Control of multivariable Hammerstein systems by using feedforward passivation
- Publication Type:
- Journal Article
- Industrial and Engineering Chemistry Research, 2005, 44 (4), pp. 891 - 899
- Issue Date:
This paper presents a new control method for processes which can be described by Hammerstein models. The control design is based on the concept of passive systems. The proposed method is based on feedforward passivation and thus can be applied to nonminimum phase processes and/or processes of high relative degree. A synthesis technique for marginally stable positive real systems has been developed to achieve offset free control. The new control design can be easily implemented by solving a set of linear matrix inequalities. The proposed approach is illustrated using the example of an acid-base pH control problem.
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