Abstract
This paper is concerned with a method of the adjustment of the controller parameters when the system parameters are varied by disturbances, assuming the control system has been optimally designed at the start.
It is shown that, based on the concept of sensitivity analysis, the optimum variations of the controller parameters can be obtained from the formula of linear combination as to the variations of the system parameters which are estimated by applying the concept of inverse sensitivity and the improved mathematical model of controlled system.
It is also clarified that this adaptive control system based on the method desrrived above shows a good response and does not require a large on-line computer, since the linear combination coefficients can be determined beforehand independently of the variations of system parameters.
Experimental results by computer simulation are included to demonstrate the practicality of the proposed adaptive control system.
