The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, skewing effect is analyzed in permanent magnet Brushless Direct Current motor (BLDC). Skewing is a common used method especially for reducing cogging torque. Test motor is an interior type BLDC motor with 24 slots and 4 poles. In this work, Test BLDC motor is analyzed for different skewing angles (2.5, 5, ...,15 degrees) at stator to find an optimum skew angle for reducing the cogging...
Uneven distribution of permanent magnets (PM) is an effective way to minimize the cogging torques of PM motors. In this paper a novel and efficient finite element method (FEM) is proposed to calculate the cogging torque of PM motors when the PM distribution is uneven. With the proposed algorithm, the computing time required to solving the cogging torque problem is significantly reduced to only 0.06%...
This paper presents effect of magnet arrangement on torque characteristics of a magnetic flux concentration type surface magnet motor. Some constructions of the permanent magnet array were tried to reduce the cogging torque. Their magnetic flux distributions and torque characteristics were calculated by using the finite element method.
Cogging torque results from the interaction of the rotor magnets acting on the stator teeth or poles independent of any current. It is desirable to reduce the cogging torque since it may cause speed ripple and vibration, particularly at light load and low speed. When the motor equipped ring magnet, it is very effective to reduce the cogging torque as changing only the magnetization patterns of the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.