Topic
Modeling and simulation
About: Modeling and simulation is a research topic. Over the lifetime, 10273 publications have been published within this topic receiving 111550 citations.
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01 Dec 1995
TL;DR: The Dynamic Structure Discrete Event System Specification formalism (DSDEVS) supports a new simulation paradigm, structural simulation, as opposed to conventional trajectory simulation, and supports changes in structure to the full extent, ranging from simple model/connection add/deletion to the exchange of models between network of models.
Abstract: Traditional simulation methodologies do not support changes in model structure during a simulation run. Current methodologies support only changes in model descriptive variables. Changes in structure are thus forced to be represented at the simple behavioral level. Many models are better represented at both behavioral and structural level. We present a new simulation formalism that fully supports changes in model structure and its closure under coupling. The Dynamic Structure Discrete Event System Specification formalism (DSDEVS) supports a new simulation paradigm, structural simulation, as opposed to conventional trajectory simulation. This new formalism supports changes in structure to the full extent, ranging from simple model/connection add/deletion to the exchange of models between network of models. The DELTA simulation environment, an implementation of the DSDEVS formalism, is briefly described.
73 citations
TL;DR: In this paper, two configurations of active shunt APF are presented using time domain analysis for compensation of three-wire (three-phase) and four-wire APF systems.
Abstract: This paper deals with the computer-based modeling and simulation of active power filters (APFs) employed for harmonic and reactive power compensation of nonlinear loads. Two configurations of active shunt APF are presented using time domain analysis for compensation of three-wire (three-phase) and four-wire (three-phase with neutral) systems. For the sake of generality and simplicity, PI (Proportional-Integral) controllers have been proposed for the control of APF. The usefulness of the simulation approach to APF application is demonstrated and discussed in detail. The developed computer package is expected to be a powerful tool to give a better insight to the APF designers.
73 citations
TL;DR: Free acceleration of squirrel-cage induction generator, active power and reactive power control of DFIGs in a power system as well as inter-area oscillation damping control are demonstrated using the proposed model.
73 citations
01 Jan 2005
TL;DR: An introduction of the objectives of the environment is given, an overview of the architecture is outlined and a number of examples are illustrated.
Abstract: Modelica is a modern, strongly typed, declarative, and object-oriented language for modeling and simulation of complex systems. This paper gives a quick overview of some aspects of the OpenModelica environment – an open-source environment for modeling, simulation, and development of Modelica applications. An introduction of the objectives of the environment is given, an overview of the architecture is outlined and a number of examples are illustrated.
73 citations
TL;DR: A macroscopic multi-lane model for uni-directional freeways including acceleration, deceleration, velocity fluctuations, overtaking and lane-changing maneuvers is systematically deduced from a gas-kinetic (Boltzmann-like) approach and contains corrections with respect to previous models.
Abstract: A most important aspect in the field of traffic modeling is the simulation of bottleneck situations. For their realistic description a macroscopic multi-lane model for uni-directional freeways including acceleration, deceleration, velocity fluctuations, overtaking and lane-changing maneuvers is systematically deduced from a gas-kinetic (Boltzmann-like) approach. The resulting equations contain corrections with respect to previous models. For efficient computer simulations, a reduced model delineating the coarse-grained temporal behavior is derived and applied to bottleneck situations.
73 citations