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.
Permanent magnet (PM) of the high speed permanent magnet machine has to be protected to resist the huge centrifugal force. One of the mature protective measure is to retain the PM with the nonmagnetic alloy sleeve. However, the rotor eddy-current losses would increase meantime. Decreasing the sleeve thickness would reduce the eddy-current losses of the machine but decrease the mechanical strength...
This paper presents an integrated optimization process to minimize cogging torque in permanent-magnet (PM) machines by a simple Gradient Descent method. The presented optimization method can be easily achieved in machine design. The design techniques of nonuniformly distributed magnets and teeth are presented to illustrate the optimization process. First, with the assistance of an analytical model...
The switched reluctance motor (SRM) has a very simple structure and a wide speed range. Its speed performance and the system stability are very excellent. But it involves complex electromagnetic interaction and parts of its magnetic path could be deeply saturated. As a result, the nonlinear magnetization characteristic of the switched reluctance motor is difficult to accurately simulate. This article...
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.