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.
Synchronous reluctance machines are very appealing for high speed traction applications due to their robustness, simple structure, absence of magnets, and simple control. The absence of magnets means that synchronous reluctance machines are not susceptible to price variability and sustainability of rare-earth materials. Also, there are no concerns about demagnetization or uncontrolled generation mode...
Synchronous reluctance machines are very appealing for high speed traction motor design due to their robustness, simple structure, absence of magnets, and simple control. The absence of magnets means that synchronous reluctance machines are not susceptible to price variability and sustainability of rare-earth materials. Also, there are no concerns about demagnetization or uncontrolled generation mode...
Electrical machine standards were dominated by the manufacturers until API 541 RP was created in 1972. Up until the mid 1960's, manufacturers constantly re-designed the electrical parts of the machine without user assistance. Critical motors servicing large pipeline pumps were specified with little or no features. All electrical connection points were mounted inside the enclosure and all key mounting...
Electric drive systems, which include electric machines and power electronics, are a key enabling technology for advanced vehicle propulsion systems that reduce the petroleum dependence of the ground transportation sector. To have significant effect, electric drive technologies must be economical in terms of cost, weight, and size while meeting performance and reliability expectations. This paper...
The paper presents design and technological aspects of high speed electrical machines including the radial and axial mechanical stress due to centrifugal forces. It presents a reversed structure with outside rotor and inside stator, with high rotational speed, 20.000 rpm -24.000 rpm, with 1kW power, witch serves as centrifugal fan. This unconventional type of machine is now, still in the phase of...
This paper investigates the acceleration of convergence to a steady state in a transient analysis of rotating machines using the time-periodic explicit error correction (TP-EEC) method. The efficient method to deal with the movement of the rotor and different time-periodicity in the fixed and moving parts of the mesh is developed. Numerical results verify the effectiveness of the developed method.
Off and on-line diagnostic methods have been employed for many decades on the rotor, core and stator winding insulation systems of high voltage rotating machines. A number of the more effective, industry-accepted techniques are briefly described. Experience with their use is described in a number of case studies.
This paper presents the results of an investigation of torque development in the air gap of a 6/4 and 8/6 switched reluctance machines (SRM). Due to the force components acting on the rotor enables us to provide more accurate picture of the torque generation and vibration in this family of electric machines. The analysis for the torque is computed by finite element method. The torque optimisation...
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.