Research on reference model design for linear multivariate model following control systems

In this paper, some bad influence of unsuitably designed reference models on linear multivariate model following control systems is analysed. In order to eliminate the influence, four reference model design criteria, which emphasis that the reference models should possess not only ideally placed characteristic structures but also similar external properties to the plants, are proposed. Based on the criteria, a standard and general design method is studied in detail. Finally, it is proved that the reference models out of the method not only satisfy the perfect model following conditions, but also is controllable.