SABİT MIKNATISLI SENKRON MOTORUN MOMENT DALGALANMALARININ SONLU ELEMANLAR YÖNTEMİ İLE OLUŞTURULAN AKI MODELİNİN KULLANILMASIYLA AZALTILMASI / TORQUE RIPPLE MINIMIZATION OF PERMANENT MAGNET SYNCHRONOUS MOTOR WITH USE OF FLUX MODEL COMPOSED OF FINITE ELEMENT METHOD

Surekli miknatisli senkron motorlar, stator oluklarindaki degisken manyetik reluktans, stator halkalanma akilarindaki bozulmalar ve inverter beslemeden kaynaklanan nedenlerden dolayi moment dalgalanmalari olusturur. Bu moment dalgalanmalari hizda osilasyonlara neden olur. Bu makalede Sonlu elemanlar Yontemi ile Surekli Miknatisli Senkron Motorun aki analizi yapilmis ve bulunan sonuclar moment dalgalanmalarinin azaltilmasi icin alan yonlendirmeli kontrolde kullanilmistir. Onerilen yontemin gecerliligi Matlab Simulik programi ile ispatlanmistir. Permanent magnet synchronous motor generate torque pulsations owing to variable magnetic reluctance at the stator slots, distortion of the stator flux linkage distribution, and reasons to based on inverter. This torque pulsations cause speed oscillations. In this paper, flux analysis of permanent magnet synchronous motor with finite element method was made, and the findings were used in field oriented control for to decrease torque pulsations. The validity of proposed method was demonstrate by using Matlab Simulink program.