Systems Engineering and Electronics ›› 2020, Vol. 42 ›› Issue (5): 1152-1159.doi: 10.3969/j.issn.1001-506X.2020.05.24

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Asynchronous H control for a class of non-homogeneous Markov jump LPV systems

Weiyang SUN(), Yu LIU()   

  1. Department of Control Science and Engineering, School of Astronautics, Harbin Institute of Technology, Harbin 150001, China
  • Received:2019-04-01 Online:2020-04-30 Published:2020-04-30
  • Supported by:
    国家自然科学基金青年科学基金(61803122)

Abstract:

This paper investigates the problem of asynchronous H control of a class of discrete-time non-homogeneous Markov jump linear parameter-varying (LPV) systems with external disturbances. Considering that actual system modes of non-homogeneous Markov system are difficult to acquire directly, a non-homogeneous hidden Markov model is adopted to describe the asynchronous phenomenon between controller modes and system modes. The time-varying properties of non-homogeneous Markov jump systems and non-homogeneous hidden Markov chains are described by piecewise homogeneous transition probability matrices and piecewise homogeneous conditional probability matrices, respectively, and they are governed by the same higher-level homogeneous Markov chain. Based on the above-mentioned issues, this paper accomplishes the stability analysis, H performance analysis and asynchronous H controller design of the closed-loop system with external disturbance input and asynchronous phenomenon to guarantee the system with the achieved H performance index. Finally, a practical example of a direct current motor is provided to illustrate the validity and superiority of the developed theoretical results allowing for non-homogeneous information.

Key words: non-homogeneous Markov jump system (MJS), non-homogeneous hidden Markov chain, time-varying transition probability, piecewise homogeneous transition probability, asynchronous H control

CLC Number: 

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