In this paper, the design optimization of a nonsalient high-speed permanent magnet synchronous machine (PMSM) for electric vehicle applications is presented. It will be shown how, with new approach, it possible to find deterministic solution solve sizing from given driving cycle. The optimal geometry and control strategy over cycle minimizing both energy losses volume calculated. At first, one-dimensional analytical model used presented validated most significant point using finite element...

In this paper, a design methodology for surface permanent magnet (PM) synchronous machines, with special application to the case of high-speed will be presented. Following discussion principle and assumptions inherent in methodology, analytical model used study This then implemented solve problem maximizing power-to-volume ratio from an perspective. It shown how formulation serves establish rules, addition setting criteria values selection magnetic materials (i.e., silicon steel sheet versus...

In this paper, we investigate the eddy current losses in permanent magnets of surface mounted magnet synchronous machines. An original analytical method based on magnetodynamic problem a conductive ring is introduced and obtained results are compared with ones given by 3-D FEM analysis. The model considers effect width loss. axial considered through correction coefficient. comparison includes induced density, instantaneous losses, impact circumferential segmentation, frequency losses. By...

This paper develops a novel method for optimal design of fractional slot with concentrated windings. The basis this is generalized analytical model the winding magnetomotive force (MMF) combined multiobjective genetic algorithm, which searches parameters that maximize factor and minimize MMF harmonic content. technique applied to optimize layout permanent magnet synchronous machine 12 × n slots/10 poles combination ( an integer number). electromagnetic performances optimized are investigated...

In this paper, a novel methodology is presented in order to design permanent magnet synchronous machine associated with gearbox for screwdriver application. The study shows how, from specification such as maximum volume, heating, torque, and speed profiles, it possible formulate the sizing problem. modeling based on purely analytical formulation. We will show that establish rules make optimal choices of materials (magnets stator core). optimization pole pair number choice gear ratio also be...

Cette note de synthèse met en lumière, variant les approches (démographiques, juridiques, politiques, sociologiques), diverses facettes la problématique du logement à Bruxelles. Elle ne constitue pas un état des savoirs exhaustif sur l’habitat, mais offre panorama connaissances et enjeux actuels. évidence différentes dimensions dans le contexte croissance démographique fragmentation sociale, révèle controverses débats son sujet pointe principaux pour futur.

The extended Kalman filter (EKF), one of the most popular state estimators for nonlinear uncertain dynamic systems, is considered here in its continuous-discrete (CD) form. CD version enhances EKF's accuracy but requires robust and computationally efficient numerical integration methods. purpose this article to present several new methods suited implementation CD-EKF compare them classical implementations such as Dormand–Prince 4/5 Euler They are first applied on two proposed parameter...

In order to fully utilize the control degrees of freedom a multi-three-phase-star smooth-pole permanent magnet synchronous motor (PMSM), this paper first develops modeling approach using new matrix transformation method. The proposed produces decoupled and independent star windings, removing inductive couplings preserving model torque control’s consistency as number phases increases. model, together with vector scheme, is superior for studying effect winding phase angle shift on performance....

This synopsis highlights the various facets of housing problem in Brussels through different approaches (demographic, legal, political and sociological). It does not constitute an exhaustive state knowledge regarding housing, but presents a panorama current challenges. dimensions context demographic growth social fragmentation, reveals controversies debates on this subject points out main challenges for future.

In this article, a design methodology applied to the case of high speed permanent magnet machines for electric vehicles is presented. The small power urban use discussed. After presentation analytical model used, it will be shown that, from driving cycle, possible formulate analytically solution that maximizes density machine. Some rules presented in order optimize magnetic materials, frequency conversion and gear ratio.

In this paper, an analytical method is presented in the aim of minimizing simutanously volume and energy losses high-speed Permanent Magnet Synchronous Machine (PMSM) for electrical vehicle application. The performance optimal designed machine validated at all working points driving cycle by means original reluctance network model. A case study carried out UDDS urban vehicle.

Deze synthesenota verduidelijkt de verschillende aspecten van huidige huisvestingsproblematiek in Brussel vanuit invalshoeken (demografisch, juridisch, politiek en sociologisch). De nota verstrekt geen exhaustieve stand zaken kennis over woonomgeving, maar biedt een overzicht actuele uitdagingen. licht dimensies toe context demografische groei sociale fragmentering, brengt controverses debatten dat vraagstuk aan het stipt grootste uitdagingen voor toekomst aan.

An invited expert for the Council Housing in Brussels Region (CCL) and member of Board Governors Walloon Region, he is director IRIB.He has just published "Les mutations du logement en

This paper deals with the design of five-phase permanent magnet synchronous machines (PMSMs) exploiting third harmonic for torque generation. Through optimization stator size and rotor structure, objective functions related to mass electric losses are minimized a targeted electromagnetic power (10 kW 400 rpm) given volume. The study takes into account saturation, thermal, electrical mechanical constraints. On that note, 1D analytical magnetic model, considering existence use harmonic, is...

This paper deals with electromagnetic and thermal analytic modeling the aim of a global optimization surface mounted permanent magnet machines for high speed applications. The electromagnetic, core loss used models were validated by experimental tests. Using stochastic evolutionary algorithm based on particle swarm (PSO), mechanical, geometrical constraints are taken into account. study particularly focuses influence magnetic materials optimum value pole pair number i.e conversion frequency.

In this paper a novel method of determining optimal stator winding layouts for the permanent magnet with fractional slot concentrated machines is presented. This based on multiobject if genetic algorithm coupled to an analytical model MMF produced by windings aims reduce harmonic content while maintaining good factor working harmonic. The advantage such approach that new degrees freedom (irregular distribution, non-uniform distribution number turns) likely improve waveform are taken into...

Permanent magnet machines with fractional slot concentrated windings are very attractive for low-speed direct-drive applications due to their compactness, cost effectiveness, and high efficiency. However, one of the key challenges using winding configurations is content space harmonics in air-gap magnetomotive force distribution, which can lead undesirable effects such as rotor losses, vibrations, noise. In this article, phase shifting technique investigated deal harmonic windings. An...

This paper is dedicated to the optimization of driving strategy a high efficiency fuel cell based power train. train developed equip an urban-concept vehicle that runs energetic races where objectives are go furthest with lowest quantity (Shell Eco Marathon). Through comprehensive dynamical model, including mechanical requirement, thermal behavior stack and various losses consumption devices. model then integrated into global algorithm, determine best race be adopted (velocity profile, motor...

In the field of marine renewable energies, extraction currents by use tidal current turbines has led to many studies. contrast offshore wind turbines, mass minimization is not necessarily most important criterion. that case, Direct-Drive Electrically Excited Synchronous Generators (EESG) can be an interesting solution in a context where permanent magnet market more and stressed. particular case turbine, electric generator operates at variable torque speed all time. Its sizing must therefore...

Wat is de impact van aanwezigheid Europese instellingen op vastgoedmarkt Brussel en rand? Op deze vraag rust misschien geen taboe, maar het antwoord in ieder geval niet eenvoudig. Wie Unie een te directe invloed woningprijzen toeschrijft, loopt gevaar populisme worden verweten (alsook onverschilligheid voor wat hoofdstad betekent). daarentegen enig verband ontkent, krijgt schrijnend gebrek aan realiteitszin aangewreven. De gevolgen zijn weliswaar beperkt tot bepaald gebied segment gebouwen....

This paper presents a new method to optimize, from working cycle defined by torque and speed profiles, both the design control strategy of permanent magnet synchronous generators (PMSGs). The case 10 MW direct-drive generator for an Offshore wind turbine was chosen illustrate this method, which is based on d–q axis equivalent circuit model. It allows with reduced computation time, design, considering either flux weakening (FW) or maximum per Ampere (MTPA) strategy, while respecting all...