Patent ID: 7599752
Filing Date: 2009-10-06
Classification: G05B

Abstract:
1. A method for tuning a fractional-order proportional-integral (PI) controller to control a process of an industrial plant, the method comprising: for a given fractional-order PI controller C(s) that is a function of proportional gain K tuning the controller parameters K controlling the process of the industrial plant P(s) by using the controller C(s), the controller C(s) comparing a measured value from the process with a reference setpoint value and calculating a new manipulated process output that brings the measured value of the process toward the reference setpoint value, wherein G(s) is the transfer function of the open loop system including the controller C(s) and the process of the industrial plant P(s) such that G(s)=C(s)P(s), and wherein w