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Web service based simulation tools will be an important aspect of discrete-event modeling and simulation (M&S) in Internet of things (IoT) systems. However, efforts to develop this kind of M&S tools are significant and it is difficult to have a tool suite that offer the modeling and the simulation of ubiquitous systems. The combination of the DEVSimPy environment and the DEVSimPy-mob hybrid...
This paper deals with a new transformation and fusion of digital input patterns used to train and test feed-forward neural network for a wound rotor three-phase induction machine winding short-circuits classification. Used input/output data have been binary coded in order to reduce the computation complexity. A new procedure, namely addition and mean of the set of same rank, has been handled to fuse...
The Modeling and Simulation (M&S) of complex systems leans on the collaboration between different actors coming from specific domains. These actors have to communicate through an efficient way in order to improve the M&S process. We therefore propose in this article a collaborative M&S software framework called DEVSimPy. We point out the use of DEVSimPy through a concrete case study: hydraulic...
For several years, we worked to improve a discrete events modeling formalism: called DEVS. Having defined a method to take into account the inaccuracies iDEVS, in this paper, we present the second part of our research work. Generally, our approach is to associate the DEVS formalism with an object class, which allows using it to new fields of study, and in our case fuzzy systems. This paper describes...
The aim of this paper is to compare different experimental techniques for detecting a stator inter-turn short-circuit in a Wound rotor induction machine working as generator. Three methods using different signals such as stator or rotor current and the leakage flux will be described and experimented. The rotor currents provide interesting signatures since the stator faults introduce new harmonics...
It is well known that a model of any electrical circuit can be translated into a system of ordinary differential equations. Usually, the simulation is performed in the time-domain using classical discrete approaches convenient for both linear and non-linear systems. An other method consists in the quantization on the variable magnitude which is based on discrete events. The discrete event system specification...
The aim of this paper is to compare two modeling methods for a wound-rotor induction machine in order to simulate it in both healthy and faulty modes. The circuit-oriented approach which represents the machine model as a rotating transformer will be compared to the discrete event method. First, the wound-rotor induction machine model will be described using the classical equations in the abc reference...
The aim of this paper is to develop a doubly-fed induction machine (DFIM) model suitable for the simulation of this machine in the healthy mode and faulty mode. Indeed, the developed model allows the simulation of the inter-turn short circuit in the stator or the rotor of the machine in any system with control circuits and/or connections to the grid by means of power electronics converters. The circuit-oriented...
The aim of this paper is to present a discrete event simulation of a three-phase wound-rotor induction machine in order to show the efficiency of the proposed method to take into account the different winding unbalances. In fact, these machines are used in large power wind turbine generators in which the fault detection becomes more and more a serious issue. Early fault detection in the machine windings...
This paper is about problems of testability of circuits. In account of the progress achieved in the field of integration, we are in presence of increasingly complex circuits. So to pose the problem of testability and maintenance, from the phase of the circuit design is the means more adapted in order to improve them and make it possible to carry out the test at a reasonable cost. In this article we...
This paper deals with the adaptation of AC electrical machine models for discrete event system simulator. The formalism chosen is DEVS (Discrete Event system Specification) which has been adapted recently for hybrid system simulation. The software PowerDEVS is close to MATLAB/Simulink(C) but without any toolbox adapted to power systems. As always, the model which is basically based on system of nonlinear...
The goal of this paper is to propose a behavioral modelling method of the electrical machine functioning, and more particularly of an induction generator machine. Our approach is based on VHDL-AMS (Very high speed integrated circuits Hardware Description Language for Analog and Mixed Signal) language and on the use of the Discrete EVent System specification: DEVS formalism. We show in this paper how,...
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