Journal of Applied Sciences

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Multi-Model Switching Control for Nonlinear Systems Based on Local T-S Models

QIAN Cheng-shan1,2, WU Qing-xian1, JIANG Chang-sheng1, WANG Yan-qing3   

  1. 1. College of Automation, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
    2. Taishan College, Taian 271021, China
    3. Institute of Sciences, PLA University of Science and Technology, Nanjing 211101, China
  • Received:2006-11-20 Revised:2007-03-05 Online:2007-07-30 Published:2007-07-30

Abstract: We Propose a multi-model switching control for nonlinear systems based on local T-S (Takagi-Sugeno) models, which divides the input space into multiple regions with T-S models and controls in every region. This method improves precision as the fuzzy domain decreases under a constant fuzzy rule. The approach and control of the entire nonlinear system is established by the multiple-model switching control. Effectiveness of the proposed method is demonstrated with simulation results.

Key words: multiple models, local T-S model, nonlinear system, switching