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 novel three-phase rotary transformer is an attractive solution to replace the brushes and slip rings of doubly fed induction generators. The interaction of magnetic field produced by primary windings and rotating secondary ones makes it difficult to establish the dynamic mathematical model of the transformer. This paper presents the design procedure and finite element analyses of the novel three-phase...
This paper presents a steady performance analysis of an isolated three-phase self-excited induction generator which employs a three-phase winding in series connection with two capacitors and supplies for single-phase load. Performance analysis is derived by the method of symmetrical components, from which the input impedance of the generator can be determined. The voltage unbalance factor is computed...
This paper presents the design and analysis of a novel three-phase rotary transformer that can be used to replace the brushes and slip rings of doubly fed induction generators. The transformer core is designed for easy assembly and to ensure a relatively constant reluctance while the secondary of the transformer is rotating. Guidelines for the air-gap size, stator and rotor core shape, and excitation...
This paper presents the design and analysis of a novel three-phase rotary transformer that can be used to replace the brushes and slip rings of the doubly fed induction generators (DFIG). Design aspects of the transformer cores are investigated to ensure easy manufacturing and a relatively constant reluctance while the secondary of the transformer is rotating. Guidelines for the air-gap, stator and...
A novel single-phase permanent magnet synchronous motor (PMSM) which employs three winding in series connection with two capacitors is presented. This paper describes the design of the novel PMSM based on the parameters of the three-phase PMSM with same output power. Performance equations are derived using the method of symmetrical components and equivalent circuit for this motor is proposed to predict...
Because of the increasing pressure for improved the efficiency single-phase motor, a novel single-phase induction motor with three winding in series and two capacitors has been provided to be capable of high efficiency demand. This paper introduces the basic structure and operational principle of the new type motor. A voltage source driving complex finite element model for the novel high efficiency...
Because of the negative-sequence magnetic field, the single-phase induction motor has higher temperature, lower output torque and lower efficiency comparing with three-phase induction motor. Based on negative-sequence magnetic field compensation principle, this paper presents a new type single-phase motor with a special stator windings configuration to weaken the negative sequence magnetic field and...
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.