Type-1 deadbeat servo systems by using virtual command signal

Abstract This paper proposes a new design method of the type-1 deadbeat servo system, in which the output settles to a command signal in a finite number of control steps, for linear digital systems. By using a virtual command signal in the period of the transient response, new degree of freedom is induced. Even when the integrator is added to the controlled system, the minimum settling time does not increase. Furthermore, two theorems are induced to obtain the general form of the type-1 deadbeat servo system.