...Andrzej Demenko; Kay Hameyer; Wojciech Pietrowski; Livio Šušnjić; Krzysztof Zawirski; Miha Šrekl; Blaž Bratina; Mykhaylo Zagirnyak; Boris Benedičič; Damijan Miljavec Purpose The purpose of this paper is the investigation of eddy currents induced in the axial‐flux permanent‐magnet machine housing...

...Kay Hameyer; Stefan Kulig; Lech Nowak; Krzysztof Zawirski; Teresa Orlowska‐Kowalska; Mateusz Dybkowski; Grzegorz Tarchala Purpose The purpose of this paper is to obtain an accurate and robust estimation method of the rotor flux and speed for the sensorless induction motor (IM) drive...

...Ahmed Masmoudi; Amina Ibala; Ahmed Masmoudi; Glynn Atkinson; Alan G. Jack Purpose This paper aims at the derivation of an accurate reluctance model of a transverse flux permanent magnet machine (TFPM) and its validation by finite element analysis (FEA). Design/methodology/approach Analytical...

... density, high efficiency, low‐torque ripple, good flux‐weakening and fault‐tolerance performance. The purpose of this paper is to overview recent development and research challenges in such machines in terms of various structural and design features for electric vehicle (EV)/HEV applications. Design...

...Ahmed Masmoudi; Ming Cheng; Xiaoyong Zhu Purpose The purpose of the paper is to model, analyze and control a new flux‐controllable stator‐permanent‐magnet brushless (PMBL) motor with skewed rotor. Design/methodology/approach A new flux‐controllable stator‐PMBL motor with skewed rotor...

... of the basic topologies of HPS, a case study is focused with an analysis of its current features. Of particular interest, those related to the flux‐weakening range extension and the cost‐effectiveness improvement are rethought in an attempt to stimulate the innovative capabilities of the students. Findings...

...Ahmed Masmoudi; Jin‐Tao Chen; Zi‐Qiang Zhu Purpose The purpose of this paper is to analyze the phase coil connections and winding factors of flux‐switching permanent magnet (FSPM) brushless AC machines with all poles and alternate poles wound, and different combinations of stator and rotor pole...

... conduction. Figure 5 shows the measured and calculated iron losses when the perpendicular flux is 0.4 T and main flux is 0‐1.4 T. The calculated results indicate that considerable in‐plane eddy‐current loss is generated at the Epstein core. This loss is as large as the eddy current loss caused...

... modulation especially when the machine is loaded. Its main signal component has twice the electrical frequency of the fundamental wave as only the saturation level not its direction is detected. Its spatial angle is thus dependent on both the directions of the main flux and that of the leakage flux...

... The proposed control method uses two kind of techniques: a flux‐based commutation technique prevents the negative phase torque always. On the other hand, a direct phase‐torque distribution technique gives suitable each phase‐torque command under limited DC voltage. These techniques can track motor torque...

...Bo Hu Li; Tianyuan Xiao; Lin Zhang; Massimo Fabbri Purpose The purpose of this paper is to evaluate analytically the magnetic flux density and the magnetic vector potential produced by a linear current density or a linear magnetization inside an arbitrary polyhedron. Design/methodology/approach...

... losses come from harmonics, on DC‐bias field. Moreover, it formulates possibilities of their utilization to iron loss estimation in case of deformed flux. On the other hand, it discusses the influence of DC‐bias field on static hysteresis and classical eddy current losses. Research limitations...

... into account the minor loops behaviour and be included in a finite element code. The methodology is useful for the design and analysis of electromagnetic devices under distorted flux patterns. A voltage fed Epstein frame is used to verify experimentally the proposed methodology with a Fe‐Si 3 per cent non...

...Patrick Dular; Gerard Meunier; Francis Piriou; Marie‐Ange Raulet; Fabien Sixdenier; Benjamin Guinand; Laurent Morel; René Goyet Purpose The purpose of this paper is to analyze the main assumption of a dynamic flux tube model and to define its rules of use. Design/methodology/approach...

...Ahmed Masmoudi; Abdessattar Guermazi; Bassem El Badsi; Mourad Masmoudi; Ahmed Masmoudi Purpose This paper seeks to discuss the implementation of the rotor flux oriented control (RFOC) in a four‐switch three‐phase inverter (FSTPI)‐fed induction motor drive. Design/methodology/approach...

...S. Wiak; Fabrizio Marignetti; Gianni Tomassi; James R. Bumby Purpose To provide a general framework for the electromagnetic analysis of axial flux motors and generators. Design/methodology/approach The procedure is based on the solution of Maxwell's equation in a cylindrical frame. All field...

..._(h^{_) are equal only if the FE solution corresponds to the exact solution. Finite element analysis Force measurement Electric machines Actuators Flux Transverse waves The finite element (FE) method is a versatile and powerful numerical method for the solution of partial}...

... To calculate the volume, a necessary flux density and an inductance are calculated by the permeance method. All mechanical parameters, stator diameter, teeth width, turn number and so on, realize the necessary flux density and an inductance, and these parameters are expressed as a function of a rotor diameter...

...Andrzej Demenko; Kay Hameyer; Lech Nowak; Krzysztof Zawirski; Wojciech Burlikowski Purpose Aims to present a new approach for formulating state‐space equations of an electromechanical actuator using magnetic flux linkages as state variables. Design/methodology/approach The model is based...

... behaviour under such faults at rated conditions, since the tests are largely destructive. Therefore, models are of great importance to avoid severe damage to machines. In this paper, a model based on flux rearrangement around the damaged turn is presented. Two roles are assigned simultaneously...