Stator of wind-driven power generator of synchronous type
FIELD: power engineering.
SUBSTANCE: stator of a wind-driven power generator of synchronous type comprising a base, fastening elements, magnetic conductors and coils, is arranged in the form of two parallel T-shaped magnetic conductors, to the ends of which a "Ш"-shaped magnetic conductor is fixed so that edges of its horizontal link are joined with ends of vertical stands of T-shaped magnetic conductors, and vertical stands of the "Ш"-shaped magnetic conductor are covered with additional coils.
EFFECT: improved manufacturability, higher reliability by usage of windings of coil type, and also the fact that widely spread T-shaped and "Ш"-shaped magnetic conductors are used.
The invention relates to the field of wind energy.
Known wind power generators [1, 2] with the stators of the traditional type, including those containing T-shaped and W-shaped yokes and coils, as well as fastening elements.
Of all known analogues closest to the claimed combination of essential features is the stator wind power , segment type, which is based on the magnetic system of the machine DC or universal, and includes a base, a coil, a source of magnetic field and magnetic circuits. Two rotor - propeller installed with the possibility of magnetic contact with the core.
The disadvantage of this stator is that it is adapted to work only with pre-cut diameter inducer, which complicates the manufacturing technology that increases weight.
The invention is aimed at improving the manufacturability and reliability.
This is achieved in that the stator wind power synchronous type, containing a base, fasteners, T-shaped and W-shaped yokes and coils, according to the invention the stator is made in the form of two parallel T-shaped cores, the ends of which are connected W-shaped magnetic core in such a way that the edge of its Gori is ostalnoe jumpers connected to the ends of the vertical posts of the T-shaped magnetic circuits, and vertical racks W-shaped magnetic core covered by additional coils.
The invention is illustrated in the drawing, in which figure 1 shows the claimed stator, front view, figure 2 - side view.
The stator wind power synchronous type comprises a base 1, W-shaped magnetic core, which consists of vertical and horizontal struts 2 jumper 3, two T-shaped magnetic circuits, each of which consists of vertical posts 4 and the horizontal part 5. The stator is in contact with the rotary element, which consists of corner pole pieces 6 and the source of the magnetic field 7 (for example, a permanent magnet). A rotor element mounted on the end of the blade 8. The stator is provided with a main coil 9, covering the vertical posts 4 T-shaped magnetic circuits. The ends of these bars 10 by means of bolts 11 are fixed to the base 1 so that the horizontal crosspiece 3 is above the vertical posts 2. Rack 2, in turn, covered by the coil 12. The stator and rotor are separated by an air gap 13.
The stator operates as follows: when the rotation of the windwheels rotary elements that are attached to the blades periodically enter into magnetic contact with the adjacent strip-magnetic - horizontal sections 5 of the T-shaped magnetic circuits. In d is the query result in the coils 9 induced EMF, which is passed on to the consumer. The magnetic flux is closed through the circuit: - right corner of the magnetic core 6, an air gap, the right horizontal section 5, vertical posts 4, the horizontal crosspieces 3, again vertical posts 4, the T-shaped magnetic core (left), the left horizontal section 5, the air gap, the left corner of the magnetic core, the source of the magnetic field 7.
A feature of this stator is that in addition to the main flow through the uprights 2 and the coil 12 can use ripple flux arising from the closure and opening of the magnetic circuit and caused the fall of the magnetic potential on the horizontal crosspieces 3.
Feasibility advantage of the stator is its high technology based on the use of windings of the coil type, as well as on the use of common T-shaped and W-shaped yokes. In addition, instead of the W-shaped magnetic core is permissible to use the U-shape, i.e. the same W-shaped without vertical middle rack, or one wide T-shaped, i.e. the same W-shaped without the two outer uprights, however, the number of additional coils 12 is reduced.
Sources of information
1. As the USSR №732572 / Vchalichob and other - wind farm. BI No. 17, 180, F03D 3/30.
2. As the USSR №861716 / Ispropyl and other - Direct-drive wind turbines. BI NO. 11,1981, F03D 1/00.
3. RF patent №2204734 / A.m.litvinenko. The stator wind power, publ. BI No. 14, dated 20.05.2003, C-ka No. 2001129417/06, 31.10.2001, MKU F03D 9/00.
The stator wind power synchronous type, containing a base, fasteners, T-shaped and W-shaped yokes and coil, wherein the stator is made in the form of two parallel T-shaped cores, the ends of which are connected W-shaped magnetic core in such a way that the edge of its horizontal jumpers connected to the ends of the vertical posts of the T-shaped magnetic circuits, and the vertical rack W-shaped magnetic core covered by additional coils.
FIELD: power engineering.
SUBSTANCE: wind-driven power generator stator comprising a base, fastening elements, U-shaped magnetic conductors and coils, is equipped with strip magnetic conductors placed above ends of U-shaped magnetic conductors, at the same time thickness of strip magnetic conductors is equal to height of coil extension above ends of U-shaped magnetic conductors.
EFFECT: higher reliability and improved manufacturability based on using coil-type windings and widely spread U-shaped magnetic conductors.
FIELD: power industry.
SUBSTANCE: wind-driven power generator includes rotor with vertical rotation axis, which is arranged inside fixed holder of wind guiding plates and formed with blades attached to load-carrying cylinder so that a slot-type hole is formed along their base between them and load-carrying cylinder. Each blade is equipped on front side of its plane with main longitudinal swirlers in the form of Δ- or I-shaped projections made throughout the length of blades and perpendicular to plane of blades. On rear side of plane of each blade, on its vertical edge which is the closest one to load-carrying cylinder of axis there made is additional swirler in the form of longitudinal thickening having Δ-shape in its cross section. Each wind guiding plate is located radially along rotor axis, besides, it is flat and has smooth bend in narrow part of confuser channel formed with adjacent wind guiding plates for air flow direction, at an angle of 80° to 90° to longitudinal section of rotor blade and it is equipped at least with one plate turned by means of an actuator, which is located along surface of wind guiding plate with rotation axis parallel to rotor axis. Load-carrying cylinder of rotor axis is equipped with retractable plates located radially and installed with possibility of radial movement and overlapping or changing the value of slot-type hole between load-carrying cylinder and each of rotor blades.
EFFECT: improvement of wind-driven power generator efficiency and optimisation of its operation at high wind velocities.
4 cl, 2 dwg
FIELD: power industry.
SUBSTANCE: wind-driven power plant includes a nacelle with rotor, generator, AC rectifier on generator side, AC rectifier on the mains side, and transformer; the above nacelle is arranged on the tower; besides, both of the above AC rectifiers on constant voltage side are electrically connected to each other, and at that, AC rectifier on the mains side is connected on alternating voltage side through transformer to infeed point of the mains receiving the energy. Each phase module of AC rectifier on the mains side includes upper and lower branches (T1, T3, T5; T2, T4, T6) of valves, which contains at least two electrically and in-series connected bipolar sub-systems, and AC rectifier on generator side and AC rectifier on the mains side are connected to each other on constant voltage side by means of DC cable.
EFFECT: wind power station consisting of multiple wind-driven power plants is designed and has flexible structure as to direct current; nacelles in each wind-driven power plant have smaller dead weight.
14 cl, 9 dwg
FIELD: power industry.
SUBSTANCE: wind-driven power plant includes wind wheel installed on the mast and provided with vertical rotation axis and blades interacting with rotor-inductor of generator. Internal surface of rotor-inductor is provided with a system initiating magnetic field by means of constant magnets; besides, torque moment from blades of wind wheel is transferred by means of system of traverses and power shaft to generator. Plant also includes a control unit. Generator is end-type, and stator with coils is located inside the generator and foxed on its axis-support; rotor-inductor of generator rotating on bearings about generator axis-support is formed in its turn with a housing and upper and lower shields installed on its external part, and is arranged between upper and lower traverses. Internal ends of traverses are installed by means of fasteners on shields of external part of rotor-inductor housing; in addition, rotor-inductor housing serves as power shaft.
EFFECT: reliable operation of the plant due to simpler design and reduced overall dimensions and weight by means of reduction of load on generator bearings and bending moment on its axis-support.
FIELD: power industry.
SUBSTANCE: stabilising wind power unit consists of load-carrying mast with turning assembly and nacelle at the top. Nacelle is equipped with stator winding and includes rotating horizontal shaft with turbine on the protruding end. Generator consists of rotor put on shaft and stator winding enveloping it. Rotor has the possibility of forced retraction beyond the limits of stator winding by being moved in downwind direction and back to initial position. Shaft is installed in sliding bearings and equipped with spiral-conical compression spring in the section between rotor and rear wall of nacelle. Spring interacts with rotor through disc support element freely rotating on the shaft. In the section of horizontal shaft between rotor and front wall of nacelle there provided is shock absorber.
EFFECT: stabilisation of parameters of electric energy generated with wind power unit.
2 cl, 3 dwg
FIELD: machine building.
SUBSTANCE: pipe (4) has lower section, in fact in the form of pyramid, and upper section forming cylindrical section (4a) which is extended upwards with the specified size and located in ceiling part of building (3) of temporary storage facility (1) for hot-rolled roll (2) which is a semi-finished product from iron and steel, which acts as high-temperature thermal radiator, which is made using the hot rolling equipment of steel mill. Electric generating turbine (5) is located in the specified position in cylindrical section. Plenum duct (7) is located on lower end section of side walls of the building. Hot-rolled rolls which are under high-temperature conditions after manufacture are supplied subsequently to the roll storage facility and stored there till they are moved to be used at the next processing stage. Ascending air flow is formed by subsequent heating of the air supplied to the building through plenum duct using the heat retained in hot-rolled rolls. Electric generating turbines are rotated by ascending air flow.
EFFECT: heat retained in thermal radiator can be used effectively, ie heat recovery is performed.
14 cl, 17 dwg
FIELD: power industry.
SUBSTANCE: wind-driven thermal hydraulic plant includes drive wind motor with vertical shaft 1 kinematically connected to hydraulic pump 3 and ferromagnetic rotor 2 arranged inside tight tank containing magnetic liquid 6 in the field of electrical excitation winding 5 and constant magnet 7, which are located outside that tank thermally connected to heating radiator 13 of thermal energy consumers. Tank with magnetic liquid 6 and rotor 2 is equipped with liquid jacket 4 for heat removal, which is hydraulically connected to hydraulic cylinder 8 of constant magnet 7 movement, and through circulating hydraulic pump 3 to expansion tank 14 and outlet pipeline of heating radiator 13. Tank is connected in series through control valve 9 to thermal relay 10, electrical battery of thermal elements 11 and automatic valve of thermostat 12, which shunts the inlet and outlet pipelines of heating radiators 13. Excitation winding 5 is electrically connected to electrical battery of thermal elements 11 through normally closed contacts of thermal relay 10 and level relay 16 of expansion tank 14 equipped with maximum allowable pressure safety valve 15.
EFFECT: simpler design and smaller dimensions of the plant.
4 cl, 1 dwg
FIELD: power industry.
SUBSTANCE: electrical wind-driven unit includes wind wheel connected through mechanical transmission to generator shaft. Generator is connected through switching unit to load resistance. Electrical wind-driven unit is also equipped with wind turbine coaxially located on wind wheel hub. Wind turbine is provided with a shaft having thread and forming together with a hole in the wind wheel hub a screw pair. Electrical wind-driven unit is provided with wind turbine shaft position sensor connected to control device input. Control device output is connected to switching unit input.
EFFECT: increasing use efficiency of electrical wind-driven unit due to more complete use of wind energy.
1 cl, 1 dwg
FIELD: power engineering.
SUBSTANCE: jet blast deflector fence comprises a frame, a jet blast deflector surface and elements of frame fixation to an aerodrome pavement. The jet blast deflector surface is arranged in the form of a metal tape fixed on a frame. An additional jet blast deflector surface is fixed to the frame, and in the surface there is an opening for supply of a gas and air jet to a windwheel. The windwheel is installed between jet blast deflector surfaces with the possibility to transfer a torque to a power accumulator.
EFFECT: conversion of energy of gas and air jets produced in process of operation of gas-turbine engines of aircrafts into energy of windwheel rotation with the possibility to transfer the developed torque to the power accumulator.
SUBSTANCE: mobile self-contained power supply system includes wind generator, converter of solar energy to electrical energy, storage batteries the outputs of which are connected through voltage inverter and distributing device to load, and control assembly, radio channel assembly with communication antenna, which is connected to control station, central control room and wheel landing gear equipped with fasteners for air transportation. Storage batteries include at least three compartments; wind generator and converter of solar energy to electrical energy are connected to compartments of storage batteries through storage battery charging unit the control input of which is connected to output of control assembly; system housing is made in the form of a small car installed on wheel landing gear; when in transport condition of the system, wind generator is located inside the above small car.
EFFECT: enlarging operating capabilities.
10 cl, 3 dwg
FIELD: blowers united with wind turbine, possibly used in different branches of industry and in objects of social and living designation.
SUBSTANCE: blower includes drum impeller with vanes mounted in horizontal shaft. Impeller is arranged in cylindrical casing having air intake opening and diffuser. Novelty is wind turbine built-in to structure of blower system. Wind turbine includes wind wheel with vanes on horizontal shaft. Wind wheel is arranged in cylindrical casing with air intake opening and diffuser. Diffuser of blower is connected with air intake of wind turbine. Carrying structure of blower is joined with carrying structure of wind turbine.
EFFECT: improved design, enhanced efficiency.
3 cl, 6 dwg
FIELD: power engineering; small power stations with open turbine hall.
SUBSTANCE: proposed emf source has open turbine hall; foundation; electrical machine provided with rotor, stator, and current-collection unit and connected to drive; self-contained starting motors connected to power supplies; as well as control unit and output module. Novelty is that open turbine hall floor of emf source is provided with circular race, surface part of foundation is equipped with anchor straps, slabs, locking brackets and rollers, aligning brackets and rollers; rotor is installed in journal bearing on annular support of foundation rotor; shaft of the latter has axial hole with service lines; source has supporting and aligning slab incorporated in frame built of hold-down beams, thrust columns, frame and foundation; it also has capital, rotor and stator drive mechanism, pods, aerodynamic compensator, distribution board, jet thrust matching device, thrust electric circuit switch, and auxiliary equipment power supply unit.
EFFECT: simplified design, facilitated maintenance of unit incorporating emf source; enhanced efficiency.
1 cl, 16 dwg
FIELD: wind-power engineering; electrical energy generation.
SUBSTANCE: proposed wind-powered generator has tower with adjustable windwheels, windward positioning device, wound rotors and stators; rotors are made in the form of concavo-concave aerodynamic disks mounted on ends of blades; stator has pole shoes whose ends are coupled with rotors. Windwheels are mounted on shafts of convertible electrical machines incorporating stator excitation system and rotor inductor; inductor coils are connected to rectifiers mounted on windwheel blades; rectifier outputs are connected to field coils installed in rotor disks.
EFFECT: enhanced specific load, reduced starting torque, facilitated acceleration to rated speed.
1 cl, 3 dwg
FIELD: wind-power engineering; wind power generators.
SUBSTANCE: proposed windmill-electric generating unit has electric generators; novelty is that this unit is made in the form of flow-through piping network with sealed valves and pressure transducers, generating unit ends being disposed in areas held at different atmospheric pressures; piping length and diameter meet following expression: D/L = ρλv
EFFECT: provision for continuous operation of windmill-electric generating unit.
1 cl, 1 tbl
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.
FIELD: wind power engineering.
SUBSTANCE: invention relates to plants generating electric energy to produce hot water for industrial use. Proposed combination wind power plant containing energy generating unit in form of windmill, air flow booster connected with windmill and energy generating and transforming unit in form of air turbine and generator connected to turbine, generator being butt-joined with gas-turbine turbine engine is furnished, according to invention, with heat recovery unit and processing unit, for instance, sea water freshening and cleaning unit made in form of thermal distiller and reverse osmosis device connected with heat recovery unit. Blades of windmill are made divided into sections for turning relative to each other with possibility of turning relative to longitudinal axis. Energy generating and transforming unit is provided with additional self-contained internal combustion engine and electric generator connected with said engine which is coupled with generator of gas-turbine unit to form common power unit. Control system includes device which, together with computer, provides electric parameters similar to network parameters. Energy generating unit is provided with device to divide air flow, said device being connected by flexible air line with air flow booster made programmable, for instance, pneumatic and multistage, whose low-pressure stage is connected with air turbine and with each member of processing unit, and high-pressure stage, with device to evaporate water of thermal distiller and reverse osmosis device which are connected with heat recovery unit. Point of connection of air line and power supply line is common, and torsion shafts coupled with vane engine and turbine are connected to said point.
EFFECT: increased efficiency owing to recovery of exhaust (hot) gases of engine and dissipation heat, enlarged sphere of industrial application of plant.
34 cl, 1 dwg
FIELD: power and heat supply.
SUBSTANCE: invention relates to self-contained power, heat and hot-water supply systems of dwelling houses and industrial buildings. Proposed system contains wind power generating plant for generating electric power and connected with power consumers; energy accumulator connected with wind power generating plant and power consumers; plant for converting solar energy into heat energy and heat accumulator, both connected with heat energy consumers. System includes heat pump driven by wind power generating plant and connected with heat energy consumers; inverter through which electric energy accumulator is connected with electric energy consumers; sewage water heat recoverer; Earth heat collector and automatic control system connected through heat and electric load transmitters with actuating mechanisms. Plant for converting solar energy into heat energy contains gang of solar collectors connected by heat carrier lines with at least two heat exchangers, one of which is arranged in heat accumulator and the other in heat exchange device connected by heat carrier line with Earth heat collector. Heat pump contains compressor driven by wind power generating plant, at least two extension evaporators and at least two extension condensers. Extension evaporator is built into heat exchange device connected by heat carrier line with Earth heat collector. Extension evaporator is built into sewage heat recoverer. Extension condenser is built into hot-water tank, and second extension condenser is built into heat exchange device connected by heat carrier lines with heat energy consumers.
EFFECT: improved reliability and economy of self contained power and heat supply systems.
10 cl, 5 dwg
FIELD: wind power engineering.
SUBSTANCE: invention can be used for converting energy of air flows into electric energy. Proposed method includes passing of first on-coming air flow between two conversing and diverging aerodynamic surfaces in direction of flow to form zone of reduced pressure and transmitting of second air flow along pipeline from surrounding space into zone of reduced pressure. Converter is installed on way of second air flow. Space is made in zone of reduced pressure in, at least, one of aerodynamic surfaces to provide swirling of second air flow by wall of said space. Swirling of second air flow is formed tangentially in direction of passing of first on-coming air flow. Device contains two plates. Pipeline is designed to transmit second air flow. One end of pipeline is made open and it is connected with surrounding space, and other end is connected to outer surface of one of plates. Converter is installed in pipeline. AT least one of plates is provided with space to swirl second air flow. Space communicates with pipeline. Space is made orthogonally relative to direction of first on-coming air flow tangentially in direction of first on-coming air flow.
EFFECT: improved efficiency of energy conversion.
23 cl, 14 dwg
FIELD: heat power engineering.
SUBSTANCE: invention can be used for heating and hot water supply of different buildings. Proposed wind-heat generator contains water heat accumulator, windmill, bevel gear train (transmission), mechanical heater in form of agitator with movable blades each pair of which is made to centrifugal governor scheme (Watt governor). Wind heat generator is furnished additionally with second bevel gear train (transmission) rotating in opposite direction relative to first bevel gear train, each train being provided with equal number of agitators with movable blades.
EFFECT: increased efficiency of utilization of wind energy in wider range of wind velocities, improved reliability of heat generator and reduced cost of thermal energy.
FIELD: wind power engineering.
SUBSTANCE: invention relates to wind plants for direct conversion of wind energy into thermal energy. Proposed wind thermal plant contains windwheel with rotary blades and friction heat generator with heat exchanger. Novelty is that heat generator is made in form of conical drum with ribbed surface and rotor is provided with friction lining being installed on shaft of windwheel. Pressure of lining onto drum surface depends on wind head. Heat exchanger is provided with air intake. Windwheel is provided with speed and vibration protective device.
EFFECT: simplified design, improved reliability in operation within wide range of wind loads with provision of ventilation of heat rooms.
2 cl;, 4 dwg