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 an Organic Rankine Cycle (ORC) systems, the Permanent Magnet (PM) generator is directly coupled to high-speed turbine shaft, in order to increase system efficiency avoiding introduction of gear-box. On the other hand, current time harmonics induce high frequency currents in rotor parts, which cause a temperature increase. PMs are strongly affected by the operating temperature, since both remanence...
This paper deals with the design guidelines of a high-speed Permanent Magnet (PM) generator used in an Organic Rankine Cycle (ORC) system. In such an application, in addition to electromagnetic analysis, particular care has to be given to specific issues such as: the design of the cover sheet, which influences both magnetic and mechanical performance; computation of friction losses in the air gap,...
A synchronous reluctance machine is investigated as a promising solution for integrated starter/alternator applications. For this application the electric machine should exhibit a high torque during the engine start-up and a wide constant-power speed range during electric energy generation. Peculiarities of the synchronous reluctance machine are the possibility of a large torque overload at low speed,...
In this paper an outer rotor Interior Permanent Magnet generator for automotive applications is presented. The rotor geometry has been optimized by means of a Multi-Objective algorithm. The aim is to maximize the output power of the generator and to minimize the permanent magnet volume. In any case, the machine has to yield the largest constant power region after the base speed, so as the generator...
This paper compares different solutions in micro wind-power system design. An economic analysis is carried out on the basis of the selected generator, power converter, and mechanical system. An interior permanent-magnet (PM) (IPM) generator is considered since it can be driven in the flux weakening region, exploiting higher turbine rotation speeds, without increasing proportionally the terminal voltage...
This paper presents some comparisons of different design choices in micro wind power systems design. An economic analysis is carried out on the basis of generator, power converter and mechanical system costs. An Interior Permanent Magnet (IPM) motor is considered since it can be driven in the flux weakening region, exploiting higher turbine rotation speeds. Several cases are considered, by imposing...
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.