Intelligent digital redesign of fuzzy controller for non-linear systems with packet losses

Geun Bum Koo; Jin Bae Park; Young Hoon Joo

Intelligent digital redesign of fuzzy controller for non-linear systems with packet losses

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Author(s): Geun Bum Koo ¹ ; Jin Bae Park ¹ ; Young Hoon Joo ²
- Affiliations: 1: Department of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, Korea ;
  2: Department of Control and Robotics Engineering, Kunsan National University, Kunsan, Chonbuk 573-701, Korea
Source: Volume 10, Issue 3, 05 February 2016, p. 292 – 299
DOI: 10.1049/iet-cta.2014.1287 , Print ISSN 1751-8644, Online ISSN 1751-8652

Received 01/12/2014, Accepted 13/10/2015, Revised 15/08/2015, Published 05/02/2016

In this study, a novel intelligent digital redesign (IDR) technique is proposed for the sampled-data fuzzy controller of the non-linear system with packet losses. For the IDR development, the non-linear system is represented in the Takagi–Sugeno fuzzy model and the packet loss is assumed to be an independent, identically distributed Bernoulli random process. After introducing the traditional IDR technique, the closed-loop system with state-matching error and the state-matching error cost function are achieved for the development of the novel IDR technique. In the discrete-time Lyapunov sense, the exponential mean-square stability is guaranteed while minimising the state-matching error, and its sufficient condition is derived into linear matrix inequalities. Two examples are provided to verify the effectiveness of the proposed technique by comparison.

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