An improved analytical model of eccentric synchronous reluctance machines considering the iron saturation and slotting effect

Mahmoud, Hanafy

doi:10.1109/icelmach.2016.7732513

Cited by 3 publications

(1 citation statement)

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“…In general, it has been shown that slightly improved performances can be achieved at the cost of a more complex design (increased number of rotor parameters) of the barrier profiles Thus if a FE-based design assisted by OA is chosen, then the computational burden increases [21]. On the other hand, if an analytical design followed by a FE refinement stage is carried out, the FE stage will be greatly complicated and lengthened even if the most accurate analytical model is implemented [23], [24]. In fact, the latter always require a set of assumptions such as the simplification of the rotor geometry and neglecting the iron non-linearity (also in terms of local saturations).…”

Section: B Rotor Parametrizationmentioning

confidence: 99%

Design Optimization of a High-Speed Synchronous Reluctance Machine

Nardo

Calzo

Galea

et al. 2018

IEEE Trans. on Ind. Applicat.

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Abstract-Synchronous reluctance machines, including the permanent magnet assisted variants are competitive motor topologies if the application requires high efficiency and a cost effective solution with a high flux weakening capability. However, increasing operating speeds incur challenging design and development decisions, mainly in order to find design solutions that ensure the machines structural integrity without compromising the overall performance. In this paper, a comprehensive design procedure for high speed synchronous reluctance machines is presented. In order to validate the procedure, a 5 kW, 80000 rpm machine is considered. The proposed strategy consists of a two-step procedure in which the electromagnetic and structural designs have been properly decoupled dividing the design space in two subsets. Each subset mainly affects the electromagnetic or the structural performances. Several structural design optimizations have been then performed with the aim of finding the optimal trade-off between the rotor geometrical complexity (that defines the required computational resources) and the electromagnetic performance. The reported experimental tests of the prototyped machine validate the proposed design strategy which can be used as general guidelines on the structural design of synchronous reluctance machines.

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Section: B Rotor Parametrizationmentioning

confidence: 99%