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Adaptive Backstepping Fuzzy Control Based on Type-2 Fuzzy System

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  • Ll Yi-Min
  • Yue Yang
  • Li Li

Abstract

A novel indirect adaptive backstepping control approach based on type-2 fuzzy system is developed for a class of nonlinear systems. This approach adopts type-2 fuzzy system instead of type-1 fuzzy system to approximate the unknown functions. With type-reduction, the type-2 fuzzy system is replaced by the average of two type-1 fuzzy systems. Ultimately, the adaptive laws, by means of backstepping design technique, will be developed to adjust the parameters to attenuate the approximation error and external disturbance. According to stability theorem, it is proved that the proposed Type-2 Adaptive Backstepping Fuzzy Control (T2ABFC) approach can guarantee global stability of closed-loop system and ensure all the signals bounded. Compared with existing Type-1 Adaptive Backstepping Fuzzy Control (T1ABFC), as the advantages of handling numerical and linguistic uncertainties, T2ABFC has the potential to produce better performances in many respects, such as stability and resistance to disturbances. Finally, a biological simulation example is provided to illustrate the feasibility of control scheme proposed in this paper.

Suggested Citation

  • Ll Yi-Min & Yue Yang & Li Li, 2012. "Adaptive Backstepping Fuzzy Control Based on Type-2 Fuzzy System," Journal of Applied Mathematics, Hindawi, vol. 2012, pages 1-27, March.
    • Handle: RePEc:hin:jnljam:658424
    DOI: 10.1155/2012/658424
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    Cited by:

    1. Qingyu Su & Fei Dong & Xueqiang Shen, 2018. "Improved Adaptive Backstepping Sliding Mode Control of Static Var Compensator," Energies, MDPI, vol. 11(10), pages 1-12, October.

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