Patent ID: 6076951
Filing Date: 2000-06-20
Classification: G05B

Abstract:
A method for auto-tuning a regulator for a process, comprising the steps of:(a) applying a perturbation to the process;(b) observing input signals to the process which correspond to said perturbation and output signals of the process resulting from the applied perturbation;(c) modifying said input and output signals for rendering said signals fully integrable and hence Fourier transformable;(d) performing a FFT (Fast Fourier Transformation) of the integrable input and output signals to obtain a plurality of points on a frequency response curve of the process;(e) using an optimal multiple point fitting method for automatically selecting parameters of a regulator structure based on the points on the frequency response curve; and(f) tuning the regulator for the process in accordance with the parameters selected by the optimal multiple-point fitting method.