TY - JOUR ID - 21545 TI - A dual-stator machine with diametrically magnetized PM: Analytical air-gap flux calculation, efficiency optimization, and comparison with conventional dual-stator machines JO - Scientia Iranica JA - SCI LA - en SN - 1026-3098 AU - Asgari, Sh. AU - Yazdanpanah, R. AU - Mirsalim, M. AD - Laboratory of Electrical Machines and Transformers Research, Department of Electrical Engineering, Amirkabir University of Technology, Tehran, P.O. Box 1591634311, Iran AD - Department of Electrical Engineering, University of Larestan, Lar, Iran Y1 - 2022 PY - 2022 VL - 29 IS - 1 SP - 208 EP - 216 KW - analytical design KW - dual-stator KW - Finite Element Method KW - optimization KW - PM machine KW - torque DO - 10.24200/sci.2019.53316.3181 N2 - This paper presents a design and optimization procedure for a dual-stator machine with a diametrically magnetized PM to improve the electromagnetic performance. First, analytical design equations are presented based on MEC analysis; they are used to design a basic dual-stator machine. Then, by applying an artificial intelligence algorithm, the machine is optimized to achieve high efficiency and torque density, and low pulsating torque for direct-drive applications. A quantitative comparison is performed between the optimized new machine and conventional dual-stator machines to evaluate the performances and improvements of the understudy machine. The machine performance, including air-gap flux density distribution, back electromotive force, electromagnetic torque, cogging torque, and torque ripple are analyzed by the finite element method. The analysis results have demonstrated that benefiting from its topology, the optimized dual-stator machine with diametrically magnetized PM has the comprehensively better performance, including higher torque density, higher efficiency, and lower torque ripple and cogging torque compared to conventional dual-stator machines. UR - https://scientiairanica.sharif.edu/article_21545.html L1 - https://scientiairanica.sharif.edu/article_21545_d910ee779bb82aace83a254c42fc14a3.pdf ER -