SERVO CONTROL SYSTEM FOR RUDDER OF AIR PLANE

摘要

PROBLEM TO BE SOLVED: To provide a controller, which can always obtain the stabilized control characteristic even in the case where the natural frequency of an object to be controlled is fluctuated in a certain range and of which installation is facilitated. ;SOLUTION: In this system, operation of a rudder of an air plane to be operated by an actuator is controlled by a controller 10 provided with a compensating unit 14 for outputting the operated variable so that a target value and a controlled variable of the rudder coincide with each other. The actuator and the rudder are regulated as an object to be controlled, which generate the fluctuation of' the natural frequency, and this system is also provided with a means a for treating the fluctuation of the object to be controlled in a predetermined range, which includes the natural frequency thereof, as the fluctuation of parameter of the equivalent mass and the rigidity of the rudder, and provided with a linear compensating unit 14 designed by the robust control method so as to obtain the robust stability even in the case where the object to be controlled is fluctuated within the predetermined range.;COPYRIGHT: (C)1997,JPO