Patent ID: 6684115
Filing Date: 2004-01-27
Classification: G05B

Abstract:
A model-free adaptive quality variable control system, comprising:a) a model-free adaptive controller having an error input and a control output; b) a controlled process having a control input and a process output, and having a delay time process and a feedforward process associated therewith, the input of said feedforward process being a disturbance, and the output of said delay time process being the process variable; c) a feedforward controller having said disturbance as an input and having a feedforward controller output; d) a delay predictor having as its inputs said control output and said process variable, and having as its output a dynamic feedback signal; and e) a setpoint signal; f) said error signal being the difference value of said setpoint signal and said dynamic feedback signal; g) said control input of said controlled process being the sum of said control output and said feedforward controller output; and h) the input of said delay time process being the sum of said process output and the output of said feedforward process.