Skip to main content
placeholder image

A novel exponential reaching law for sliding mode control of discrete-time system with disturbance

Conference Paper


Abstract


  • In this paper, a novel reaching law for discrete-time sliding-mode control system is proposed. In the proposed method, the proportional term is replaced by an exponential term that dynamically adapts to the variation of the sliding variable. The proposed reaching law in this paper has two merits, one is to ensure the stability and better robustness of the controlled plant than the existing approaches, and another is effectively eliminating undesirable chattering. And when the sliding variable tends to zero, the ultimate magnitude of the trajectory of system state around sliding surface in the proposed method is smaller than in previous approach. The simulation results validated the feasibility and reasonability of proposed method.

Authors


  •   Xu, Qian (external author)
  •   Song, J L. (external author)
  •   Yan, T H. (external author)
  •   Du, Haiping
  •   He, B (external author)
  •   Li, Weihua

Publication Date


  • 2019

Citation


  • Q. Xu, J. L. Song, T. H. Yan, H. P. Du, B. He & W. H. Li, "A novel exponential reaching law for sliding mode control of discrete-time system with disturbance," in 2018 Australian and New Zealand Control Conference (ANZCC 2018), 2019, pp. 275-280.

Scopus Eid


  • 2-s2.0-85062404786

Start Page


  • 275

End Page


  • 280

Place Of Publication


  • United States

Abstract


  • In this paper, a novel reaching law for discrete-time sliding-mode control system is proposed. In the proposed method, the proportional term is replaced by an exponential term that dynamically adapts to the variation of the sliding variable. The proposed reaching law in this paper has two merits, one is to ensure the stability and better robustness of the controlled plant than the existing approaches, and another is effectively eliminating undesirable chattering. And when the sliding variable tends to zero, the ultimate magnitude of the trajectory of system state around sliding surface in the proposed method is smaller than in previous approach. The simulation results validated the feasibility and reasonability of proposed method.

Authors


  •   Xu, Qian (external author)
  •   Song, J L. (external author)
  •   Yan, T H. (external author)
  •   Du, Haiping
  •   He, B (external author)
  •   Li, Weihua

Publication Date


  • 2019

Citation


  • Q. Xu, J. L. Song, T. H. Yan, H. P. Du, B. He & W. H. Li, "A novel exponential reaching law for sliding mode control of discrete-time system with disturbance," in 2018 Australian and New Zealand Control Conference (ANZCC 2018), 2019, pp. 275-280.

Scopus Eid


  • 2-s2.0-85062404786

Start Page


  • 275

End Page


  • 280

Place Of Publication


  • United States