Estimation of robust invariant set for switched linear systems using recursive state updating and robust invariant ellipsoid

Abstract

This paper provides an analysis method of a robust invariant set for discrete-time linear switched systems with peak-bounded disturbances. In the case of a switched linear system, it is challenging to analyse the robust invariant set accurately than that of the linear time-invariant system. We propose a novel method to estimate a robust invariant set using a combination of a recursive state updating and an invariant ellipsoid for a common Lyapunov function. The effectiveness of the estimation accuracy by the proposed method is illustrated using numerical examples.

Keywords

• invariant set
• robust invariant set
• robust control
• linear control system
• switched system
• invariant ellipsoid
• peak bounded disturbance
• less conservative