Stator

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering and wind power, namely to wind power generators with vertical axis of rotation. Stator contains excitation sources, magnetic cores, work coil and bases with fasteners. The magnetic cores are made in form of top and bottom groups. Each group includes angle-bar which horizontal flange looks on the end gap of the rotor element, and vertical flange looks on first end of coil with permanent magnets. The second end of the coil with permanent magnets is connected with common vertical magnetic core.

EFFECT: efficiency improvement due to that not only radial by end gaps are also used.

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 F03D 9/00]. 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 by the fact that the stator 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 the area facing horizontal shelf to the end clearance of the rotor element, and the vertical shelf to the first end of the coil with the permanent magnets and the second end of the coil, the permanent magnet is connected with the total vertical magnetic circuit.

The invention is illustrated in the drawing, which shows a vertical section of a stator and a rotor on which the barn generator.

The stator 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 permanent magnet 11 with the working coil 12. The right end face of the permanent magnet 11 is mounted on a vertical magnetic circuit 13, to which is also attached below the permanent magnet 14 of the working of the excitation coil 15. Vertical shelf attached using a mounting area 16 to the base 1, and the left end face of the permanent magnet 14 is attached to the vertical shelf 17 of the lower area, which with its free side facing the bottom end of the gap 18. The rotary element 6 is attached to the rotor disc 20 with over 19. Between the rotary element 6 and the vertical magnetic core 13 is a radial gap 21.

After the stator is as follows. When the rotor is switched in each of the on the ear of magnetic circuits: upper and lower. For example, at the top of the chain: the rotary element 6 gap 7 - shelf 8 - vertical shelf 10 is a permanent magnet 11 is a vertical magnetic circuit 13 to the gap 21 is a rotary element 6; the lower chain: rotary element 6 - the gap 21 is a vertical magnetic circuit 13 is a permanent magnet 14 - regiment 17 - lower area - clearance 18 - rotary element 6. As a result, in the working coils 12 and 15 is induced electromotive force, which is then passed to the consumer.

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 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 the area facing horizontal shelf to the end clearance of the rotor element, and the vertical shelf to the first end of the coil with the permanent magnets and the second end of the coil, the permanent magnet is connected with the total vertical magnetic circuit.



 

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7 dwg

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