Single-phase generator with annular armature winding

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering and design of electrical machines, particularly single-phase alternating current generators. The technical result achieved by using the present invention is considerably high efficiency and improved electromechanical properties of single-phase generators. Said technical result is achieved due to that in a single-phase synchronous generator with an annular armature winding, consisting of an armature and an inductor, separated by an air gap, according to the invention the armature consists of two series-connected annular windings with semi-annular ferromagnetic cores, the nearest rectangular ends of which are attached by nonmagnetic bushings, and the inductor consists of a central cylindrical core mounted on a rotating shaft, wherein on diametrically opposite surfaces of the core there are two rod-shaped permanent magnets with concave like poles. During operation of the generator, turns of the annular windings are penetrated by induction field lines of one direction, originating from like poles of the permanent magnets of the inductor.

EFFECT: structure of the armature enables to direct magnetic field lines thereof around a circle and considerably reduces not only active, but inductive resistance armature windings as well.

2 dwg

 

The invention relates to the field of electrical machines, particularly to machines of alternating current.

The closest analogue is proposed single-phase synchronous generator with excitation from permanent magnets.

Called the generator along with the known advantages and has some drawbacks. It has a relatively low efficiency and poor adjustability of the speed of the rotor in the motor mode. This is primarily due to the fact that it inductor during the rotation induced in the coils armature winding currents such directions that the back of its magnetic poles on the armature will always be the electromagnetic poles of the opposite polarities of the first, and in front of them - like poles. Furthermore, his anchor windings sufficiently large resistance and inductive reactance.

The technical result of the claimed invention - a significant increase efficiency, improve its Electromechanical characteristics.

The technical result is achieved by the fact that the armature winding in the proposed design of the generator ring instead of the commonly used loop, and a ferromagnetic core is divided into two half and has two sides with non-magnetic gaps between them. In addition, their coils prorezyvajutsja during power lines - induction one direction emanating from the same pole Kee is different magnets of the inductor. This design of the anchor allows you to direct its magnetic lines of force around the circle, not the diameter, as it usually occurs in analogue with a loop windings and with a closed magnetic circuit. It can significantly reduce not only active, but also inductive reactance of the windings his anchor.

The proposed single-phase generator with an annular anchor winding, made in the form of a single-phase synchronous generator, consisting of the armature and inductor separated by an air gap, characterized in that the anchor consists of two connected in series ring windings with semicircular ferromagnetic cores, the next rectangular ends are glued nonmagnetic inserts, and the inductor consists of placed on the shaft of rotation of the Central cylindrical magnetic core, and at the opposite surfaces of which has two rod-like permanent magnets with the same concave poles.

Figure 1 and 2 show respectively transverse and longitudinal sections of the proposed generator.

Figures 1 and 2 the following notation: 1 - conductor of electric current, 2 - non-magnetic gap, 3 - open magnetic anchors, 4 - ring armature windings 5 - permanent bar magnet with convex and concave poles of the inductor 6 is a Central magnetic core Indus is Chora, 7 - electrical output of the generator.

Single-phase generator with an annular anchor winding operates as follows. When rotating with the external engine inductor generator starts to rotate, for example, clockwise. In this case, the turns of the winding 4 of the armature induced EMF of the same sign. But on the electrical output 7 will be supported for a certain AC voltage. This is due to the fact that every time the magnetic poles of the permanent magnets 5 of the inductor are non-magnetic gap 2 of the armature core, alternating magnetization, which causes the windings 4 of the armature EMF another sign. This induction variables currents flowing through the coils of the winding 4 of the anchor part is subjected to application of its ferromagnetic core 3 so that the magnetic lines of force will always be directed in a circle through the non-magnetic gap 2, which will be the electromagnetic poles of both polarities. In this case, around the circle during the entire cycle of rotation of the inductor will not be a separate magnetic poles, preventing movement of the latter, as it usually happens in the case of loop windings.

The proposed generator can operate in motor mode. If you send from a special source or from a fixed header on the electrical output 7 of the alternating voltage of the same sign with the frequency duhks the things rotational speed of the rotor, then every time the pole of the permanent magnet 5 will be in the field windings 4 anchors, in his coils will always leak currents in the same direction. This leads to the electromagnetic interaction with the permanent magnet 5 of the rotor, which starts to rotate, the direction of which is determined by the left-hand rule. At the same time ferromagnetic cores 3 of the stator will not be satisfied currents from the network in one direction. This is achieved by the fact that for each passage of the permanent magnet 5 of the rotor area of a non-magnetic gap 2 they will paramagnetically.

Sources of information

1. Bertino A.I. and other Homopolar electric machine with liquid metal current collectors. - M.-L.: Energy, 1966.

2. Bertino A.I. Special electrical machines. - M.: Energy, 1982.

3. Booth, D.A. Contactless electrical machines. - M.: high school, 1990.

4. Herod I.A. Electromagnetism. - M.: Binom, 2003.

5. Kalashnikov YEAR Electricity. - M.: Nauka, 1985.

Single-phase generator with an annular anchor winding, made in the form of a single-phase synchronous generator, consisting of the armature and inductor separated by an air gap, characterized in that the anchor consists of two connected in series ring windings with semicircular ferromagnetic cores, the next rectangular ends of which prickle who are non-magnetic inserts, and the inductor consists of placed on the shaft of rotation of the Central cylindrical magnetic core, and at the opposite surfaces of which has two rod-like permanent magnets with the same concave poles.



 

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