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 order to reduce cogging torque of permanent magnet (PM) motor, the lower harmonics of cogging torque should be reduced. It is found that if the slot number per pole is not an integer, new lower harmonics of cogging torque may be introduced when the method of asymmetry magnet is adopted. To reduce cogging torque, both the lower original and newly introduced harmonics of cogging torque should be...
In this paper, being based on Fourier expansion and energy method, the analytical expression of cogging torque of permanent magnet(PM) motor is derived, which can be used to analyze the effects of design parameters on cogging torque. Then a new method for reducing cogging torque by adopting isodiametric magnetic pole is proposed. Finite element analysis is used to calculate the cogging torque and...
The dispersibility of permanent magnetic materials of mass production cannot be avoided, which can affect the performance of line-start permanent magnet synchronous motor(PMSM). The effect of dispersibility of permanent magnet on the starting performance, no load performance and rated performance is studied in this paper. The dispersibility of PM has great effect on the minimum torque in starting...
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.