Optimization of Discrete-Continuous Dynamic Systems Based on Disjunctive Programming
نویسندگان
چکیده
In this contribution, a novel approach for the modeling and optimization of discrete-continuous dynamic systems based on a disjunctive problem formulation is proposed. It will be shown that a disjunctive model representation, which constitutes an alternative to mixed-integer model formulations, provides a very flexible and intuitive way to formulate discrete-continuous dynamic optimization problems. Moreover, the structure and properties of the disjunctive process models can be exploited for an efficient and robust numerical solution by applying generalized disjunctive programming techniques. The proposed modeling and optimization approach will be illustrated by means of an optimal control problem that embeds a linear discretecontinuous dynamic system.
منابع مشابه
Challenges and Research Issues for Product and Process Design Optimization
Optimization as an enabling technology has been one of the big success stories in process systems engineering. In this paper we present first a general review of optimization and its applications to a variety of problems in process systems engineering. Next, we provide an overview of two key areas: nonlinear programming and logic-based discrete/continuous optimization. In particular, recent adv...
متن کاملControl of Switched Hybrid Systems Based on Disjunctive Formulations
This contribution addresses the task of computing optimal control trajectories for hybrid systems with switching dynamics. Starting from a continuous-time formulation of the control task we derive an optimization problem in which the system behavior is modelled by a hybrid automaton with linear discrete-time dynamics and discrete as well as continuous inputs. In order to transform the discrete ...
متن کاملAdvances in Logic-based Optimization Approaches to Process Integration and Supply Chain Management
Optimization as an enabling technology has been one of the big success stories in process systems engineering. In this paper we present a review on recent research work in the area of logic-based discrete/continuous optimization. In particular, recent advances are presented in the modeling and solution of nonlinear mixed-integer and generalized disjunctive programming, global optimization and c...
متن کاملLOGMIP : a discrete continuous nonlinear optimizer
Discrete-continuous non-linear optimization models are frequently used to formulate problems in Process System Engineering. Major modeling alternatives and solution algorithms include generalized disjunctive programming and MINLP. Both have advantages and drawbacks depending on the problem they are dealing with. In this work, we describe the theory behind LOGMIP, a new computer code for disjunc...
متن کاملLogic-Based Modeling and Solution of Nonlinear Discrete/Continuous Optimization Problems
Logic-based Modeling and Solution of Nonlinear Discrete/Continuous Optimization Problems Sangbum Lee and Ignacio E. Grossmann Department of Chemical Engineering Carnegie Mellon University Pittsburgh, PA15213 November 28, 2003 (submitted to Annals of Operations Research) Abstract This paper presents a review of advances in the mathematical programming approach to discrete/continuous optimization...
متن کامل