... are compared to those obtained by computer design. A difference between computed and measured results is discussed. © MCB UP Limited 1998 Computer aided design (CAD) Electromagnetics Motor Torque A prototype of a special electrical machine ‐ double statored switched reluctance motor ‐ has...

... as deterministic methods, including the Levenberg‐Marquardt procedure. The comparison is performed using a number of test functions followed by a study of two simple configurations relevant to problems encountered in electromagnetics. Computer aided design (CAD) Electromagnetics Optimization...

... finite element method allowing the computation of the magnetic force. The aim is to obtain a desired force profile considering the armature movement. © MCB UP Limited 1998 Computer aided design (CAD) Electromagnetics Genetic algorithms Optimization Performance improvement...

... number of slots per pole and phase. © MCB UP Limited 1998 Computer aided design (CAD) Finite element Generators When a machine with salient poles is investigated, two reactances representing the stator reaction must be calculated: in direct axis X_d...

... by their corresponding equations: (1a) and (1b) for electric circuit in excitation and shading coils, Maxwell’s equations (2) for magnetic field and (3) for the mechanical displacement: (1a) (1b) Actuators Computer aided design (CAD) Electromagnetics Optimization © MCB UP Limited 1998...

... (t = 0) with initial conditions from solution of (1): © MCB UP Limited 1998 Computer aided design (CAD) Safety Switchgear According to a recent survey of accidents inside gas insulated switchgear (GIS), such accidents are often caused by particle inclusions and contact failures...

... are presented. In order to validate the method, an example is solved: a two‐variable problem (cylindrical capacitor with the distribution of potential fixed). © MCB UP Limited 1998 Computer aided design (CAD) Optimization Jan Sikora Technical University of Warsaw, Warsaw, Poland...

... Limited 1998 Computer aided design (CAD) Electrical engineering Magnetic channel Optimization Recent developments made in the software concerning electromagnetic field calculations enable engineers and scientists to concentrate their effort on accurate and optimal designing...

... aided design (CAD) Electromagnetics Optimization Nowadays, the problem of designing the shape of an electromagnetic device suitable for a prescribed performance can be solved in a systematic way by minimizing an objective function subject to geometrical and physical constraints. This kind...

... as a constrained optimization problem. An accurate model for the motor in terms of its dimensions has been developed which predicts the motor performance based on about 60 parameters of motor geometry. © MCB UP Limited 1998 Computer aided design (CAD) Induction motor Optimization Variable frequency...

...) of the correcting coils, to produce possibly uniform magnetic field on the segment < ‐ z₀, z₀ >. The objective function presented in[ 6 ]: © MCB UP Limited 1998 Computer aided design (CAD) Couplers Electromagnetics Optimization Solving inverse...

... procedure flowchart © MCB UP Limited 1998 Alternators Computer aided design (CAD) Wind power Figure 4 Output characteristics (Vout‐Iout) of the claw pole alternator supplying a rectified resistive load with excitation current (If) Figure 3 Equivalent magnetic...

.... The main advantages of this type of sensor are that it is essentially a passive device (not requiring any supply) and has good sensitivity and linearity of response. © MCB UP Limited 1998 Computer aided design (CAD) Electromechanical transducers From equation (3), it is apparent...