This paper focuses on the analysis of conservatism introduced due to some model transformations used in the control literature. This work is an extension of a previous paper by the authors (1999) on additional dynamics. The additional dynamics of the second order and parametrized model transformations are examined. The neutral model transformation introduces additional constraints for stability, which can be analyzed in a very similar manner to additional dynamics.
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Gu et al. (2001) studied this question.
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