RU19437U1 - SYNCHRONOUS GENERATOR - Google Patents

Description

Pathogen synchronous generator

The utility model relates to the field of electrical engineering and relates to the features of the implementation of brushless pathogens of reversed design for synchronous generators.

A brushless pathogen is known (M.I.Pospelov, Designs of Aviation Electric Machines, Moscow, Energoizdat, 1982, pp. 74-75), in which a stator with windings creating a constant magnetic field is mounted on the housing. A rotor with an anchor winding is placed in the stator bore, which is mounted on the rotating shaft of the generator rotor and is located in the center of the stator coaxially with it. A rotating rectifier unit is placed on a ring mounted on a shaft.

The design of such a rotor is complicated because of the need for a solid fastening of the windings to counter the centrifugal forces that arise during operation of the generator. The manufacture of the anchor is complicated due to the fact that there is only limited space for winding the anchor.

Closest to the claimed utility model is the brushless pathogen selected by us as a prototype (US Patent JSf 4900959) of the “reversed type, which includes a coaxially placed stator, rotor and rotating rectifier unit. A centering disk is installed at the end of the rotor shaft of the generator; on the side of the disk opposite the generator, a rotor is fixed, made in the form of a cylinder covering the stator of the pathogen. On the inner surface of the cylinder there is an anchor core with

MPK7N02K 11/00

winding. Inside the rotor, between the disk and the armature, a rectifier unit fixed to the rotor is placed.

This design does not provide free access to the rectifier unit during its assembly and repair. Placing the rectifier unit inside the rotor increases the length of the cantilever part of the rotor.

The technical result of the claimed utility model is to increase the manufacturability of the manufacture of the pathogen,. its maintainability and increased reliability.

The technical result is achieved due to the fact that in the exciter of the synchronous generator, including a coaxial stator, a centering disk mounted on the generator shaft with a rotor and an extension unit mounted on it for converting the output alternating current generated in the armature of the armature, connected by buses to the terminals of the generator rotor winding and exciter armature winding, moreover, a stator with a winding for creating a constant magnetic field is located inside the rotorgz and the rotor is placed on its inner surface The surface of the core of the armature with windings is fixed cantilever on the side of the centering disk opposite the generator, covers the stator and is rotatable relative to the stator, the rectifier block is mounted on the centering disk on the side of the generator and connected to the terminals of the windings of the rotor of the generator through the holes in the disk with winding of the anchor of the pathogen.

To increase the reliability of the design in the above-described exciter of the synchronous generator, the rectifier unit can be installed in the annular vyshchis disk from the side of the generator.

In FIG. shows one of the possible versions of the inventive brushless pathogen synchronous generator, where

1-end of the shaft of the synchronous generator,

2-centering disc

3-high-strength cylindrical housing,

4-core anchors,

5-armature winding,

6-pole magnetic system with winding,

7-core with a hole for the passage of cooling air,

8-post magnetic system mounting,

9-rectifier unit,

10-bus connection of the anchor to the rectifier unit,

11-1Ш1НИ connection of the winding of the rotor of the generator with the rectifier block.

At the end of the generator shaft 1, a centering disk 2 is mounted, to which the rotor housing 3 is mounted, made, for example, in the form of a high-strength cylinder, inside of which the core of the armature 4 with the winding 5 is pressed in. The stator with the poles and windings 6 located on it is mounted on a fixed magnetic circuit 7 and rack 8. The rectifier unit 9 is mounted on the annular protrusion of the centering disk 2 from the generator side and is connected by the tires 11 to the generator rotor winding and by the tires 10 passing through holes in the disk with the winding i.

The above embodiment of the design is illustrative and not the only possible, because the stator can be made implicitly, lined magnetic circuit.

Due to the location of the rectifier unit on the centering disk from the generator side, the inventive pathogen design has the following advantages as a pathogen according to US patent No. 4900959:

- significantly reduced the length of the cantilever part of the pathogen rotor, which is extremely important to increase its reliability and simplify the ventilation system,

-increased manufacturability of the assembly and maintainability of the pathogen, because free access to the rectifier unit is provided.

The authors are not aware of other designs of reverse-type pathogens in which the rectifier block is mounted on the centering disk from the generator side, i.e. outside the rotor cavity.

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Claims (2)

1. The exciter of a synchronous generator, including a coaxial stator, a centering disk mounted on the generator shaft with an anchor and a rectifier unit mounted on it to convert the output alternating current generated in the armature of the armature, connected by busbars to the terminals of the generator rotor winding and with the exciter armature winding, a stator with a winding for creating a constant magnetic field is located inside the rotor, and the rotor with the armature core with windings located on its inner surface is fixed The stator is rotatable on the side of the centering disk opposite to the generator and rotatable relative to the stator, characterized in that the rectifier block is mounted on the centering disk from the generator side and connected to the generator rotor winding leads by the busbars and through the holes in the disk with the winding pathogen anchors. 2. The causative agent of the synchronous generator according to claim 1, characterized in that the rectifier unit is installed in the annular protrusion of the disk from the side of the generator.