Wind-power electric generator

FIELD: wind-power engineering; generation of electric power.

SUBSTANCE: proposed wind-power electric generator has tower with swivel cross-member and wind wheel, wind setting unit, rotors and stators with windings; rotors are made in form of aerodynamic washers having shape of concavo-concave disks secured on ends of blades and stator is provided with pole pieces whose ends are magnetically connected with rotors which are magnetically connected with additional stators; blades are provided with additional rotors magnetically connected with additional stators; additional rotors are electrically interconnected.

EFFECT: reduction of starting torque.

2 dwg

 

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

Known wind power, containing a tower with a rotating propeller, a device installed on the wind, as well as rotors and stators with windings [1].

The disadvantage of this device is the increased weight of the rotor, which in fact has a diameter equal to the diameter of the propeller, in the case of large windwheels practically unacceptable.

The closest in technical essence is wind power, containing a tower with rotating propeller mounted on the traverse, the device is installed on the wind, the rotors and stators with windings, wherein the rotor is in the form of drag washers, representing a biconcave discs attached to the ends of the blades, and the stator includes pole pieces, the ends are magnetically associated with the rotor [2].

The disadvantage of this device is a great starting point that impairs the use of wind power in the winds of low efficiency.

The technical result consists in the possibility of reducing the starting torque, is ensured by the fact that wind power, containing a tower with swivel head plate with a wind turbine, the device is installed on the wind, the rotor and Tatary with windings, the rotors are made in the form of drag washers, representing a biconcave discs attached to the ends of the blades, and the stator includes pole pieces, the ends are magnetically associated with the rotor magnetically associated with additional stators, according to the invention the blades are provided with an additional rotor magnetically associated with additional stators, additional rotors are electrically connected.

The invention is illustrated by drawings, where figure 1 Dan wind power with more rotors and stators (front view), figure 2 shows more rotors and stators in an enlarged scale.

Wind power has a lower stator 1 with the pole pieces and the coil 2, the lower rotor 3 with the coil 4, the source of the magnetic field excitation 5 upper rotor (for example, a permanent magnet, with poles 6, the upper rotor 7 and a coil 8.

Generator mounted on the tower 9 and provided with blades 10 blades reinforced conductors 11 with rectifier 12, connecting the upper rotor 7 and the lower rotor 3, and more precisely coil 4 and coil 8. Blades mounted on the hub, which rotates in the bearing 13, which, in turn, is mounted on a shaft 14 mounted on the swivel base 15 (traverse tube), on the side 16 of which it is the stators 6 and 1, is on the upper part of which strengthened the device installed on the wind 17 - the tail plane.

The generator works as follows. During the rotation of the blades in the coils 8 of the rotor induced EMF under the action of the field magnet 5, which, after rectification, is fed to the coil 4 of the second rotor, which plays the role of the excitation circuit of the main stator 1, the coil 2 which is induced primary EMF, the triggering voltage of the generator, which then is transferred to the load.

The advantage of this generator is the circuit podozrenia stator 6 and rotor 7, which reduces the weight and dimensions of the main rotor 3, and reduces the starting torque, since in the initial period of promotion due to the relatively low peripheral speed, the voltage level of the excitation coil 4 is small compared with the nominal one.

Providing this capability extends the functional characteristics of wind power, increases energy efficiency.

Sources of information

1. GB 2233715 And MCL F 03 D 9/00, 16.01.1991.

2. RF patent 2184267 / A.m.litvinenko, on the application number 2000128442 from 13.11.2000, publ. 27.11.2002. Bull. No. 18.

Wind power, containing a tower with swivel head plate with a wind turbine, the device is installed on the wind, the rotors and stators with windings, rotors, made in the form of drag washers, representing a biconcave discs attached to the ends of the blades and the stator contains the floor is red tips, the ends are magnetically associated with the rotor magnetically associated with additional stators, wherein the blades are provided with an additional rotor magnetically associated with additional stators, additional rotors are electrically connected.



 

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