..., in terms of a current vector potential T and a magnetic scalar potential ϕ known as T ,ϕ-ϕ formulation, to set up the equation system (Koczka and Bíró, 2010): Finite element methods 3D FEM Eddy currents Electromagnetics Non-linear Magnetic circuit...

... parameter. This is achieved by an additional smoothness condition. Findings – By incorporating the smoothness condition into the discretization, the paper obtains a non-linear system of equations complemented by a minimization constraint. This problem is solved by a modified Newton method, which needs...

... compensator is equal to zero. © MCB UP Limited 2003 Optimization Electrical circuits Non‐linear e=the waveform of the source voltage in the time domain i=the waveform of the current in the time domain Z=the impedance operator in the time domain...

... Generators Optimization Non‐linear Programming Linearization Electrical machines, and salient pole synchronous generators in particular, have been designed and built for more than a century. The basic concept has remained the same as with the early machines. The product is mature in all aspects...

...Bernhard Weiß; Oszkár Bíró A geometric multigrid (MG) method for the efficient solution of 3D non‐linear magnetostatic field problems is presented. A finite element method (FEM) with edge elements is used to describe the magnetic vector potential. A numerical example is presented to demonstrate...

...B. Cannas; S. Cincotti; A. Fanni; M. Marchesi; F. Pilo; M. Usai Many practical applications of neural networks require the identification of non‐linear deterministic systems or chaotic systems. In these cases the use of a network architecture known as locally recurrent neural network (LRNN...

...Michal Tadeusiewicz Dynamic non‐linear circuits driven by DC voltage and current sources are considered in the paper. The problem of identification of asymptotically stable equilibrium states is analyzed. The circuits are studied where there is a one‐to‐one correspondence between each operating...

... of thermal noise in reciprocal non‐linear RLC networks is presented. This description is derived from first principles, i.e. from a direct application of non‐equilibrium thermodynamics (irreversible thermodynamics) to electrical networks. As an example, the class of “complete” non‐linear networks...

...Gerhard Paoli; Oszkár Bíró One way to deal with non‐linearity in the case of time harmonic excitation of the electric and magnetic fields in ferromagnetic media is to introduce an effective material to model the ferromagnetic region. This fictitious material is constant throughout a period...