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Fast Electro-Mechanical Performance Evaluation Tool for Synchronous Reluctance Machine
M. A. H. Rasid,Khadija Benkara,Vincent Lanfranchi 한국정밀공학회 2017 International Journal of Precision Engineering and Vol.18 No.11
The absence of high-cost rare-earth magnet on the rotor of Synchronous Reluctance machine makes it one of the best option for an actuator in applications with high ambient temperature. Combined with an optimized rotor structure, it can deliver good performance. In the early design phase of the machine, development cost reduction of prototyping and testing can be obtained by having a fast electro-mechanical model that can evaluate the machine’s essential performance: operating envelope, power factor and efficiency. Therefore this study proposes a fast analytical tool that evaluates the electro-mechanical performance of a given Syncrel machine. Experimental evaluations done on a prototype machine has proven the validity and robustness of the tool. The resulting tool is ready to be used for fast electro-mechanical performance evaluation of any Syncrel machine topology with any power supply and control variations.
M. A. H. Rasid,Vincent Lanfranchi,Alejandro Ospina,Khadija El Kadri Benkara 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.5
Synchronous reluctance machine (SynRM) is reemerging as a thermally robust and inexpensive actuator solution mainly due to the lack of permanent magnet. Added to that, the possibilities of having diff erent rotor topologies make it very versatile where further optimization is possible depending on the objective, be it cost, ease of fabrication, power output, or torque quality. In an application where the outer dimension of the motor is strictly limited, this paper compares quantitatively and qualitatively the torque ripple of three SynRM machines of the same stator dimension equipped with diff erent rotor topologies: segmented, tooth and fl ux barrier. Using an experimentally validated FE model, the torque ripple and the ripple’s harmonic content are compared at maximum load (stator current, I S = 50 A) and load angle ( β = π/ 4). The machine adopting the fl ux-barrier rotor was shown to have the best torque quality (41% ripple), followed by tooth rotor (78% ripple) and fi nally segmented rotor (105% ripple). The harmonic contents are also presented and analyzed