Equivalent and efficient optimization models for an industrial discrete event system with alternative structural configurations
Fecha
2018Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
10.1155/2018/5341346
Resumen
Discrete event systems in applications, such as industry and supply chain,may show a very complex behavior. For this reason, their
design and operation may be carried out by the application of optimization techniques for decision making in order to obtain their
highest performance. In a general approach, it is possible to implement these optimization techniques by means of the simulation
of a ...
[++]
Discrete event systems in applications, such as industry and supply chain,may show a very complex behavior. For this reason, their
design and operation may be carried out by the application of optimization techniques for decision making in order to obtain their
highest performance. In a general approach, it is possible to implement these optimization techniques by means of the simulation
of a Petri net model, which may require an intensive use of computational resources. One key factor in the computational cost of
simulation-based optimization is the size of the model of the system; hence, it may be useful to apply techniques to reduce it. This
paper analyzes the relationship between two Petri net formalisms, currently used in the design of discrete event systems, where it
is usual to count on a set of alternative structural configurations.These formalisms are a particular type of parametric Petri nets,
called compound Petri nets, and a set of alternative Petri nets. The development of equivalent models under these formalisms and
the formal proof of this equivalence are the main topics of the paper.The basis for this formal approach is the graph of reachable
markings, a powerful tool able to represent the behavior of a discrete event system and, hence, to show the equivalence between
two different Petri net models. One immediate application of this equivalence is the substitution of a large model of a system by a
more compact one, whose simulation may be less demanding in the use of computational resources. [--]
Materias
Discrete event systems,
Optimization techniques,
Petri net formalisms
Editor
Hindawi / Wiley
Publicado en
Complexity, Volume 2018, Article ID 5341346
Departamento
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC