Abstract
A control method in which a controlled variable follows a periodic reference input accurately has been proposed. It is applied to the power supply to a proton synchrotron.
However, the method developed so far has been applicable only to single variable systems. In this paper, we discuss its extension to a multivariable case. That is, the controlled variables of a multivariable system are designed to follow a set of periodic references which have the same period but different patterns each other.
In this extension, stabilization of the multivariable system becomes important. In this paper, strategy of stabilization is newly proposed in the frequency domain just like a single variable case.
The obtained design method is reasonable in the sense that it contains the one for a single variable system as a special case. It has the following merits:
(1) Only frequency response of a controlled system is used for the design process.
(2) Graphical method.
(3) It does not limit the application to decoupled multivariable systems.
