کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
172307 458531 2015 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Exploitation of the control switching structure in multi-stage optimal control problems by adaptive shooting methods
ترجمه فارسی عنوان
بهره برداری از ساختار سوئیچینگ کنترل در چند مرحله کنترل بهینه با استفاده از روش های تیراندازی سازگار
کلمات کلیدی
بهینه سازی پویا، پالایش شبکه کنترل، کنترل بهینه چند مرحله ای، تشخیص ساختار، تیراندازی چندگانه، تک تیراندازی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Exploitation of the control switching structure for multi-stage problems.
• Exploitation of the control switching structure for multiple-shooting problems.
• Wavelet-based grid refinement of nested multi-stage/multiple-shooting problem.
• A new measure to evaluate the intermediate constraint violation.

The adaptive switching structure approach is generalized from single-stage problems and single-shooting to multi-stage problems and multiple-shooting. This generalization is based on previous work on the exploitation and detection of the control switching structure and wavelet-based control grid refinement for single-stage problems. Here, single-shooting is employed to transcribe the multi-stage optimal control problem (OCP) into a nonlinear programming problem. The proposed multi-stage formulation is also capable to represent the transcription of single-stage OCP stemming from multiple-shooting. Thus, the previously reported adaptive multiple-shooting approach is extended by an adaptation of the switching structure. Finally, a new stopping criterion is introduced that measures the intermediate constraint violation at the optimal solution.The proposed adaptive switching structure detection is illustrated for a multi-stage and a multiple-shooting problem using the Williams–Otto semi-batch reactor. A solution of user-specified accuracy in the objective and the path-constraints can be obtained using only few decision variables.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Chemical Engineering - Volume 73, 2 February 2015, Pages 82–101
نویسندگان
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