SU578807A1 - Synchronous electric machinewith higher harmonic excitation - Google Patents

Description

one

The invention relates to the field of electrical engineering and can be used in brushless self-excited electric machines.

A synchronous electric machine with powering the excitation winding from the exciter through a rotating rectifier is known, the exciter being combined with the main machine 1. The disadvantage of this machine is the design complexity and, as a result, low reliability.

Also known is an electric machine with excitation from higher harmonics, containing a stator winding laid in open grooves, and a pole-type inductor, with excited winding, damper winding and the root winding of the exciter, laid in the slots of the pole of the inductor and the inductor. to the invention to the technical essence and the achieved result.

The purpose of the invention is nl o / gs mmsink; mass i and barbariton.

This goal is achieved by the fact that, under the slots for the exchange of the core winding, additional grooves are made, in which the damper winding is laid.

2

The drawing shows an electrical machine, but a cross-section.

The electric machine contains a stator winding 1, strung out in the open

grooves 2, poles 3 with field winding

4, in the pole tips 5 of which

laid the root winding vobddtel 6

H damper winding 7.

Electric machine works as follows.

At a certain fixed position of the stator relative to the inductor, the conductivity of the air gap along the pole 5 has a significant

component and harmonic range. The amplitude and composition of xhbc harmonics is determined by the geometry of the tooth zone of the stator and inductor. But the teeth of the inductor are closed. Then the perpendicular of the conduction of the first dentate harmonic is equal to the dentate pitch of the core. The action of the inductor relative to the stator is moved by a conduction wave of the muted ido.P1 n {). Pc) 11th tip .1.

Prn ich.chichpn choke and amoe of excitation I in the center of the pole tip 5 is moving the induction wave of the harmonic. In the case of automatic winding, 6 exciters with a number of pole pairs multiple of

to the generator stator grooves in phase

Claims (1)

Claim A synchronous electric machine with excitation from higher harmonics, containing a stator winding laid in open slots and an explicit pole inductor, equipped with an excitation winding, a damper coil and an anchor winding of the exciter laid in the grooves of the pole tips of the inductor, characterized in that, for the purpose of to reduce the weight and dimensions, under the grooves for placement of the anchor winding of the pathogen, additional grooves are made in which the damper winding is laid.