Controlling a linear first order time varying parameter system using a linear constant parameters control law

We have shown previously (1991) that it is possible to model and to control variable structure systems (VSS) which change their internal structure between two different models (two points variable systems), and systems whose parameters are bonded time functions (distributed variations). We gave geometric conditions to control VSS with PD feedback. And we have also shown (1992) how to implement the control strategy for the case of two inputs variable systems. We show in this paper the implementation for the case of distributed variations