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This paper presents a performance comparison of feedback linearization and field oriented control for a synchronous reluctance machine. In order to represent realistic drive performance and dynamics, look-up tables of the machine inductances as a function of currents are used to include saturation effect. Additionally, a trained neural network was implemented to take the nonlinear behavior of the...
This paper is focused on the electromagnetic and structural design of high-speed synchronous reluctance (HS-SyR) machines. Both design aspects are equally taken into account due to high speed requirements. Two design procedures, both based on multi-objectives stochastic optimization algorithms (OA) and Finite Element Analysis (FEA), are presented and compared in terms of computational time and quality...
The paper describes a systematic method for optimally designing with multiple objectives and differential evolution algorithms, current regulated electronically controlled synchronous reluctance machines. A large scale study with thousands of designs calculated with a ultra-fast computationally efficient electromagnetic FEA establishes the performance limitations of conventional radially laminated...
The most common practice when designing high speed synchronous reluctance (SyR) machine consists in performing the electromagnetic design followed by a finite element rotor structural verification at the maximum operating speed. This approach could lead to sub-optimal designs because it neglects the effect of the rotor structural parts on the electromagnetic performance and vice versa. In order to...
The synchronous reluctance machine (SynRM) can be considered as a viable alternative to permanent-magnet synchronous machines and induction machines. The absence of permanent magnets or excitation windings are advantages. Additionally, higher efficiencies respectively torque densities are possible compared to induction machines. Lower power factors (typically less than 0.7–0.8) and therefore larger...
The relationship between the well known competitive torque density and less competitive power factor of reluctance synchronous machines is investigated. The study consists of a multi-objective design optimisation implementing a weighted factor optimisation technique. The investigation was carried out by implementing a complete machine model in the optimisation, with varying machine pole number and...
This paper deals with the design of synchronous reluctance machine of the transverse-laminated type. Rotor design has been made for two different rotor geometries based on general design recommendations. These geometries are studied and compared by using 2D finite element analysis. The geometries are developed by optimization algorithms after that. The optimized parameters are torque ripple and average...
The subject of this article is to optimize the design and compare the performances of synchronous reluctance machines with salient pole rotor and multi-flux barrier rotor. The optimization procedure, which focuses on the maximization of the machine's torque to Ampere ratio, is based on a cyclic algorithm coupled with the magnetostatic finite-element field solutions. The optimization results regarding...
This paper provides a performance optimization of synchronous reluctance motors (SynRM) up to 130 kW using a non linear reluctance network modeling and a sequential quadratic programming (SQP) minimization technique. The non linear reluctance network approach allows to take into account the saturation and is significantly faster than the finite element method. 3000rpm-2pole machines with either a...
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