RU94039814A - Contactless synchronous machine - Google Patents

Abstract

FIELD: electromechanical engineering; manufacturing of contactless synchronous generators. SUBSTANCE: machine has an armature winding and an excitation winding of an exciter. Both windings are placed on a stator. An excitation winding placed on a rotor is made at least from two electrically connected independent windings. Each of the independent windings has at least two parts connected to each other trough switching devices, such as diodes, allowing either series or parallel connection of these parts. Like terminals of the winding parts which are not connected with unlike terminals of the other winding parts are electrically connected to each other through a switching device. EFFECT: reduced loss in rotor and higher reliability of the machine because of possibility to use the entire excitation winding at any moment of rotation of rotor. 9 dwg

Claims (1)

The invention relates to electrical engineering and can be used in electrical engineering in the manufacture of contactless synchronous generators. A non-contact synchronous electric machine contains on the stator an anchor winding and an excitation winding of the pathogen, and on the rotor an excitation winding made of at least two independent windings interconnected electrically. A distinctive feature is that the independent field windings are made of at least two parts interconnected via switching devices, for example diodes, with the ability to switch to serial and parallel connection of these parts, while the same clamps of the parts of the windings through the switching device are interconnected electrically. Using the proposed non-contact synchronous electric machine allows you to use at any time the rotation of the rotor of the entire field winding, which can reduce losses in the rotor and increase the reliability of the electric machine.