C(s) for receiving said error signal e and providing a compensated control signal to said plant, said controller/compensator comprising a high gain filter having a fast time response and satisfying said set of sensitivity requirements on said limited frequency range described by a transfer function of a high gain filter J over said limited frequency range and over said whole frequency range.