Results 31 to 40 of about 336,796 (327)

An Efficient Methodology for Locating and Sizing PV Generators in Radial Distribution Networks Using a Mixed-Integer Conic Relaxation

open access: yesMathematics, 2022
This paper proposes a new solution methodology based on a mixed-integer conic formulation to locate and size photovoltaic (PV) generation units in AC distribution networks with a radial structure.
Oscar Danilo Montoya   +2 more
doaj   +1 more source

Disjunctive cuts in Mixed-Integer Conic Optimization

open access: yesMathematical Programming, 2022
This paper studies disjunctive cutting planes in Mixed-Integer Conic Programming. Building on conic duality, we formulate a cut-generating conic program for separating disjunctive cuts, and investigate the impact of the normalization condition on its resolution. In particular, we show that a careful selection of normalization guarantees its solvability
Lodi A., Tanneau M., Vielma J. -P.
openaire   +4 more sources

Linearized model for optimization of coupled electricity and natural gas systems

open access: yesJournal of Modern Power Systems and Clean Energy, 2017
In this paper a combined optimization of a coupled electricity and gas system is presented. For the electricity network a unit commitment problem with optimization of energy and reserves under a power pool, considering all system operational and unit ...
Mathias SIRVENT   +3 more
doaj   +1 more source

Reactive power compensator location and capacity determination strategy based on second-order cone programming [PDF]

open access: yesJournal of Hebei University of Science and Technology, 2023
In response to the problems of slow solving speed and difficult parameter selection in the current proposed dynamic reactive power compensation device location and capacity determination strategies, a dynamic reactive power compensation device location ...
Liqun SHANG   +4 more
doaj   +1 more source

Automatic instantiation of a Variable Neighborhood Descent from a Mixed Integer Programming model

open access: yesOperations Research Perspectives, 2017
In this paper we describe the automatic instantiation of a Variable Neighborhood Descent procedure from a Mixed Integer Programming model. We extend a recent approach in which a single neighborhood structure is automatically designed from a Mixed Integer
Tommaso Adamo   +3 more
doaj   +1 more source

Efficient Decomposition Method for Integrating Production Sequencing and Dynamic Optimization for a Multi-Product CSTR

open access: yesChemical Engineering Transactions, 2014
Integration of scheduling and control can improve the overall performance of a manufacturing process. However, the integration leads to a mixed-integer dynamic optimization problem (MIDO), which could be challenging to solve. We propose a novel algorithm
Y. Chu, F. You
doaj   +1 more source

Techno-economic performance analysis in a nanogrid with Hybrid Renewable Energy Sources using classical optimization technique

open access: yesEnergy Reports, 2021
Optimization algorithms are tools used in the planning and operations of renewable energy-based distributed power systems. Mixed integer linear programming as a classical optimization method is considered in the literature for sizing nanogrid systems due
Gourab Das, M. De, K.K. Mandal
doaj   +1 more source

The Voice of Optimization

open access: yes, 2020
We introduce the idea that using optimal classification trees (OCTs) and optimal classification trees with-hyperplanes (OCT-Hs), interpretable machine learning algorithms developed by Bertsimas and Dunn [2017, 2018], we are able to obtain insight on the ...
Bertsimas, Dimitris   +1 more
core   +1 more source

A mixed-integer approximation of robust optimization problems with mixed-integer adjustments

open access: yesOptimization and Engineering, 2023
AbstractIn the present article we propose a mixed-integer approximation of adjustable-robust optimization problems, that have both, continuous and discrete variables on the lowest level. As these trilevel problems are notoriously hard to solve, we restrict ourselves to weakly-connected instances. Our approach allows us to approximate, and in some cases
Jan Kronqvist, Boda Li, Jan Rolfes
openaire   +2 more sources

A decomposition approach for integrated locomotive scheduling and driver assignment in rail freight transport

open access: yesEURO Journal on Transportation and Logistics
In this work, we consider the integrated problem of locomotive scheduling and driver assignment in rail freight companies. Our aim is to compute an optimal simultaneous assignment of locomotives and drivers to the trains listed in a given order-book ...
Andreas Bärmann   +2 more
doaj   +1 more source

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