Abstract
In this paper, we propose a new design method of the low-sensitive flight control system that has constant gain controller and constant closed loop transfer function when aircraft dynamics changes in wide range.
This method is based on Tagawa's new design method using utmost compensator that has the following advantage: the designer can specify the transfer functions of reference to controlled variable and disturbance to controlled variable, independently.
The design procedure consists of the following steps:
(1) Define the degree of freedom of gains of the utmost compensator when the transfer function of reference to controlled variable is fixed.
(2) Assume the class of the change of controlled object dynamics and verify the validity of the assumption.
(3) Transform the change of controlled object dynamics to a equivalent disturbance, and minimize the transfer function of the disturbance to controlled variable.
