کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
689057 889588 2012 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sensitivity compensating nonlinear control: Exact model based approach
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Sensitivity compensating nonlinear control: Exact model based approach
چکیده انگلیسی

A novel sensitivity compensating nonlinear control (SCNC) approach is proposed within generic model control (GMC) framework for processes exhibiting input sensitivity. The proposed approach consists of defining a new process, control law and set point such that the determined control action drives the original process to its desired set point. External reset feedback (ERF), used to compensate for input saturation, is extended to higher relative degree systems as extended ERF (EERF), and is incorporated in the context of SCNC approach. The proposed control algorithms are evaluated by application to an open-loop unstable CSTR control problem and a multi-product semi-batch polymerization reactor temperature control problem. The present study illustrates the versatility of the proposed SCGMC schemes compared to the basic GMC schemes in terms of output tracking and smoother input profiles. SCNC can be extended to other nonlinear model based controllers where the control law can be expressed analytically.


► A novel sensitivity compensating control approach proposed within GMC framework.
► Involves definition of new process, control law and set point to achieve smooth inputs.
► Approaches tested on an open-loop unstable CSTR and a semi-batch reactor problem.
► Proposed schemes shown to have better output tracking with smoother input profiles.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Process Control - Volume 22, Issue 3, March 2012, Pages 564–582
نویسندگان
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