Self-excited brushless dc turbine generator

FIELD: electricity.

SUBSTANCE: there proposed is self-excited brushless DC turbine generator the feature of which is the possibility of self-excitation on magnetic and electromagnetic basis, as well as development of multi-turn series-parallel toroidal slotless winding of armature. At that, electric receivers without rotating parts will successfully operate also on DC, and electric AC receivers with rotating parts will be powered through inverter electronic devices. The proposed electric machine can be used as turbine generator at its being arranged in water flow medium, as well as wind-driven generator at its being arranged in air flow medium. As far as invented acyclic brushless DC machines are manufactured in big quantity, generation procedure of electric energy will change because obtained alternating current with further conversion to direct current with valve devices is expensive more than by two times than obtained DC with its further conversion to AC with inverter devices. As far as acyclic motors are manufactured (invented generators have reversibility), need for alternating current is no more actual. Future belongs to direct current. Mr. M. O. Dolivo-Dobrovolskiy, inventor of three-phase AC system, our compatriot (1861-1919) expressed his opinion on the above.

EFFECT: simple device and its high technical reliability which includes the need for constant surveillance.

3 cl, 3 dwg

 

The invention relates to electrical engineering and will be used in the manufacture of turbine generators for use inexhaustible alternative kinetic and potential energy of the water stream media to generate electricity.

In the device of the existing electrical DC machines no smoothboard.net. They have the collector and the brush-contact sites as a means of switching and power collection by converting AC to DC.

The presence of a header in a rotating armature winding substantially reduces the operational reliability and technical resource [1].

Prototype (2) the proposed device is a self-excited brushless DC generator (see patent author No. 2124799) with excitation permanent magnets, but containing in its device the following disadvantages:

the shaft generator is not bifurcated into two half-axis is not on the axes of the turbine blades and is driven into rotation attached to the engine.

- On the axis of the generator is not installed brush-contact nodes in the circuit supply voltage radial electromagnets of the tap from the armature winding to ensure electromagnetic excitation.

- Fixed a bifurcated annular magnetic armature is not isolated from the chassis generators is Torah, not entered into the scheme armature winding to create its mnogovitkovoi in series-parallel execution.

On the rotary mechanical bilateral magnetic inductors are not installed ignominiously radial electromagnets, which eliminates the creation of magnetic and electromagnetic excitation of the generator.

The invention is directed to the achievement of a positive feasibility results by eliminating the above mentioned disadvantages of the prototype.

This technical result is ensured by the fact that self-excited brushless turbine generator DC, comprising: a shaft driven in rotation attached to the engine, a fixed split ring magnetodiode anchor with axial and coaxial grooves for laying winding is performed in a sequential scheme, a rotating mechanical bilateral magnetic inductors radial permanent, permanent magnets for excitation, characterized in that the shaft of the turbogenerator is bifurcated into two shafts, the ends of which are mounted turbine blades, rotating in different directions under the influence of kinetic and potential energy of a stream of water environment, and on one of the axes of the turbogenerator set the brush-contact sites ensure the supply voltage is radial to lavim the electromagnets of the tap from odnorazovoe toroidal becasovo armature winding.

- Fixed a bifurcated annular magnetic armature is isolated from the casing of a turbo-generator, introduced in the scheme odnorazovoe toroidal becasovo armature winding with the creation of multiple parallel winding sections and transforms it into a multiturn in series-parallel execution.

On the rotary mechanical bilateral magnetic inductors installed radial and annular electromagnets to create magnetic and electromagnetic excitation of the turbine generator.

On the longitudinal section (figure 1) presents structural diagram of the device of the turbogenerator, containing a bifurcated magnetic anchor 1, 2, insulating, fixing spacers between the bifurcated sides of the magnetic circuit of the armature 3, textolite inserts on the axes of the turbine 4, the right-hand axis 5 of the turbine with the turbine blade 6, the left axis of the turbine 7 turbine blade 8, the brush-contact node in the circuit 9, an insulating spacer on the magnetic armature 10, the radial and circular magnets 11 on the right-hand magnetic circuit of the armature 1, the radial and circular magnets 12 on the left-hand magnetic circuit of the armature 2, the connecting contacts between the wire winding the anchor and the body of the magnetic circuit of the armature 13, the axial sections of the armature winding 1, coaxial sections of the armature winding 15.

Figure 2 digits 2 and 1 is the left-side and right-side magnetic armature, the axial sections of the armature winding 14, the coaxial sections of the armature winding 15, the connecting contacts between conductive armature winding 13, the attachment of the insulation holding the spacers between the bifurcated sides of the magnetic circuit of the armature 3.

On the mnemonic diagram (figure 3) figure 9 depicts the brush-contact nodes, radial permanent magnets 11, the radial electromagnets 12, the connecting contacts between conductive armature winding and body of the magnetic circuit of the armature 13, the axial and coaxial sections of the armature winding 14, 15.

The device actually consists of two combined in a single product generators operating on one armature winding.

Constant electric current is formed without any means of switching, and in the absence of sliding contact in the output circuit of the armature.

The turbine generator is made with unidirectional magnetic flux, not a variable in magnitude and direction. EMF in axial sections of the armature winding occurs under the law of electromagnetic induction in the interpretation Mfradio, i.e. depending on the difference of the peripheral speed of the intersection of the conductor along its length invariant magnetic flux. This can be seen from the formula E=BL(V2-V1), and the estimated value of the DS will be according to the formula

that is the formula of the invention.

All values in this formula, such as magnetic induction, the length of the conductor L and speed V are constant values.

Work counter same magnetic flux, the magnetic circuits which are separated by an air gap, in practice and is quite possible. This should be used to calculate the divided magnetic circuits.

The proposed turbine generator can be made with power up to 50 kW, voltage up to 1000 volts. The resulting DC voltage will be greater, the more series-connected active sites armature winding. When the receiving terminals without rotating parts will be run on direct current, and the receiving terminals of the alternating current rotating parts will be supplied through the voltage dividers and the inverter electronic devices. The same applies to other inventions of the author (see patents author No. 2284629 and 61484).

Invented unipolar brushless devices of DC generators allow in the future as mass production, with the increase of the output power gradually changing technologies of electric energy production, since receiving AC followed by its transformation into a permanent valve is a device more than twice as expensive, than getting DC with its subsequent transformation into the AC voltage dividers and inverter devices.

As the production of unipolar motors, and invented the generators have reversibility, will completely eliminate the need for AC. The future belongs to DC. This was expressed by the inventor of the three-phase AC system, our sootechestvennik Mogileva-Dobrovolsky (1861-1919).

The turbine is placed on the river bottom and works as follows: bilateral turbine blades in the water flow begins to rotate in different directions, because their blades are respectively orientate. While the primary excitation provide permanent magnets, and then tap from the toroidal becasovo armature winding through the brush-contact node voltage is passed to the windings of the electromagnets, and therefore magnetic and electromagnetic excitation of the turbine generator.

The magnitude of the output power and the level of the received voltage in direct proportion to the rotation speed of the turbines on both axes.

The proposed device of the turbogenerator solves the wide use of alternative inexhaustible energy streaming aqueous medium to produce electrical energy.

Literature

1. the device generator copyright patent No. 2124799, 2284629 and 61484.

2. Patent information for classes MCI NC 23/54, 31/00, 23/00, 31/02, 21/20, 57/00.

3. Author's certificate of the USSR No. 129715, 118302.

4. "Electrical engineering", M.: Art, 1953, Pguvotei.

5. "Theoretical foundations of electrical engineering", SEI, Moscow-Leningrad, part 1, 1959

6. Great entsiklopedicheskii dictionary, M.: Scientific publishing house, 1998, str.

7. "Electric machines and drives", M: "Agropromizdat",1989, page 4, 10-12 (APB and Lpecb).

8. Photocopy of article "the electric current of the brook" from Popular mechanics magazine, No. 8 (70) August.

1. Self-excited brushless turbine generator DC, containing a shaft driven in rotation attached to the engine, stationary bifurcated annular magnetic armature with axial and coaxial grooves for laying winding is performed in a sequential scheme, a rotating mechanical bilateral magnetic inductors radial permanent magnets, characterized in that the shaft of the turbogenerator is bifurcated into two shafts, the ends of which are mounted turbine blades, rotating in different directions under the influence of kinetic and potential energy of a stream of water environment, and on one of the axes of the turbogenerator set the brush-contact sites supply radial and annular electromagnet is m a tap from the toroidal odnorazovoe becasovo armature winding.

2. The turbo-generator according to claim 1, characterized in that the stationary bifurcated annular magnetic armature is isolated from the casing of a turbo-generator, introduced in the scheme odnorazovoe toroidal becasovo armature winding and turning it into a multi-turn, in series-parallel execution.

3. The turbo-generator according to claim 1, characterized in that the rotating mechanical bilateral magnetic inductors installed radial and annular electromagnets to create magnetic and electromagnetic excitation of the turbogenerator.



 

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Dc electric machine // 2410825

FIELD: electricity.

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Dc electric machine // 2410825

FIELD: electricity.

SUBSTANCE: invention relates to the field of electric engineering, in particular, to electromechanical conversion of electric energy, and may be used in electric engineering and electric machine building industry and on transport as electric drive with low-voltage supply. Technical result of the present invention is increased efficiency of DC electric machine by reduction of electric and magnetic losses, simplified current pickup and reduction of cost. Specified technical result is achieved by the fact that in DC electric machine - unipolar with excitation coaxial coil arranged on stator, with cylindrical hollow or disk anchor made of soft magnetic material, according to invention, to remove current from anchor, double-sided hard ring brushes are used from antifriction material of high conductivity, contacting with both side surfaces of peripheral part of anchor, and excitation coil is arranged of wire of ferromagnetic material. Availability of solid ring brushes in the device from antifriction material of high conductivity simplifies brush device, reduces cost of electric machine and makes it possible to eliminate formation of current cords in machine anchor, developing longitudinal components of anchor magnetomotive force and pulsation of magnetic flow, deteriorating conditions of machine operation and reducing its efficiency, and also makes it possible to increase current in machines with disk anchor, to eliminate deformations of anchor and to reduce diamagnetic gap and to eliminate axial loads at machine shaft.

EFFECT: using ferromagnetic material for excitation winding and anchor reduces cost of electric machine, reduces magnetic flow of excitation winding scattering and magnetic resistance in gap between poles of machine.

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FIELD: electricity.

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FIELD: electricity.

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2 dwg

FIELD: electricity.

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EFFECT: improving electromechanical characteristics, improving operating reliability, increasing wear resistance, simplifying the design, increasing operating voltage by several times and enlarging the area of its application.

2 dwg

FIELD: electricity.

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FIELD: electric engineering.

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EFFECT: increased specific power and reliability of disk electric machine.

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FIELD: electricity.

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3 dwg

FIELD: electricity.

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EFFECT: simplified construction and motor manufacturing technology, enhanced operation reliability.

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EFFECT: simplifying the design and improving operating reliability and service life of motor.

1 dwg

FIELD: electricity.

SUBSTANCE: contact-free electrical machine where armature conductors cross with each other in active field as single-directed magnetic field of inductor, is consisted of a rotor represented as explicit-pole inductor having its symmetrical axis from N pole to S pole coincided with rotor rotation axis, and stator with conductors being located on inner surface of stator along cylindrical moving lines. The said conductors are split into two groups. Conductors of one group are placed around inductor pole with N-polarity, while conductors in other group are placed around inductor pole with S-polarity. Conductors of one group are placed mirrored - symmetrically with the regard to conductors of the other group. In other words, they are placed so that front ends (final ends) of the conductor active parts are close to machine lids, and their final ends (front ends) are close to the central part of stator. Machine shaft and its side lids may be manufactured from non-magnet materials.

EFFECT: simplified design of multi-purpose contact-free electrical machine.

2 cl, 4 dwg

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