Robust bang-bang control of disturbed nonlinear systems based on nonlinear observers

• DOI: 10.17775/cseejpes.2018.01310
• Publication Date: 2019-05-14T01:19:52Z
• Authors: Yang Liu; Yufeng Chen; ; Kaishun Xiahou; ; Wenhu Tang; ; Q. H. Wu
• Keywords: Tracking error; Observer (physics)

This paper proposes a robust bang-bang controller (RBC) based on the high-gain nonlinear observer for system with intermittent disturbances. The disturbances are able to model faults and sudden changes of operating conditions practical systems. A constant funnel (BCFC) is employed, largest control capabilities explored stabilize against BCFC functions estimates tracking error target its derivatives estimated state observer, which eliminates requirement derivative calculations output error. convergence verified. closed-loop stability RBC proved in bounded-input bounded-state sense. Simulation studies undertaken single-machine infinite-bus (SMIB) power test performance RBC.