... sequence cleaning algorithm enhances rotor manufacturability by eliminating micro-regions within the given design domain. The weights of the Laplace function are selected as design variables, the torque performance of IPMSM and the volume of permanent magnet are optimized as objectives of optimization...

... A coupled 3D finite element model is proposed, combining electromagnetic and transient thermal analyses to account for eddy-current losses, temperature rise and torque reduction. The model includes full geometry and armature reaction effects. A prototype is designed and experimentally tested to validate...

... potential formulation applied in the coil region and a scalar potential formulation in the air and magnet regions. The magnetic fields produced by the permanent magnets and the stator currents are then used to derive analytical expressions for the electromotive force ( EMF ), electromagnetic torque...

... different levels of torques in special applications such as wind energy conversion and electrical vehicles. The proposed TSCMG consists of inner, middle and outer rotor, which has one rotor more than its conventional counterpart. The suggested TSCMG’s related equations such as transform ratio and torque...

... density, unbalanced magnetic force, cogging torque and electromagnetic torque, are analytically predicted. Then, the influence of design parameters on the torque is explored by using the analytical model. Findings The finite element analysis and prototype experiments verify the analytical model’s...

...Xiaodong Sun; Zhuicai Zhou; Long Chen; Zebin Yang; Shouyi Han Purpose Inductance, torque and iron loss are the key parameters of switched reluctance motors for belt-driven starter generators. This paper aims to present the analysis of a segmented rotor switched reluctance motor (SSRM) with three...

... oscillations without smoothing edges. Dr Piotr Putek can be contacted at: Piotr.Putek@zut.edu.pl © Emerald Group Publishing Limited 2014 Topology Design optimization Torque Permanent-magnet machine Sensitivity analysis Shape optimization of rotor poles Nowadays, permanent-magnet...

... Focus is given on both synchronous permanent magnet and reluctance machines. An overview of the design rules are provided, covering the topics of: fractional‐slot windings, fault‐tolerant configurations, flux‐weakening capability, and torque quality. Findings The peculiarities of these machines...

.... Findings It has been proved that control parameters that maximize the power extraction from the waves can be derived based on the power and torque constraints imposed by the electrical machine. Originality/value An optimized and integrated approach to the control strategy selection and generator...

...Eng. Ahmed Masmoudi; Bassem El Badsi Purpose The aim of this paper is to propose a novel direct torque control (DTC) strategy for induction motor (IM) drives fed by three‐switch three‐phase inverter (TSTPI). The introduced strategy is based on the emulation of the operation of the conventional six...

...Eng. Ahmed Masmoudi; M.F.J. Kremers; J.J.H. Paulides; T.E. Motoasca; E.A. Lomonova Purpose The purpose of this paper is to discuss the performance of a proposed machine design for an in‐wheel motor with the required torque‐speed characteristic. Design/methodology/approach Calculation...

.... This provides a smooth rotor surface, a robust mechanical structure of the rotor which is suitable for high speeds, as well as a forceful mounting of the PMs protecting them from physical damage and from demagnetization. The presence of reluctance torque attributed to the magnetic saliency of the IPM rotor...

... vector control system synthesis was applied using the multiscalar variables of the machine model with nonlinear feedback linearization applied to use classical cascaded PI controllers for the speed‐torque and flux decoupled control. Speed observer was applied for the rotor flux and rotor speed estimation...

... is carried out in order to select a set of suitable geometrical parameters. Then, the comparison between both machines is extended to the torque production capability. Findings It has been found that the 9 slot/10 pole machine has a pic value of the average magnetic force reaching almost 40N which...

.... Based on these models, finite element analyses (FEA) are performed, and the results are compared in terms of open‐circuit back electromotive force (EMF), electrical loading capability, and thermal conditions. Findings Within the same volume constraint, a 12/14 FSMs can achieve the maximum torque...

...Eng. Ahmed Masmoudi; Lech M. Grzesiak; Tomasz Tarczewski Purpose The purpose of this paper is to discuss the design and verification of a non‐classical structure of servo‐drive controller with the state feedback and a load torque feedforward compensation. Design/methodology/approach First...

...Siavash Sadeghi; Leila Parsa Purpose The purpose of this paper is to minimize the torque pulsation in Halbach array permanent magnet synchronous machines (PMSMs). Design/methodology/approach Because of its specific structure, the cogging torque influences the main part of the torque pulsation...

... the calculated results and the calculation time using prismatic elements with those using tetrahedral elements. Findings It was found that the calculated current and torque, and eddy current loss using prismatic elements are almost the same as those using tetrahedral elements. The calculation time using...

...Slawomir Wiak; Lidija Petkovska; Paul Lefley; Goga Cvetkovski Purpose The paper presents design development of a novel high‐performance low‐cost 6/4 pole permanent magnet brushless DC (PMBLDC) motor. The objective is to show how the cogging torque of this new design is minimised by determining...

... is based on the magnetic gear which consists of a high‐ and low‐speed rotor, and a stator. Although this magnetic‐geared motor has a high‐torque density, problems with manufacturing and cost exist because multi‐pole permanent magnets are mounted on the high‐speed rotor and stator. Design/methodology...