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Optimal current waveforms for torque control of permanent magnet synchronous machines with any number of phases in open circuit

Baudart, F.; Matagne, E.; Dehez, B.; Labrique, F. - In: Mathematics and Computers in Simulation (MATCOM) 90 (2013) C, pp. 1-14

Polyphase permanent magnet synchronous motors are well suited for electromechanical actuation systems demanding a high level of reliability. They are indeed able to run on a reduced number of phases and therefore to make the actuation system fault tolerant. The paper introduces a Lagrangian...

Persistent link: https://www.econbiz.de/10010869994

Optimization and correction of the tool path of the five-axis milling machine

Makhanov, Stanislav - In: Mathematics and Computers in Simulation (MATCOM) 75 (2007) 5, pp. 210-230

We introduce three algorithms for optimization of a tool path of a numerically controlled five-axis milling machine …

Persistent link: https://www.econbiz.de/10010749709

Parameter identification via neural networks with fast convergence

Yadaiah, N.; Sivakumar, L.; Deekshatulu, B.L. - In: Mathematics and Computers in Simulation (MATCOM) 51 (2000) 3, pp. 157-167

The parameter identification using artificial neural networks is becoming very popular. In this chapter, the parameters of dynamical system are identified using artificial neural networks. A fast gradient decent technique for the parameter identification of a linear dynamical system has been...

Persistent link: https://www.econbiz.de/10010749884

A wave-splitting based optimization approach to multi-dimensional time-domain electromagnetic inverse problems

Gustafsson, Mats; He, Sailing - In: Mathematics and Computers in Simulation (MATCOM) 50 (1999) 5, pp. 541-551

An optimization approach to a multi-dimensional electromagnetic inverse problem in the time domain is considered. Wave …-splitting is integrated in the optimization algorithm. An analysis based on energy estimates is given to show that the wave …

Persistent link: https://www.econbiz.de/10010749910

An integrated artificial neural network-computer simulation for optimization of complex tandem queue systems

Azadeh, A.; Faiz, Z.S.; Asadzadeh, S.M.; … - In: Mathematics and Computers in Simulation (MATCOM) 82 (2011) 4, pp. 666-678

This paper presents an integrated artificial neural network-computer simulation (ANNSim) for optimization of G …

Persistent link: https://www.econbiz.de/10010751781

Optimal design of electromagnetic devices: Development of an efficient optimization tool based on smart mutation operations implemented in a genetic algorithm

Denies, J.; Ben Ahmed, H.; Dehez, B. - In: Mathematics and Computers in Simulation (MATCOM) 90 (2013) C, pp. 244-255

Topology optimization methods are aimed to produce optimal design. These tools implement optimization algorithms that … simple but representative case study, that it is possible to improve the performance of the topology optimization tool during … the local search phase, i.e. the geometrical and dimensional optimization phase for which the topology optimization …

Persistent link: https://www.econbiz.de/10010751832

Experimental design and genetic algorithm optimization of a fuzzy-logic supervisor for embedded electrical power systems

Breban, Stefan; Saudemont, Christophe; Vieillard, Sébastien - In: Mathematics and Computers in Simulation (MATCOM) 91 (2013) C, pp. 91-107

an optimization methodology of a fuzzy-logic supervision strategy. The optimization objectives are to minimize the DC …

Persistent link: https://www.econbiz.de/10010751847

Optimization of SMES and superconducting magnets with a derivative free deterministic method

Picaud, V.; Hiebel, P.; Kauffmann, J.M. - In: Mathematics and Computers in Simulation (MATCOM) 63 (2003) 3, pp. 393-406

This article presents a constrained optimization method, based on the duality theory, which does not need the gradients …. The method is used to optimize superconducting devices. In order to reduce the computing effort, the initial optimization … problem is divided into two coupled optimization problems. One manages the geometrical parameters, the other finds the best …

Persistent link: https://www.econbiz.de/10010870057

Optimization approaches to frequency-domain inverse problems for Kerr-like and non-Kerr-like nonlinear media

Norgren, Martin - In: Mathematics and Computers in Simulation (MATCOM) 50 (1999) 5, pp. 553-575

Two different kinds of frequency-domain inverse problems for nonlinear media are considered. In the first problem, the linear permittivity and the nonlinear parameter for a stratified slab of a Kerr-like medium are reconstructed as functions of the position from reflection and transmission data...

Persistent link: https://www.econbiz.de/10010870089

Sampling period scheduling of networked control systems with multiple-control loops

Peng, Chen; Yue, Dong; Gu, Zhou; Xia, Feng - In: Mathematics and Computers in Simulation (MATCOM) 79 (2009) 5, pp. 1502-1511

This paper addresses the sampling period scheduling of Networked Control Systems (NCSs) with multiple control loops. The generalized exponential function is employed to describe Integral Absolute Error (IAE) performance versus sampling period by Truetime toolbox under Matlab environment, and the...

Persistent link: https://www.econbiz.de/10010870155