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.
The performance and life expectance of Permanent Magnet Synchronous Machines (PMSMs) is strongly affected by the PM temperature. An increase of the PM temperature reduces the PM strength and consequently the machine torque production capability. Also there is a risk of irreversible demagnetization if PM temperature is too high. Directly measurement of the PM temperature is not easy, PM temperature...
Variable flux PMSMs (VF-PMSMs) are gaining importance, especially in automotive applications. The use of such machines will require the development of methods to estimate the permanent magnet (PM) magnetization state. PM magnetization state estimation methods reported in literature include BEMF and high frequency signal injection. One advantage of high frequency signal injection methods is that they...
Permanent magnet (PM) magnetization state estimation is important for torque control/monitoring in conventional permanent magnet synchronous machine (PMSM), e.g. interior PMSM (IPMSM) and surface PMSM (SPMSM). Furthermore, this can be critical for variable flux machines (VFM) or spoke-type ferrite magnet motors (STFMM). PM magnetization state can change during normal operation of the machine, either...
Permanent-magnet (PM) magnetization state estimation in PM synchronous machines (PMSMs) is of great importance for torque control and monitoring purposes. The magnetization state of a PMSM can change due to several reasons, injection of stator current ( $d$-axis or $q$-axis) and variation of magnet temperature being the primary reasons. PM magnetization state estimation is not easy once the machine...
Permanent magnet (PM) magnetization state estimation in Permanent Magnet Synchronous Machines (PMSM) is of great importance for torque control and monitoring purposes. The magnetization state of a PMSM can change due to several reasons, injection of stator current (d or q-axis) and variation of magnet temperature being the primary reasons. PM magnetization state estimation is not easy once the machine...
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.