...) and outside (w_{2) the elliptic cross-section matrix can be expressed as follows: © Emerald Group Publishing Limited 2016 Magnetic devices Magnetism Magnetic separation Magnetic field and gradient Elliptic cylinder matrices Capture cross-section (Equation 1}...

... on the porosity factor. Significant advantage of derived equations is their simplicity and easy to use for the inductor designers. d  diameterofsolid-round-wirewinding; Power losses Magnetic devices High-frequency inductors Boundary frequency Eddy currents High-frequency transformers Litz...

... of the high-speed rotor, and N_h is the number of pole pairs. Rotating machines Magnetic devices Conventional drive systems which consist of a motor, mechanical gear, and torque limiter are expected to be replaced by a single integrated system which consists of only...

... head IPM motor Magnetic devices Finite element analysis In the development of an electromagnetic device, the design based on the experience of designers is usually performed. Recently, various optimal design methods using electromagnetic field analysis are developed and applied to the design...

... Magnetic devices Magnetic fields X‐axis=horizontal direction in the cross‐section of BSRM Y‐axis=vertical direction in the cross‐section of BSRM N_a=A‐phase main winding of BSRM N_b=B‐phase main winding of BSRM...

... dampers (Bae et al., 2009). In these cases, the radii of the magnet and of the pipe are close. Eddy currents Magnets Velocity Finite element methods Finite element analysis Magnetic devices © Emerald Group Publishing Limited 2012 S. Dufour can be contacted...

... design of magnetic devices by optimizing material distribution ”, IEEE Transactions on Magnetics , Vol. 32 No. 4 , pp. 1188 ‐ 93 . Labbé , T. and Dehez , B. (2010a), “ Convexity‐oriented mapping method for the topology optimization of electromagnetic devices composed of iron...

... at the optimum. Originality/value Thanks to the kinematic law governing the movement of the boundary to synthesize, the overall computational cost is low. Moreover, the non‐parametric approach to the shape synthesis preserves the advantage of a broad search space. Magnetic fields Magnetic devices...

... exploration or exploitation. © Emerald Group Publishing Limited 2012 Optimization techniques Electromechanical devices Magnetic devices Kriging Surrogate modelling Robust design Electromagnetics Electromagnetic design almost always carries a heavy burden of high computational...

... have thus that: Equation 13 with θ =(∂ Y (b , u))/(∂ b) and Ψ =(∂ Y (b , u))/(∂ u). © Emerald Group Publishing Limited 2012 Electromagnetism Magnetic devices Physical properties of materials Optimum design Optimal experiment design Stochastic Cramér‐Rao bound Inverse problem...

... devices are used for realization of thin films, largely applicable in materials development. In particular, thin electromagnetic shields constitute an important issue in the research field of electromagnetic compatibility (D'Amore, 2007). 2D numerical model Magnetic devices Magnetron sputtering...

...‐speed operation Magnetic devices Electric motors An experimental control system is built to validate the sensorless control technique with a 1.8‐kW 85,000‐rpm high‐speed PM BLDC motor, which is used for an electric‐assisted turbocharger. A two‐pole PM ring, which is fixed on the BLDC motor...

... Magnetic devices The permanent magnet (PM) machine is adopted in several applications, thanks to its high‐torque density and high efficiency. The PM is a key element of the machine which is also the more expensive component. In addition, particular care has to be given during operating conditions...

... weakening region, and on the dq‐axis inductances has been investigated. Cross‐coupling End‐effect Flux weakening Flux‐switching Permanent magnet Switched flux Magnetic devices Automotive industry Permanent magnet (PM) brushless machines become more and more attractive for commercial...

... published. Z. De Grève can be contacted at: zacharie.degreve@umons.ac.be © Emerald Group Publishing Limited 2011 Finite element analysis Homogenization of windings Multi‐winding transformers Computation Magnetic devices Many power electronic circuits operate at high switching...

... or the failure probability is higher. Both cases are studied in the following. Electrical machines Torque Tolerances Magnetic devices Manufacturing systems In permanent magnet excited machines, cogging torque is caused by the interaction between the rotor magnets and the stator slots. It results...

... of the stator lamination stacking method on the level of torque oscillations. © Emerald Group Publishing Limited 2011 Torque Electrical machines Magnetic devices Harmonics High‐performance drives in automotive applications require permanent magnet synchronous motors (PMSM) that produce...

... Group Publishing Limited 2010 Magnetic devices Printed circuits Inductance Transformers Equation (1), used for calculating the leakage inductance per unit length of the structure in a coaxial transformer, is given below (Rauls et al., 1993 ; Kheraluwala et al., 1992...

... rotor position for the third middle segment, for the initial motor and the GA solution, is shown in Figure 9(a) and (b) , respectively. Magnetic devices Electric motors Vehicle components Optimization techniques When optimising an electric motor, there are multiple choices...

... 2009 Magnetic devices Electrical engineering Windings Inductance The winding configurations which are most commonly employed for three‐phase radial‐field PM brushless machines, can be classified as: overlapping, either distributed, Figure 2(a) (2 slot/pole/phase...