کلیدزنی بهینه در مبدل شش‌فاز ماشین سنکرون آهنربای دائم به‌منظور کاهش اعوجاج هارمونیکی جریان با استفاده از روش کنترل پیش‌بین جریان اصلاح‌شده
محورهای موضوعی : مهندسی برق و کامپیوتر
پیمان میرزایی پور
1
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سیدقدرت اله سیف السادات
2
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محسن صنیعی
3
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سید سعیدالله مرتضوی
4
1 - گروه پژوهشي برق، دانشکده مهندسی، دانشگاه شهید چمران اهواز، ایران
2 - گروه پژوهشی برق، دانشکده مهندسی، دانشگاه شهید چمران اهواز، اهواز، ایران
3 - گروه پژوهشي برق، دانشکده مهندسی، دانشگاه شهید چمران اهواز، ایران
4 - گروه پژوهشی برق، دانشکده مهندسی، دانشگاه شهید چمران اهواز، اهواز، ایران
کلید واژه: ماشین‌های سنکرون مغناطیس دائم (PMSM) شش‌فاز, کنترل پیش‌بین جریان (PCC) اصلاح‌شده, بردارهای ولتاژ مجازی, کلیدزنی بهینه, مینیمم‌سازی تابع هزینه.,
چکیده مقاله :
این مقاله یک روش کنترل پیش‌بین جریان (PCC) اصلاح‌شده مبتنی بر بردارهای ولتاژ مجازی (VV-PCC) بهینه با کنترل و تنظیم همزمان دو زیرفضا در مبدل شش‌فاز را برای ماشین‌های سنکرون مغناطیس دائم (PMSM) پیشنهاد می‌کند. این روش منجر به به حداقل‌نمودن اعوجاج هارمونیکی جریان در مقایسه با دیگر روش‌ها می‌شود. علاوه بر این، امکان کنترل عملکرد PMSM شش‌فاز با یک جریان نامتعادل بین دو مجموعه از سیم‌پیچ‌ها نیز فراهم می‌شود. نهایتاً روش PCC با زیرفضای دوگانه (BS-PCC) مبتنی بر بردارهای مجازی با دامنه بهینه اتخاذ می‌شود که با انتخاب الگوی كلیدزنی مناسب می‌تواند هم میزان هارمونیک‌های ناخواسته را کاهش دهد و هم پاسخ دینامیکی سریع و پاسخ گشتاوری قابل قبولی را ارائه نماید. همچنین از آنجا که انتخاب حالت‌ها در PCC می‌تواند منجر به جریان‌های چرخشی هارمونیکی در سیم‌پیچ‌های ماشین شود، این مشکل را می‌توان با روش پیشنهادی با حداقل‌سازی ضریب وزنی رفع کرد که به تعداد تکرارهای کمی در کلیدزنی مبدل شش‌فاز نیاز دارد. اعتبارسنجی مقاله با استفاده از نرم‌افزار Matlab بر روی یک ماشین نمونه انجام شده است.
This paper proposes a modified predictive current control (PCC) method based on optimal virtual voltage vectors (VV-PCC) with simultaneous control and regulation of two subspaces in a six-phase converter for permanent magnet synchronous machines (PMSM). This method leads to minimizing harmonic distortion of the current compared to other methods. In addition, it is possible to control the operation of a six-phase PMSM with an unbalanced current between two sets of windings. Finally, the dual subspace PCC method (BS-PCC) based on virtual vectors with optimal amplitude is adopted, which, by selecting an appropriate switching pattern, can both reduce the amount of unwanted harmonics and provide fast dynamic response and acceptable torque response. Also, since the selection of modes in the PCC can lead to harmonic Circulating current in the machine windings; This problem can be solved by the proposed method by minimizing the weighting factor, which requires a small number of iterations in switching the six-phase converter. The validation of the article was carried out using MATLAB software on a prototype machine.
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