The program for tuning of tuning device and the PID controller of PID controller and tuning methodological null process

摘要

PROBLEM TO BE SOLVED: To enable a PID controller to precisely control a process.;SOLUTION: In a tuning device 100, operation data of an actual system including controllers 10 and processes 20 are used, and the modelings of virtual controllers 51 and virtual processes 52 are performed, and then optimum control parameters to the controllers 51 are computed by using the obtained models of the processes 52. When the controllers 10 are tuned, the numerical values of the computed control parameters can be used for reference. In the tuning device 100, controllability is evaluated for each controller 51 (control loop), and there are cases that the modeling or the computation for finding the optimum control parameters is executed only for a controller 51 which is determined to be low in controllability.;COPYRIGHT: (C)2010,JPO&INPIT