Electric generator for wind-driven plant |
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IPC classes for russian patent Electric generator for wind-driven plant (RU 2423773):
       
 Torque transmission assembly for superconducting rotating machines / 2418352
Proposed rotor assembly includes superconducting winding assembly located in cryogenic zone of rotor assembly. The above rotor assembly includes torque transmission assembly which according to this invention includes the first and the second pipes which are located with a radial gap outside the assembly of superconducting winding and which pass along longitudinal axis of rotor assembly. Besides, superconducting rotating machine containing such torque transmission assembly is proposed.
 Electric motor with multilayered rhomb-shaped windings / 2359387
Present invention relates to electrical engineering, particularly to electric motors, with windings with an air core, and can be used in rotors of dc motors, as well as in stators of electronic-commuted (EC) motors. The electric motor contains a winding with an air core, made from several separate windings, made from conductors. The separate windings are superimposed on each other and have such a shape that there is shifting in the region of at least two opposite corners. According to the first version of the invention, half the sides of the separate windings is in an inner hollow cylinder, and the other half is in an outer hollow cylinder without overlapping the inner hollow cylinder. According to the second version, half of the sides of separate windings is in a first plane, and the other in a second plane, without overlapping the first plane. The overlapping separate windings together form a flat winding, which comprises a first plane and a second plane. The separate windings are provided with an extra amount of conductor material as allowance in the shifting region, which forms preferably a U-shaped or loop-shaped bulge on the inner contour of the separate windings.
 Electrical machine / 2400006
Electrical machine comprises stator with winding, inner rotor with output shaft installed in bearings, intermediate rotor covering inner rotor, on inner surface of intermediate rotor there are windings arranged, shaft of intermediate rotor is arranged as hollow, inside there is inner rotor shaft, besides bearings arranged on shafts of inner and intermediate rotors are arranged coaxially to their axis of rotation. On outer surface of intermediate rotor there are groups of permanent magnets arranged with alternating polarity, and generator winding of stator is multi-phased.
 Asynchronous motor with hollow rotor with outside excitation / 2396672
Asynchronous motor with hollow short-circuit rotor includes hollow rotor and external stator with core and winding, as well as additional rotor installed on the shaft in the zone restricted with stator with possibility of rotation irrespective of hollow rotor, made from ring-shaped magnet radially magnetised with the number of pairs of poles, which is equal to the number of pairs of poles of stator winding, on which there pressed is thin-wall sleeve from conducting material, and hollow rotor is made in the form of thin-wall shell from conducting material.
 Electrical machine / 2396671
In electrical machine containing the device for creation of magnetic field and device for conversion of one kind of energy to the other, according to the invention, in device for creation of magnetic field (stator) the slots formed with magnetic conductor, which are through in axial direction, are also through in radial direction, and above external part of open slots which are through in radial direction there installed is external rotor enveloping the external part of stator (magnetic field creation device). Thus, electrical machine has inner rotor with which the main magnetic flow interacts, and outer rotor with which leakage flux interacts.
 Eccentroid electric machine and method of its application / 2394338
Proposed eccentroid electric machine comprises (dwg. 1-2) body (1) arranged with internal ring in the form of elliptic bearing race (2) from dielectric material, stator made in the form of three inertial elements (3), every of which is assembled from plates of electrotechnical steel, comprises axis (4) of rotation, is arranged in the form of rolls equipped with magnetic belts (5) at the ends, which consist of even number of semirings of various polarity. Axis (4) of rotation of each of inertial elements (3) is connected by two telescopic spring links (6) to dampers (7), installed symmetrically on both sides of rotor system, including propeller blades (8), on driving shaft (9) common for stator and rotor, which is arranged eccentrically relative to geometric axis of eccentroid electric machine. Body (1) is closed with two covers (10) at sides, on which at inner sides there are elliptic angle guide elements (11) installed to form together with elliptic bearing race (2) elliptic closed channel for movement of inertial elements (3) in it. Telescopic spring links are arranged relative to each other at the angle of 120°. Rotor system of eccentroid electric machine (dwg. 3-7) consists of two rotors: rotor (12) of free rotation and rotor (13) of forced rotation, rigidly arranged on driving shaft (9). Rotor (12) of free rotation comprises hollow shaft (14) arranged on sliding bearings (15) concentrically relative to both driving shaft and rotor (13) of forced rotation. Inside hollow shaft (14) of ferromagnetic material there is a system arranged from even number of permanent magnets (16) with alternating poles, and outside their rims (17) - magnetic belts (18) made also of even number of permanent magnets. Magnetic belts (5) and (18) of stator and rotor (12) of free rotation are arranged oppositely, and permanent magnets (16) have length comparable to length of rotor (13). Each of dampers (7) comprises hollow cylindrical perforated ring (21), rigidly fixed on driving shaft (9) and divided with internal radial partitions (23), between which compensation springs (24) are installed with thrust. Ends of telescopic spring links (6) arranged in dampers are arranged with hubs (22) rigidly installed on driving shaft (9), are installed in middle part of compensation springs and come out of dampers through holes in their cylindrical rings.
 Non-contact synchronous machine having smooth anchor with slotless active zone and constant magnets on rotor / 2374743
Invention can be used for electric drives, for example in electric propulsion systems of sea vessels, submarines, in traction drives of ground electrically propelled vehicles, hoisting devices, drives of pumps, fans, electric tools, etc., at increased requirements for level of torque pulsations, vibrations, noises and with the possibility of supplying power to motors from typical bridge converters which are batch-produced.
 Electric machine / 2360352
Invention relates to electric engineering, particularly to electric machines and may be used for converting electric energy. The electric machine construction as disclosed by the invention includes stator magnet core to create magnetic field directing magnetic flows into coils (squirrel wheels) of both rotors. One type of energy is converted into another while both rotors of electric machine rotate. One rotor is installed inside stator generating magnetic field and interacts with its inner part. The other rotor covers the outer part of stator and interacts with it.
 Stepping motor / 2358373
Invention relates to the field of electrical engineering and is to find wide application in robotic engineering and automation systems intended for indexing regulation. The stepping motor 1 contains a stator 2 with teeth 3 and 4, positioned on the stator inner and outer bores, and slots 5 and 6, positioned between them. The slots 5 and 6 contain the winding 7 phase coils. The rotor consists of an electrically conductive part 8 and a magnetically conductive part 9 mounted onto the shaft 10. The rotor electrically conductive part has a diametrical groove 11 arranged all along the rotor active length and filled with an insulation material. On the stator outer bore teeth 4 there are rollers 12 mounted the additional rotor electrically conductive part 13 relies on that is represented by a cylinder with a diametrical groove 14 arranged all along the additional rotor active length and filled with an insulation material. On top of the electrically conductive part 13 the additional rotor magnetically conductive part 15 is mounted. To the voltage source there are five phase winding coil connected to form an arc-shaped assembly; the sequential orders of phases before and after the assembly middle are mutually reverse. To commence rotor stepping one disconnects the last coil of the assembly. To discontinue stepping one simultaneously disconnects the first coil of the assembly and connects the phase coil that follows the last coil of the original assembly.
 Step motor / 2357349
Present invention pertains to electrical engineering and can be used in robotics and automation systems for regulating stepped movement. The step motor 1 has a stator 2 with teeth 3 and 4, located on the inner and outer stator bores, and slots 5 and 6, located between them. Phase windings 7 and 8 are wound around teeth 3 and 4. The rotor has an electrically conductive part 9 and a magnetically conductive part 10, on a shaft 11. The electrically conductive part has a diametric opening 12, located on the whole active length of the rotor and filled with an insulating substance. On tooth 4 on the outer stator bore there are rollers 13, on which rests the electrically conductive part 14 of an extra rotor, made in form of a cylinder and with a diametric opening 15, lying on the whole active length of the extra rotor and filled with an insulating substance. Above the electrically conductive part 14, there is magnetically conductive part 16 of the extra rotor. The voltage source is connected to five phase windings of each coil, forming an arc-shaped row, before the middle of which there is one, and after the middle there is an opposite order of phases. For the first step of the rotors, the last phase winding of the corresponding row is disconnected. To end the step, the first phase winding of the corresponding row is disconnected at the same time as the phase winding, following the last phase winding of the first row, is connected.
Asynchronous machine / 2349015
Invention relates to electrical engineering and may be used in other engineering branches, for example wind-power engineering. The main point of the invention is the use of specific common rotor in asynchronous machine with two stators and common rotor. The above-mentioned common rotor rotates freely with regard to the shaft and at the same time has two separate short-circuited windings for each stator and one common short-circuited winding for both stators. One stator is fixed to the shaft, while the other rotates together with it. The windings of the fixed stator and the stator rotating together with shaft are made up from windings of two or more unequal sections of the above stators. In addition, the minor sector of the fixed stator winding and the minor winding sector of the stator rotating together with the shaft are connected to the mains. The same connection is ensured for large sectors or next by the size sections of the fixed stator or stator rotating together with stator shaft.
 Birotating power generator / 2329377
Birotating power generator contains, at least, one attachment point, an external rotor with a birotating hydraulic turbine and excitation magnets, a stator with an excitation winding installed thereon and an electrical connector. The birotating power generator is characterised by that the magneto-permeable division walls are hermetically sealed by an inner chamber of the stator and an external rotor. Driven magnets of two face clutches are set on both sides of division walls. Upper middle rotor with the driven magnets and an inner shaft are concentrically installed on bearings made inside the external rotor. Leading magnets of face magnetic clutches are installed in front of magneto-permeable division walls inside the inner chamber of the external rotor. Driven magnets of face magnetic clutches are installed in front of magneto-permeable division walls inside the inner chamber of the stator. In this case, driven magnets of internal face magnetic clutch are placed on lower internal shaft, driven magnets of external magnetic clutch are placed on lower middle shaft and excitation magnets are placed on lower internal shaft.
 Wind-driven power generator / 2422673
Wind-driven power generator includes rotor with vertical rotation axis, which is arranged inside fixed case of wind guide plates 1. Rotor is formed with blades 4 attached to carrying cylinder 3 so that slot diffuser 5 is formed between them and carrying cylinder 3. Each of blades 4 is equipped on front side of its plane with the main vortexes which are made with protrusions 7 of Δ- or I-shape, which are longitudinal and made in the form of blades 4 perpendicular to the plane. On rear side of each blade 4, on its vertical edge which is the closest to carrying cylinder 3, there is additional vortex in the form of longitudinal thickening 8 having Δ-shape in its cross section. Side edge of longitudinal thickenings 8, which faces carrying cylinder 3, is convex. Blades 4 can be both solid and hollow, including filled with polymer foam filler. Available protrusions 7 improve formation of vortexes on front side of blades 4, and available longitudinal thickenings 8 increase the volume of vortex area after rear side of blades 4 and accelerate their airflow passing through slot diffuser 5.
 Rotor-type windmill / 2413870
Proposed windmill comprises vertical shaft with vanes rigidly attached thereto made up of a hollow cylinder articulated with moving vanes. Brackets jointed with vertical plates are rigidly connected to the vanes, outside their convex surfaces. Rubber plates are secured to said vertical plates and stay in contact with moving vanes. At the centre of vane concave surfaces, bores are made to receive tapered sleeves with balls to be press-fitted therein with cross piece located outside.
 Rotor / 2403435
Rotor comprises vertical shaft with the main radial crossbeams, at the ends of which there are blades installed, additional crossbeams installed between main radial crossbeams and peripheral curtains with vertical hinged joints on each blade. Additional crossbeams are connected to curtains by means of flexible links with the possibility of curtain installation along single line with blade at one side of rotor.
 Air power plant / 2396459
Air power plant comprises open turbine room, foundation slab on ground surface and electric machine. Electric machine is fixed by fixing brackets to foundation slab and is equipped with rotor. Lower part of rotor shaft is installed in support-radial bearing unit. Upper part of electric machine rotor is equipped with radial bearing unit and is installed in support-alignment slab. Air drive of rotor consists of cap and lever with motobody. Motobody is equipped with traction motor, air screw and wheel retractable landing gear. Axis of air screw is perpendicular to lever and perpendicular to axis of electric machine rotor. Air power plant includes link rail, control panel and outer source of electric energy for traction motors. There are vertical pillars installed on foundation slab along circumference with centre along axis of electric machine. Vertical pillars via vertical gap are fixed to each other in horizontal plane by means of girders, forming vertical open turbine rooms of shelves. Each turbine room contains electric machine in its centre as fixed with girder. Support-alignment slab of rotor is also rigidly fixed to girder by means of thrust beams.
 Wind motor / 2395711
Wind motor includes vertical shaft fixed on bearings and pair blades installed on horizontal axes connected to vertical shaft with possibility of restricted combined turn. Pair blades are fixed on horizontal axis with hinges. In kinematic link of blades and horizontal axis there installed are elastic elements and restrictors of combined turn of blades at the interaction with which and with restrictors of combined turn of blades the angle between blades is not more than 65° with its decrease at excess design force of wind, angle between horizontal plane and blade moving into the wind is not less than 10°, blade moving in wind direction and vertical plane is not less than 15°, angle of combined blade turn angle - 95-150°. Number of pair blades is not limited and they are turned relative to each other through one angle.
 Orthogonal wind rotor / 2392491
Orthogonal wind rotor refers to wind power engineering and can be used for conversion of wind energy to other types of energy. Orthogonal wind rotor includes vertical axis and not less than two horizontal beams installed perpendicular to the axis and attached to it with braces. One and more vertical metal frames forming a vertical screen are attached to each beam from above and from below; at that, one and more curtains made form flexible material are hinged to each frame. Each curtain is installed on vertical spokes tightened with bolts in upper part between two metal strips; at that, hinges are formed with bushings installed in frames and arms fixed on metal strips. Curtains are installed one above the other with overlapping in the area of metal strips. On working surface of each curtain between adjacent spokes and parallel to them there installed is one and more armours made from light material and having triangular cross direction profile; at that, each armour contacts the working surface of the curtain by means of one of its edges. Length of each armour corresponds to length of curtain, and height of armour is equal or smaller than thickness of metal strip. Armours are rigidly attached to working surfaces of curtains or each armour is covered with a patch pocket made from flexible material rigidly attached to the working surface of the curtain.
 Wind turbine / 2386854
Fluid medium turbine includes rotor and blade assembly which consists of rotor made with possibility of being rotated about rotation axis, and a lot of blades, each of which protrudes beyond external rotor surface. Each blade has an end and the main drive surface; at that, blades are made and located so that there is no effective open area between adjacent blades; at that, each blade is located within external thirty percents of the radius passing from axis centre to blade end. Turbine also includes stationary front part protruding in front of rotor and ensuring change of direction and increase of speed of coming fluid medium; at that, stationary front part has a shape and location in relation to blades, which provides direction of fluid medium towards the main drive surface of the blades. Stationary front part has at least partially spherical shape. A row of thin aerodynamic dividers is radially and uniformly arranged on the above spherical stationary front part and is meant for directing wind to short turbine blades.
 Vertical shaft rotor / 2384733
Invention relates to wind power engineering and can be used in windmills with vertical rotor shafts. Proposed rotor comprises vertical shaft, hub and blades, each representing two horizontal bars with rotary rods arranged there between. Said rotary rods are furnished with shutters jointed together by flexible link.
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FIELD: electricity. SUBSTANCE: electric generator is proposed for a wind-driven plant, comprising a stator, a rotor with a base and a cover, magnets and a flat coil. The magnets are installed on the cover and the base along a ring with a certain gap, and there is a flat coil installed between the magnets with a minimum gap, which is closed by circular plates at two sides. The flat coil is made of three windings located in radial gaps of a matrix. The matrix consists of an outer and an inner parts. Circular plates and the matrix are made of a dielectric non-magnetic material, and the base with the rotor cover are made of a magnetically conductive material. The magnets on the cover and the base are arranged as alternating with opposite poles, at the same time the magnets installed on the cover and the base opposite to each other also have the opposite poles. EFFECT: simplified design of an electric generator for a wind-driven plant with simultaneous increase of its efficiency factor. 7 cl, 9 dwg
The invention relates to electrical engineering, used to generate electricity in installations with small momentum, in particular in wind turbines with a vertical axis of rotation. Known wind energy plant with generators[1, 2, 3, 4, 5, 6]. Known for gearless wind turbines with a vertical axis of rotation [1] contains a rotor with a vertical blades mounted on the chassis of the reference nodes and executed in the form of a torus. Relative to the vertical axis of each cross-section of the torus are symmetrically electromagnets and inductors. The disadvantage of this invention is the design complexity and the difficulty of its use for electricity generation at high power. The closest to the technical essence is the electrodynamic machine [6], which contains as the stator coils a group of two serpentine windings, each of which describes an arcuate segment of a circle. Each arcuate segment, which forms a section of the stator winding, current appears as a separate phase. Serpentine coil cover plate with magnets. The disadvantage of this design is the difficulty in manufacturing, as serpentine windings are made with a slit gap, where the magnets, thus to improve the efficiency of the generator clearances should the s to be minimal, it is difficult to sustain when the slit is formed by a wiring harness. In addition, with this arrangement of the windings of the magnetic flux is used inefficiently because the magnetic lines are closed through a large air gap, and it is difficult to perform an electrical angle of 120° between phases of the winding. Task to be solved by the present invention is directed, is to develop a generator of a more simple design with high efficiency. This is achieved by winding the coil is made of annular form a single unit, and the flat coil is compressed from two sides of the annular plates and the magnets cover the coil with two sides. The invention is illustrated by drawings, which show: figure 1 - General view of the generator; figure 2 - view of the generator side; figure 3 - view of the generator from above; 4 is a view of the stator from above; 5 is a stator coil Assembly; 6 is a winding of one phase coil; Fig.7 - matrix Assembly; Fig - the outer part of the matrix; Fig.9 - the inner part of the matrix. The generator consists of a rotor 1 and stator 2. The rotor 1 comprises a base 3 and the cover 4, which is rigidly mounted the magnets 5 and 6 respectively. The base 3 and the cover 4 are made of conductive material. The base 3 with the cover 4 are connected by bolts 7 through the threaded sleeve 8. the internal cavity of the generator is closed by a cover 9. The magnets 5 on the base 3 and the magnets 6 on the cover 4 is installed clearly one against the other (figure 2) with opposite poles. On the base 3 and the cover 4 magnets installed around the ring with alternating poles (figure 3). The magnets 5 on the base 3 and the magnets 6 on the cover 4 is installed with a gap, the size of which is equal to the radial gap (Fig.7). The height of the magnets 5, 6 are made equal to the distance "E" between them in the final assembled rotor (figure 2). The magnets 5, 6 are made in the plan in the form of a trapezoid. Between the magnets 5, 6 with an air gap 10 is installed three-phase coil 11 made of wires. The coil 11 is located in the matrix 12 and is sandwiched between two annular plates 13 made of a dielectric material. The coil 11 is made of three identical circular coils 14, which are laid in the grooves of the matrix 12. Plate 12 consists of two parts - the outer part of the matrix 15 and the inner part of the matrix 16, which is made of dielectric material. The inner part of the matrix 15 and the outer part of the matrix 16 is made with the radial grooves of the same width, and when combining these parts of the matrix, the gap between them of the same width. In addition, in the assembled matrix is made of the gap "D" between the inner part of the matrix 15 and the outer part of the matrix 16. The first of the three windings are laid in the plane of the matrix in the gaps "In" The "D" (6). Other windings laid in the gaps "In" and the gap "D" have the bends 17 on the outer part of the coil and the bends 18 on the inner part of the winding. The Assembly of the generator is as follows. Made three identical windings 14 of wire of the same length. Then each of the windings 14 is placed in these grooves "In" collected matrix. Due to the fact that the windings 14 are placed at evenly spaced grooves of the same width "B" is provided by a uniform shift between the phases of the coils 11 to 120°. To provide a more dense packing without tabs wire ends of the windings bend in the gap "D". Then winding pressure on two sides of the annular plate 13, plate fasten with glue under pressure, thus ensuring a tight packing of the windings 14, providing a uniform gap between the magnets 5, 6 and the coil 11. Then the assembled coil 11 is mounted on the stator 2, maintaining a minimum air gap 10 between the magnets 5 on the base, then install the cover 4 with magnets 6, maintaining the same air gap 10, after which the bolts 7 fix the cover. Due to the proposed location of the magnets 5, 6, provides a closed magnetic flux through the cover 4 and the base 3 at the intersection which the windings of the coil 11 there arises a variable is th three-phase current electric angle of 120° between phases. The generator made according to the invention, more simple, in addition, has a high efficiency. Sources of information 1. Patent RU 2 037 070, Gearless wind turbines with a vertical axis of rotation, priority 13.03.1992, 2. Patent RU 2 064 082, Wind power installation, the priority 16.02.1993, 3. Patent RU 2 203 434, a Turbine, a priority 15.03.2000, 4. Patent RU 2331792, Magneto facing the wind, the priority 19.09.2006, 5. Patent RU 80 516 U1, priority 11.09.2008, 6. Patent US 7646132, published January 12, 2010 1. A generator for a wind power plant comprising a stator, a rotor with a base and a cover, the magnets and the flat coil, characterized in that the magnets on the base and the cover are installed on the ring, and between them with a minimum clearance is flat coil, made of several windings, and each winding is located in the radial gaps of the matrix is made of inner and outer parts, while the flat coil with two sides closed annular plates, and an annular plate and a matrix made of a nonmagnetic dielectric material. 2. A generator for a wind power installation according to claim 1, characterized in that the magnets on the base and the cover are interspersed with unlike poles, with magni is s on the lid and the base are located against each other with opposite poles. 3. A generator for a wind power installation according to claim 1, characterized in that the radial clearances of the matrix formed by the outer and inner parts are evenly spaced around the circle and have the same dimensions. 4. A generator for a wind power installation according to claim 2, characterized in that the base and cover are made of conductive material. 5. A generator for a wind power installation according to claim 2, characterized in that the magnets are made in the plan in the form of a trapezoid. 6. A generator for a wind power installation according to claim 5, characterized in that the minimum clearances between alternating magnets on the lid and the base is made equal to the radial clearances of the matrix. 7. A generator for a wind power installation according to claim 5, characterized in that the height of the magnets is made equal to the dimension between the magnets arranged on the base and the magnets located on the cover.
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