Buscar
Mostrando ítems 1-10 de 395
Use of piecewise linear models for optimal control of nonlinear systems
(Institute of Advanced Scientific Research, 2009-12)
The optimal feedback control of nonlinear process is attacked in this paper. The solution of this problem is numerically computed using a Continuous Piecewise Linear (CPWL) approximation of the Ordinary Differential Equations ...
Dynamic ‘back‐off’ analysis: use of piecewise linear approximations
(John Wiley & Sons Ltd, 2003-04-10)
The operating point of a process is usually computed by optimizing an objective function, e.g. the profit, subject to some plant characteristics. Typically, the resulting point lies on the boundary of the operating region. ...
Partial Differential Equations for Missing Boundary Conditions in the Linear-Quadratic Optimal Control Problem
(Planta Piloto de Ingeniería Química, 2009-12)
New equations involving the unknown final states and initial costates corresponding to families of LQR problems are found, and their solutions are computed and validated. Having the initial values of the costates, the ...
Accelerated particle swarm optimization with explicit consideration of model constraints
(Springer, 2020-03)
Population based metaheuristic can benefit from explicit parallelization in order to address complex numerical optimization problems. Typical realistic problems usually involve non-linear functions and many constraints, ...
Surrogate-model based MILP for the optimal design of ethylene production from shale gas
(Pergamon-Elsevier Science Ltd, 2020-10-04)
We propose a novel algorithm for the optimal design of entire plants by refining piecewise linear surrogate models within an iterative framework. We apply this strategy to a superstructure for ethane-based ethylene production, ...
A multiperiod model for production planning and design in a multiproduct batch environment
(Pergamon-Elsevier Science Ltd, 2009-04)
A general multiperiod model to optimize simultaneously production planning and design decisions applied to multiproduct batch plants is proposed. This model includes deterministic seasonal variations of costs, prices, ...
Optimal dual fusion frames for probabilistic erasures
(Int Linear Algebra Soc, 2017-06)
For any fixed fusion frame, its optimal dual fusion frames for reconstruction is studied in case of erasures of subspaces. It is considered that a probability distribution of erasure of subspaces is given and that a blind ...
Online suboptimal control of linearized models
(Taylor & Francis, 2014-04)
A novel approach to approximately solving the restricted-control LQR problem online is substantiated and applied in two case-studies. The first example is a one-dimensional system whose exact solution is known. The other ...
Minimizing control energy in a class of bounded-control linear-quadratic regulator problems
(Wiley, 2013-05)
Minimal-control-energy strategies are substantiated and illustrated for linear-quadratic problems with penalized endpoints and no state-trajectory cost, when bounds in control values are imposed. The optimal solution for ...
Optimization of multilayered walls for building envelopes including PCM-based composites
(Molecular Diversity Preservation International, 2020-06-20)
This work proposes a numerical procedure to simulate and optimize the thermal response of a multilayered wallboard system for building envelopes, where each layer can be possibly made of Phase Change Materials (PCM)-based ...