کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
690045 | 889670 | 2006 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A closed loop exponential feeding law: Invariance and global stability analysis A closed loop exponential feeding law: Invariance and global stability analysis](/preview/png/690045.png)
This article addresses the computation of invariant control laws [A. Fradkov, I. Miroshnik, V. Nikiforov, Nonlinear and Adaptive Control of Complex Systems, Kluwer, 1999] for fed-batch fermenters represented by two standard models. It will be shown how to derive partial state feedbacks that, assuming ideal conditions and perfect model, keep the specific growth rate μ constant provided the initial conditions are adequate. The invariant control law is the closed loop version of the exponential feeding already suggested in several references as shown later. The paper presents an analysis of invariance and a study of global stability within the framework of partial stability. That is, stability with respect to some of the state variables. This enables us to treat the case with Haldane-like or non-monotonous kinetics.
Journal: Journal of Process Control - Volume 16, Issue 4, April 2006, Pages 395–402