بهينه‌سازي هندسه استاتور ماشين‌هاي با آهن‌رباي سطحي با هدف كاهش گشتاور دندانه
محورهای موضوعی : مهندسی برق و کامپیوترمحمدرضا عليزاده پهلواني 1 * , وحید زمانی فرادنبه 2
1 - دانشگاه مالک اشتر
2 - دانشگاه شهركرد
کلید واژه: شيار مجازي زوج دندانه‌ها گشتاور دندانه مورب‌كردن شيار استاتور,
چکیده مقاله :
در اين مقاله يك روش تحليلي براي موتورهاي آهن‌ربای سطحي شياردار ارائه شده و از اين مدل براي بررسي و بهينه‌سازي روش‌هاي كاهش گشتاور دندانه مبتني بر تغييرات در هندسه استاتور استفاده شده است. مدل ارائه‌شده توانايي در نظر گرفتن اثر شيارهاي استاتور در اعوجاج مؤلفه‌هاي چگالي شار فاصله هوايي را دارد. روش‌هاي ايجاد شيار مجازي، زوج‌کردن دندانه‌ها و مورب‌كردن شيار استاتور به منظور بهينه‌سازي هندسه استاتور مورد مطالعه و بررسي قرار گرفته‌اند. براي به دست آوردن پارامترهاي بهينه استاتور در هر يك از روش‌ها از الگوريتم جستجوی مستقيم استفاده شده است. براي محاسبه گشتاور دندانه از رابطه تنسور ماکسول استفاده گردیده، در هر روش نتايج به دست آمده از روش تحليلي با روش المان محدود تائيد شده و در نهايت مقايسه‌اي بين روش‌هاي ارائه‌شده انجام شده است.
We present an analytical method for the calculation of cogging torque in surface permanent-magnet (PM) motors. The cogging torque is calculated by integrating the Maxwell stress tensor inside the air gap. The stator design techniques are applied to reduce the cogging torque in SPM motors. The used techniques are stator dummy slots, teeth pairing and stator slot skewing. The direct search method is used to find the optimum geometry in the mentioned methods. Finally, the validity of the proposed model and the obtained results are verified with Finite Element Analysis.
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