Minimizing cogging torque in permanent magnet synchronous generators for small wind turbine applications

Name: Minimizing cogging torque in permanent magnet synchronous generators for small wind turbine applications
Author: El Sayed, Ahmad, Ertürk, E.

İsim	Minimizing cogging torque in permanent magnet synchronous generators for small wind turbine applications
Yazar	El Sayed, Ahmad, Ertürk, E.
Basım Tarihi:	2021-06
Basım Yeri	- Gazi University
Konu	Cogging torque reduction, Finite element analysis, Optimization, Permanent magnet synchronous generator
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1309-0127
Kayıt Numarası	7652b17c-57af-4442-b96a-1a9ca04bf574
Tarih	2021-06
Örnek Metin	Permanent magnet synchronous generators have a wide usage among electric machines, especially in small wind turbine systems. However permanent magnet synchronous generators suffer from cogging torque due to the magnetic interaction between the poles of the rotor’s permanent magnets and the steel laminations of the stator’s teeth. The cogging torque drawback is a major problem in this kind of generators that affects its functionality negatively. In the literature many different approaches for reducing the cogging torque are proposed and each different approach achieves different amount of reduction in the cogging torque. In this study 6 different cogging torque reduction techniques are considered and with finite element simulations using the JMAG simulation software, they are compared with each other in terms of percent reduction in the cogging torque. Present simulations show that among the considered different approaches, continuous skewing technique reduces the cogging torque the most with respect to the each other techniques considered. Also using the step skewing of the rotor or stator, changing the slot opening width and having dummy slots techniques can decrease the cogging torque more or less the same amount in magnitude. Present results indicate that changing the radial shoe depth technique has almost no effect in reducing the cogging torque.
Cilt	11

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Minimizing cogging torque in permanent magnet synchronous generators for small wind turbine applications

Yazar El Sayed, Ahmad, Ertürk, E.

Basım Tarihi 2021-06

Basım Yeri - Gazi University

Konu Cogging torque reduction, Finite element analysis, Optimization, Permanent magnet synchronous generator

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1309-0127

Kayıt Numarası 7652b17c-57af-4442-b96a-1a9ca04bf574

Tarih 2021-06

Örnek Metin Permanent magnet synchronous generators have a wide usage among electric machines, especially in small wind turbine systems. However permanent magnet synchronous generators suffer from cogging torque due to the magnetic interaction between the poles of the rotor’s permanent magnets and the steel laminations of the stator’s teeth. The cogging torque drawback is a major problem in this kind of generators that affects its functionality negatively. In the literature many different approaches for reducing the cogging torque are proposed and each different approach achieves different amount of reduction in the cogging torque. In this study 6 different cogging torque reduction techniques are considered and with finite element simulations using the JMAG simulation software, they are compared with each other in terms of percent reduction in the cogging torque. Present simulations show that among the considered different approaches, continuous skewing technique reduces the cogging torque the most with respect to the each other techniques considered. Also using the step skewing of the rotor or stator, changing the slot opening width and having dummy slots techniques can decrease the cogging torque more or less the same amount in magnitude. Present results indicate that changing the radial shoe depth technique has almost no effect in reducing the cogging torque.

Cilt 11