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Control of nonlinear systems with mismatched uncertainties using an output feedback

출력피드백에 의한 비매칭 불확실성이 있는 비선형계의 제어

Park, Chang-Yong;Sung, Yul-Wan;Kwon, Oh-Kyu
박창용;성열완;권오규

  • Published : 1997.08.01

Abstract

In this paper, we design output feedback nonlinear dynamic control law by using state feedback nonlinear dynamic compensator and PI observer and show that the controller can stabilize globally and asymptotically a class of nonlinear systems with mismatched uncertainties. We also show that it is possible for a nonlinear system to use the output of PI observer in place of state variables in case that the nonlinear dynamic control law is used, similarly as in the linear system. The effectiveness of the proposed control law is demonstrated by a numerical simulation.

Keywords

Output Feedback;PI Observer;Mismatched Uncertainties;Nonlinear System