Anti-windup control design for exponentially unstable LTI systems with actuator saturation |
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Authors: | Fen Wu Bei Lu |
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Affiliation: | aDepartment of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695, USA |
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Abstract: | In this paper, a new saturation control technique in the framework of anti-windup compensation is developed for exponentially unstable linear time-invariant systems subject to input nonlinearities. The proposed control algorithm guarantees regional stability in the existence of input saturation, and provides less conservative performance than most existing anti-windup schemes. Moreover, an explicit form of anti-windup controller with its order no more than the order of the plant is derived. An inverted pendulum example is used to demonstrate the advantages of the newly proposed anti-windup control technique. |
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Keywords: | Input saturation Sector-bounded nonlinearity Anti-windup compensation Linear matrix inequality |
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