RU2267028C1 - Segment-make wind power generator - Google Patents

Abstract

FIELD: wind power engineering.

SUBSTANCE: proposed wind power generator has magnetic field source, operating coils, magnetic circuits and rotary elements - segments installed on wind wheels. According to invention, magnetic circuits are made in form of two E-shaped plates arranged in two parallel planes and in form of two L-shaped plates arranged square to E-shaped plates. Each L-shaped plate is secured to one of side posts of E-shaped plate.

EFFECT: improved service characteristics owing to use both of low velocity and high velocity winds.

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Description

The invention relates to the field of wind energy and can be used to generate electricity.

Known wind generator containing a tower with rotary wind wheels, a device for installing in the wind, as well as rotors and stator with windings [1].

The disadvantage of this device is the increased mass of the rotor, which to increase productivity must have a large number of cavities with rotor elements, which in the case of large-diameter wind wheels is practically unacceptable.

Closest to the claimed essential features is a wind generator [2], containing a tower with rotary wind wheels, a wind installation device, rotors and stators with windings, the rotors are made in the form of aerodynamic washers, and the wind wheels are connected by flexible elements, which allows for sequential operation of each from two wheels to one stator.

The disadvantage of this device is the ability to work with wind wheels of only one pair, which in the case of high-speed wheels leads to unjustified energy losses in low-potential winds, and in the case of low-speed wheels leads to their underutilization in strong winds, which generally reduces the operational characteristics of the device.

The technical result, which consists in increasing the operational characteristics through the use of two pairs of wind wheels - horizontal and vertical - is ensured by the fact that in a segmented wind generator containing a magnetic field source, working coils, magnetic circuits and rotor elements - segments - mounted on wind wheels, according to the invention, the magnetic cores are made in the form of two W-shaped plates located in two parallel planes, and in the form of two L-shaped plates, which are mescheny perpendicular W-shaped plates, each L-shaped plate is attached to one of the lateral uprights W-shaped plate.

The invention is illustrated by drawings, in which Fig. 1 shows a general front view of a wind generator, Fig. 2 is a top view, on a larger scale, the stator of a generator is shown in Fig. 3 is a side view, in Fig. 4 is a front view, in Fig. 5 is a top view, FIG. 6 is a rear view, FIG. 7 shows a separately W-shaped symmetrical plate of a magnetic circuit, and FIG. 8 shows an asymmetric L-shaped plate.

The segmented wind generator consists of a tower 1, wind wheels having a rim 2 with ferromagnetic rotor segment elements 3. Bicycle type wind wheels have spokes - blades 4, wind wheels connected by a flexible element 5 (for example, a chain or toothed belt), which covers pulleys 6, mounted on hub. In the center, between vertically mounted wind wheels and simultaneously between horizontally mounted wind wheels, a stator 7 is installed. A rotating base 8 is installed on the tower, and the flexible element is equipped with a tensioning device - a roller 9 with a spring-loaded lever 10. The rotating base is equipped with a tail 11, a transverse traverse 12, on the ends of which are mounted bearing units 13.

Consider the stator device. It is based on two U-shaped plates 14 located in two parallel planes A and B, two L-shaped plates 15, which are placed perpendicular to the planes A and B. In this case, a L-shaped plate is attached to each of the side racks of the Sh-shaped plate using bolts 16 passing through the holes 17 and 18. A central non-magnetic bolt 19, passed through the holes 20 and the central magnet 21, pulls together the entire structure, including the coil 22, worn on the magnet 21.

The operation of the device. Under the influence of the wind flow on the blades 4 of the wind wheel, and hence the rims 2 come into rotation. The rotor elements 3 alternately enter into magnetic interaction with the pole pieces, and in accordance with the principle of operation of the inductor generator, the magnetic flux of the field sources 2 — permanent magnets — made in the form of washers with holes for the central non-magnetic bolt 19, is switched.

The technical advantage of this wind generator is that, due to the design of the magnetic cores in the form of two spatially arranged W-shaped plates, it was possible to introduce into magnetic interaction not only a pair of horizontally mounted wind wheels, but also a pair of vertically mounted wind wheels, which, in turn, made it possible to almost double the performance of this generator compared to the prototype.

The use of this wind generator allows you to obtain stable performance characteristics, namely, that the generation of stress occurs in winds of any intensity, since four high-speed wheels operate on one load in turn, which leads to a decrease in the starting moment while maintaining all the main indicators.

Sources of information

1. RF patent 2184267 - Wind generator / A. M. Litvinenko, application No. 20010128442, from 13.11.2000, publ. 06/27/2002, Bull. Number 18.

2. RF patent 2211948 - Counter-rotor wind generator / A. M. Litvinenko, application No. 2001129415/06 of 10.31.2001, publ. 09.10.2003, Bull. Number 25.

Claims (1)

A segmented wind generator containing a magnetic field source, working coils, magnetic circuits and rotor elements — segments mounted on wind wheels, characterized in that the magnetic circuits are made in the form of two U-shaped plates located in two parallel planes, and in the form of two L-shaped plates, which are perpendicular to the U-shaped plates, each L-shaped plate attached to one of the side racks of the U-shaped plate.

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