Niaona Zhang

Publications (2)0 Total impact

• Conference Proceeding: Optimization of terminal sliding control for two-link flexible manipulators

  Niaona Zhang, Yong Feng, Xinghuo Yu
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  ABSTRACT: A terminal sliding mode controller is proposed for a two-link flexible manipulator to address its non-minimum phase characteristics using the output redefinition method. The manipulator is decomposed into two parts by input-output linearization, namely, an input-output subsystem and the zero dynamics respectively. A terminal sliding mode control strategy is designed to make the input-output subsystem converge to their equilibrium points in finite time. The relationship between the eigenvalues of the zero dynamics and the parameters of the redefined output is obtained. The parameters of the controller are optimized using a chaos based genetic algorithm to guarantee the zero dynamics to be asymptotically stable at equilibrium points, and thus guarantee that the entire flexible manipulator system is asymptotically stable. Simulation results are presented to validate the design.
  Industrial Electronics Society, 2004. IECON 2004. 30th Annual Conference of IEEE; 12/2004
• Conference Proceeding: Terminal sliding mode control of MIMO linear systems with unmatched uncertainties

  Yuye Wang, Yong Feng, Xinghuo Yu, Niaona Zhang
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  ABSTRACT: This paper presents a terminal sliding mode controller for the MIMO linear systems with the unmatched uncertainties. A special terminal sliding mode manifold and control technique are proposed to guarantee the system states to reach the sliding mode manifold in finite time, and subsequently converge to the neighborhood of the equilibrium points in finite time. The mathematical relationship between the neighborhood of the equilibrium points and the range of the unmatched uncertainties and parameters of the sliding mode is formulated, which can be used for the system design and analysis. Simulation results are presented to validate the design.
  Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE; 12/2003