J4 ›› 2010, Vol. 37 ›› Issue (5): 866-871.doi: 10.3969/j.issn.1001-2400.2010.05.016

• Original Articles • Previous Articles     Next Articles

Stochastic stability and stabilization for a class of singular hybrid systems

YANG Ying1,2;LI Jun-min1;CHEN Guo-pei2   

  1. (1. School of Science, Xidian Univ., Xi'an  710071, China;
    2. Dept. of Mathematics, Huizhou Univ., Huizhou  516007, China)
  • Received:2010-01-19 Online:2010-10-20 Published:2010-10-11
  • Contact: YANG Ying E-mail:yy1502@sina.com

Abstract:

Based on the method combining the techniques of the multiple Lyapunov function and stochastic generalized Lyapunov function, a necessary and sufficient condition is derived for discrete-time singular hybrid systems with the time-homogenous finite state Markov chain without using the restricted equivalent property of singular systems. The condition is given in terms of coupled generalized Lyapunov equations (CGLEs) such that the solution of the systems is stochastically stable. The equations can be solved by changing them into strict linear matrix inequalities (SLMIs). The result is extended to solve the stabilization problem and the design of a state-feedback controller. A numerical example shows the effectiveness of the proposed approach.

Key words: discrete-time singular hybrid systems, coupled generalized Lyapunov equations, stochastic systems, stability, stabilization