A5038401571- Electric Motor Design and Analysis
- Magnetic Properties and Applications
- Magnetic Bearings and Levitation Dynamics
- Multilevel Inverters and Converters
- Advanced DC-DC Converters
- Metal and Thin Film Mechanics
- Engineering Diagnostics and Reliability
- Non-Destructive Testing Techniques
- Electric Power Systems and Control
- Reliability and Maintenance Optimization
Université Libre de Bruxelles
2020-2022
Brose Fahrzeugteile (Germany)
2020
Sharif University of Technology
2016
In the presented paper, an analytical model is developed for calculation of air gap magnetic flux density in axial‐flux surface‐mounted PM machines. The slotting effect taken into account distribution, accurately. main novelty this study replacing stator teeth by some surface currents at border removed teeth. uniqueness theorem applied to find currents. two‐dimensional (2D) field solution slotless machine solved easily separation variables method. multi‐slice quasi‐3D method taking 3D nature...
The effect of electrical steel degradation due to punching on the performance fractional-kW machines in terms torque and iron losses is investigated. local considered BH curve model by continuous variation magnetic proprieties as a function distance from cut edges. newly introduced parameters are identified fitting proposed relations for with measured values obtained via standard Epstein frame test. position-dependent incorporated into magnetostatic FE equations. Then, two different...
There are applications like electric-power-assisted steering system in which strict requirements on the cogging torque of machine should be fulfilled. Numerous techniques and methods introduced to minimize inherent machine, but manufacturing tolerances imperfections still can cause extra torque. In this article, impact punching manufacturing-induced segmented permanent-magnet synchronous machines is investigated. The model implemented by modifying BH curve steel as a function distance from...
A method for BH curve identification of the magnetic core synchronous reluctance machines is presented. It starts from knowledge machine torque or phase voltages measured at normal operation with ac balanced currents obtained dedicated experiments proposed identification. The formulated as an inverse optimization problem where experimental data based on appropriate serve inputs and parameters represented a closed-form expression variables. influence different types measurements identified...
The performance of a fractional-slot concentrated-winding PMSM with two different winding diagrams, namely, single and dual star, is investigated. Firstly, the air-gap flux density for these cases in terms rotating fields studied, which provides insight into essential difference between windings. Then, computationally efficient model taking account saturation spatial effects using FE-obtained look-up tables developed. Using model, control offline design controllers are carried out based on...
The performance of synchronous reluctance machines (SynRMs), including torque density, power factor and efficiency, strongly depend on rotor saliency. However, two common uncertainty factors, namely manufacturing tolerance the flux-bridge width BH-curve, may considerably affect In this paper, a comprehensive sensitivity analysis based 2D FEA, regarding these factors is carried out, considering in particular SynRM prototype machine 6kW with 3000rpm rated speed. results show that influence...
In this paper the iron losses of dual-star permanent-magnet synchronous machines under fault-tolerant control with phase open-circuit fault are investigated. Various faults including one or two open-circuits in different phases considered. The loss terms, namely hysteresis, eddy-current, anomalous, and rotational losses, considering harmonics calculated based on a priori knowledge magnetic field distribution obtained by magnetostatic FE simulations. A variety motor topologies laminated-core...