Control-Theoretic Analysis of a Closed-Loop PPC System |
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Authors: | N DuffieI Falu |
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Affiliation: | Laboratory for Applied Manufacturing Control, Department of Mechanical Engineering University of Wisconsin Madison, USA |
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Abstract: | An analysis of a production planning and control system with closed-loop control of backlog and work-in-progress is presented in this paper, illustrating integration of methods of control engineering with methods of production engineering. The architecture of the system is described and a control-theoretic dynamic model is developed that includes uncertainties in capacity and work input that result from equipment failures, rush orders, etc. Transfer function analysis is used to model dynamic relationships between system inputs and variables including backlog and work-in-progress. The results are used to select control laws for desired system performance and to calculate system response. |
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Keywords: | Production Control Analysis |
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