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Anti-windup designs for multivariable controllers
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DOI：10.1016/S0005-1098(98)80009-5.png)
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摘要
En 中文
This paper addresses two important aspects of anti-windup (AW) designs, namely the parametrization of linear AW compensators, and the role of artificial nonlinearity (AN) in the design of AW compensators for multivariable systems. For the first issue, a simple parametrization is given using the classical feedback structure in the framework of constrained unity-feedback multivariable control systems. For the second issue, two existing AN designs for coordinating plant inputs whenever one plant input enters saturation are reviewed. A comparative simulation study illustrates that the conditioning technique, enhanced by optimal AN design, gives the best tracking performance among different existing methods. (C) 1998 Elsevier Science Ltd. All rights reserved.
Keyword:
control nonlinearities
multivariable control
saturation
anti-windup
direction preserving
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