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.
This paper deals with the design of the rotor of synchronous reluctance machines, characterized by a multi flux-barrier structure. In particular, the focus will be on the proper design of flux-barriers geometry. An analytical model is adopted to compute the impact of the rotor flux-barriers on the torque, focusing on the torque ripple. Thanks to proper assumptions, the analytical model is simplified...
Multi-phase slotless permanent magnet synchronous motors (PMSMs) are cogging torque-free motors with fault tolerant capability developed for high speed applications such as aerospace and marine. Slotless PMSMs can offer a higher torque density when they have a trapezoidal back EMF and supplied with nonsinusoidal current. In this paper, a five-phase slotless PMSM with an external rotor is designed...
A powerful simulation method, coupled analysis between finite element analysis (FEA) and circuit simulation, has been proposed. Such coupled analysis can take into account not only the spatial harmonics of the motor but also pulse width modulation and control logic effects including voltage saturation. Several comparisons between experimental and FEA results including torque ripple are shown. These...
This paper presents a novel method in which eddy current losses in a solid rotor direct torque controlled synchronous machine are found by utilizing a combination of analytical and FEM (finite element method) simulations. The method is presented along with the results obtained. The article also briefly presents a new method in which 3D (three dimensional) current flows can be modelled using a 2D (two...
This paper presents the improvement of dynamic characteristics in interior permanent magnet (IPM) type BLDC motor with notch. The notch is applied on the surface of the rotor to reduce the cogging torque and to improve dynamic characteristics. The current, inductance and torque of initial model and optimal model are analyzed by FEA. The validity of improved dynamic characteristics is confirmed.
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.