Generator stator

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering and wind power, namely to wind power generators with vertical axis of rotation. In the suggested generator stator containing the excitation sources, magnetic cores, work coil and bases with fasteners; according to the invention the magnetic cores are made in form of top and bottom groups, each group includes three angle-bars, their flanges are connected with cores in series via the coils, at that the first angle-bar horizontal flange looks on end of the rotor element, the second angle-bar is installed in zone of the external angle of the rotor element, and third angle-bar is installed with vertical flange in zone of radial gap.

EFFECT: decreasing of the magnetic resistance and assurance of not only radial but end gap also, resulting in length of the used gap and thus increasing the generator efficiency.

1 dwg

 

The invention relates to the field of wind energy, namely wind power with a vertical axis of rotation.

Known stators of the wind power segment type [RF Patent №2204734/ A. M. Litvinenko. The stator wind power./ Publ. Bull. No. 14, 20.05.2003, application No. 2001129417/06 from 30.10.2001, MKU F 03D9/00]. The stator contains the first rotor wheel with a rotary elements mounted on the ends of the blades. The stator coil is made in the form of the first cylindrical section and a second cylindrical section which is convex to each other and are connected by straight sections. The areas covered by the magnetic circuit with magnetic fields. In this magnetic circuit, located on the site facing to the rotary elements, and the magnetic covering the area, are located with the possibility of magnetic contact with the rotary elements of the second propeller. The cores are connected by magnetic fields.

The disadvantage of this stator are the large dimensions of the coil and, consequently, greater consumption of copper.

Of all known analogues closest to the claimed combination of essential features is the stator wind power [RF Patent №2253042/ A. M. Litvinenko. - Wind Power/ Publ. Bull. No. 15, 27.05.2005, application No. 2003130050/06 from 09.10.2003] CE is the elemental type, which contains the magnetic circuit, the excitation sources, the fastening elements, a base and a working coil, according to the invention, the stator is made in the form of two pairs of U-shaped magnetic circuits, the upper pair of which are oriented ridges down between adjacent racks installed the excitation system, the lower pair is oriented jumpers up and covered by the coil, which is located between adjacent racks.

The disadvantage of this invention is the presence of only the radial clearance, which reduces the efficiency of the design.

The invention is aimed at providing not only radial, but and face clearances, which increases the length of the gap, reduces the magnetic resistance.

This is achieved in that the stator of the generator containing the excitation sources, the magnetic operating coil and base with mounting elements according to the invention, the magnetic circuit is made in the form of upper and lower groups, each group includes three corner shelves which are connected in series through the coils with cores, and the first area facing horizontal shelf to the end face of the rotary element, the second area is set in the area of the external angle of the rotary element, and the third area has a vertical shelf in the area of the radial gap.

The invention illustrates what I'm drawing, which shows a vertical section of the stator and rotor at half the generator.

The stator of the generator consists of a base 1 in the form of a ring, in the middle part of which is installed thrust bearing 2, which is the lower support of the vertical shaft 3 of the rotor, in which the upper part has a bearing 4 mounted at the top of the base 5. The rotor with the rotor elements 6 (rectangular plates, the role of teeth). In the area of the end face of the rotor element, namely about the end of the gap 7, installed shelf 8 of the first area, which is facing the end face of the rotor element. This regiment through the spacer 9 is attached to the upper base. Consistently with vertical shelf 10 of the first area is connected to the core 11 and a coil 12. Thus, the right end of the core 11 is connected with the second area 13, which is installed in the area of the external angle of the rotary element. To the horizontal shelf of the second area 13 sequentially attached to the core 14 with the coil 15 and the third area 16, the vertical shelf is installed in the zone 17 of the radial air gap. The lower group of magnetic circuits arranged in the same way. The group through a spacer 18 and a bolt 19 is connected with the base 1.

The operation of the stator of the generator is as follows. When the rotor is switching in magnetic circuit: the rotary element 6 - end clearance 7 - is the OLK 8 - vertical shelf 10 - core 11 - area 13 - core 14 - area 16 - gap 17 of the rotary element 6. As a result, the working coil is induced electromotive force that will cause the voltage on the coil 15 will be connected to the excitation voltage.

Technical and economic advantage of the stator is its high efficiency, which is due to the fact that are not only radial, but the end clearance.

The stator of the generator containing the excitation sources, the magnetic circuits, the working coil and the base with fasteners, characterized in that the magnetic circuit is made in the form of upper and lower groups, each group includes three corner shelves which are connected in series through the coils with cores, and the first area facing horizontal shelf to the end face of the rotary element, the second area is set in the area of the external angle of the rotary element, and the third area has a vertical shelf in the area of the radial gap.



 

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