Rotor of segment wind-driven electric generator

FIELD: power engineering.

SUBSTANCE: rotor of a segment wind-driven electric generator comprises teeth, slots, a rim, spikes and a hub. Rotor teeth are made of a multi-strand cord laid between spikes at the inner side of the rim and forming slots behind the appropriate spikes. Ends of the cord are fixed with a coupling.

EFFECT: reduced mass and dimensions of a wind-driven electric generator rotor with minimisation of its cost due to simplified technology of manufacturing through usage of comparatively short sections of the cord, which are widely applied in lifting transport equipment and other industries.

3 dwg

 

The invention relates to the field of energy, in particular wind power mainly segmental type.

Known [RF Patent №2270363/A.m.litvinenko - Rotor wind power, publ. 20.02.2006, bull. No. 5, IPC F03D 9/00 (2006.01), application No. 2004128676/06, 27.09.2004.; RF patent №227530/A.m.litvinenko - Rotor segment wind power, publ. 27.04.2006, bull. No. 12, IPC F03D 9/00 (2006.01), application No. 2004128674/06, 27.09.2004.; RF patent №2290534/A.m.litvinenko - Rotor wind power, publ. 27.12.2006, bull. No. 36, IPC F03D 9/00 (2006.01), application No. 2005116803/06, 01.06.2005.] the rotors of wind power segment mainly of the type with the rim, spokes and hub. In the General case as spokes can act as propeller blades, and the rim can be worn various elements of the circuit type with alternating ferromagnetic and non-ferromagnetic parts, coils with ferromagnetic wire or prismatic elements whose type (ferromagnetic or non-ferromagnetic) alternates along the length of the chain.

Of all known analogues closest to the claimed combination of essential features for a rotor of a wind power [RF Patent №2358150/A.m.litvinenko - Rotor wind power, publ. 10.06.2009, bull. No. 16, IPC F03D 9/00 (2006.01), application No. 2007139348/06, 23.10.2007], which is part of microelectroporation installation and includes the United States is e between the plates, and one of the corners of the plates are made in the form of a wave.

The disadvantage of this rotor is low adaptability, due to the high number of connections for continuous operation of the wind turbine can be alleviated because need constant feeding.

The invention is directed to reducing the weight and size of the rotor of the wind power while minimizing its cost by simplifying the manufacturing technology.

This is achieved in that the rotor of wind power segment containing the teeth, grooves, rim, spokes and hub, according to the invention, provided with teeth made of stranded cable laid between the spokes on the inner side of the rim and forming grooves for the respective spokes at the ends of the rope fixed coupling.

The invention is illustrated by drawings, where figure 1 shows a General view of the rotor from the front, figure 2 shows the fastening of the cable ends with pressed clutch, figure 3 - view of the rotor top part of wind power.

The rotor segment wind power, mainly the segment type includes a rim 1, spokes 2, the hub 3, to which can be attached blades, steel stranded cable 4, which is placed between the spokes on the inner side of the rim and the ends of the fixed coupling shown in Fig. 2. The rotor is in the left segment of wind power and has a magnetic contact with the magnetic circuits 5, the magnetic flux in the circuit which is excited by permanent magnets 6, and the fluctuations of the magnetic flux induce in the coil 7, EDS. The turbine has a guiding device (tail) 8, which is shown in figure 3 partially rotating relative to the tower, the platform 9 to the consoles 10 and 11. On the platform 9 has a bearing, and the bearing shaft 12 of the hub 3. As teeth are the sections 13 of the cable 4 (inside rim). As the grooves are lots 14 located behind the respective spokes.

The operation of the device. In the presence of the wind flow, which exerts pressure on the blades, the rotor starts to rotate. Ferromagnetic sections of rope that are in the area of the magnetic circuit 5 (in fact, the rotor teeth), modulate the magnetic flux of the stator. The stators are mounted on brackets 10 and 11, which are attached to a movable (rotatable) platform 9, which also strengthened the bearing and the tail wind power. Stators, like all stators induction generators constitute a magnetic circuit, in which, in addition to the magnetic circuit, including a source of magnetic field is a permanent magnet or coil excitation, and the working coil which senses changes in flow caused by its modulation by the rotor. The induced voltage is then fed to the unit to regulate the deposits, and then, to the load. Rim with a wound inside him stranded cable type is in fact a toothed rotor laminated type, which modulates the magnetic flux and generates electricity, with parts shown in figure 2, provide a reliable fastening of the ends of the rope.

Technical and economic advantage of the rotor is that its use is unnecessary production of special items that are in one way or another role play the role of teeth, and the relative cheapness of the workpieces is relatively short lengths of cable, which are widely applied in hoisting machines and other industries. The presence of a large number of wires in the veins of the cable ensures a high resistance to the flow of eddy currents, because the grease lived acts as insulation, as this helps to reduce the losses in the rotor teeth, which increases the efficiency of the generator as a whole.

The rotor of wind power segment containing the teeth, grooves, rim, spokes and hub, characterized in that the teeth are made of stranded cable laid between the spokes on the inner side of the rim and forming grooves for the respective spokes at the ends of the rope fixed coupling.



 

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