Title :
Cogging torque reduction methods
Author :
Kudrjavtsev, Oleg ; Kilk, Aleksander
Author_Institution :
Dept. of Fundamentals of Electr. Eng. & Electr. Machines, Tallinn Univ. of Technol., Tallinn, Estonia
Abstract :
This paper considers the study of methods for reduction of the cogging torque in permanent magnet machines. Cogging torque has been analyzed to be reduced by slot skewing, width of slot opening, magnet pole radius and also by mounting of the magnets. Electromagnetic simulations of the PM generator were performed by using finite element analysis. Virtual torque method has been used for calculation of the cogging torque.
Keywords :
finite element analysis; mountings; permanent magnet generators; PM generator; cogging torque reduction; electromagnetic simulations; finite element analysis; magnet mounting; magnet pole radius; permanent magnet machines; slot opening; slot skewing; Forging; Generators; Magnetic flux; Rotors; Stator windings; Torque; Permanent magnet synchronous generator; cogging torque; finite element; magnet shape; mounting of the magnet; pole width to pole pitch ration; slot opening; slot skewing;
Conference_Titel :
Electric Power Quality and Supply Reliability Conference (PQ), 2014
Conference_Location :
Rakvere
Print_ISBN :
978-1-4799-5020-1
DOI :
10.1109/PQ.2014.6866822
