Output-feedback Control of a Class of High-Order Nonlinear Systems
This paper considers a concrete example, and designs an improved output-feedback controller from the viewpoint of reducing the control effort at premise of maintaining the desired control performance (e.g., asymptotical stability). By introducing a new rescaling transformation, adopting an effective reduced-order observer, and choosing ingenious Lyapunov function and appropriate design parameters, the output-feedback controller guarantees the globally asymptotical stability of the closed-loop system. Simultaneously, from both the theoretical analysis and a concrete example, the smaller critical values for gain parameter and rescaling transformation parameter are obtained to reduce effectively the control effort and the rate of change of controller than the design of the related papers. At last, simulations are given to compare the control effort of two control schemes.
High-order nonlinear systems Control effort reduction Rescaling transformation Output-feedback control
Na Duan Xue-Jun Xie
School of Electrical Engineering & Automation, Xuzhou Normal University, Xuzhou, Jiangsu Province, 221116, China
国际会议
The 22nd China Control and Decision Conference(2010年中国控制与决策会议)
徐州
英文
1633-1638
2010-05-26（万方平台首次上网日期，不代表论文的发表时间）