Rotary pulse generator
(57) Abstract:The invention is intended for use as a powerful pulse of energy sources in fusion, laser and other installations. The invention allows to increase the pulse power generator. Rotary pulse generator includes a rotor 1 and the stator 2, the grooves are placed coils 4 and 5 are fastened together by the bands with the formation of explicit poles 6. Coils 4 and 5 is made in layers of electrical conductor separated by electrical insulation between the turns and layers. Coils coils 4 and 5 of the rotor 1 and stator 2 made of a conductor rhombic cross-section and are located in a layer with a pitch between the centers of the conductor turns, exceeding the largest diagonal of the rhombus. The coils in each layer are offset from the coils surrounding layer half step. In the first layer of coils 4 and 5 between the groove 3 and the coils and in the last layer between the coils and the outer brace installed liners, the shape of the gap between the coils and behind the coils on the magnitude of the insulating layer. The insulating layer is made of fibers laid in a formed curved gaps between the layers. 1 C.p. f-crystals, 3 ill. The invention of otnositeljnogo energy, designed for use in power systems large thermonuclear devices, lasers high power in other areas of technology.Known rotary pulse generator containing laminated rotor and stator phase windings, connected in series through two brush-collector node, a switching power supply to generate the primary magnetic flux in the gap of the generator and the load connected in series with the stator winding is connected with the other end through the switch to the power supply . The principle of operation is that when the coil windings of the rotor shown in rotation from a third-party engine, pass over, according enabled coils of the stator winding, the pulse power source through the switch discharges in series the windings of the stator and rotor and the load, creating a gap of the generator of the initial magnetic flux. When the switch is chosen so that the required value of the magnetic field in the gap was achieved by the time of finding the center pole of the rotor under the center pole of the stator. Upon further rotation of the rotor pole are the tion above the coils of the stator winding, which leads to a sharp decrease in the inductance of series-connected windings. When the rotation of the rotor, to achieve the position counter is enabled windings, there is a compression of the magnetic flux (magnetic field) to 5 - 15 TL. In the air gap and there is a powerful braking torque acting on the coil. The change in inductance leads to a proportional change in current in a circuit consisting of series-connected windings of the rotor, the stator and the load, and the evolution of a large shock power on the load. As a result, the generator allows for a short time, comparable with the time of rotation of the rotor on one pole division, to develop high impact power on the load and to give her some of the kinetic energy of the rotor.With a sharp decrease of the self-inductance of the generator in the gap between the coils of the stator and rotor of the value of the magnetic field reaches a maximum and coils apply maximum force. In the generator windings are two main forces: in the form of radial magnetic pressure on the winding and from tangential braking torque. These forces cause the compressive stress in the windings and can be achieved depending on the power generator 400 - 200 the importance of the moment. Therefore, the mechanical strength of the material of the windings and insulation imposes a limitation on the magnitude of the pulsed power generator.Known rotary pulse generator made according to the above principle, in the slots of the rotor and the stator of which is placed the coil-bound with bandages education explicit poles, made in layers of electrical conductor separated by electrical insulation between the turns and layers .The rotor and stator of the generator recruited from the round plate with the four slots located on the perpendicular diameters. Accordingly, the projections of the plates form a pole. Each pole of the rotor and stator is surrounded by coils placed in the slots. The depth of the groove is determined by the combined thickness of the insulation of the coil is determined by the penetration depth of the magnetic field in the conductor of the coil when the compression field at the time of pulse generation. During compression of the magnetic field between the windings of the rotor and stator arises powerful braking torque, which pushes the rotor winding and stator in the tangential direction to the side edges of the groove of the rotor and the stator, thereby causing compression of the electrical insulation of the coil and the conductor. Value Dopovidi pole, determined by their mechanical strength and is within the range (3 - 8) 103kg/cm3. In the traditional design of Electromechanical pulse generator with pulse capacities that are on the level (1 - 10) GW, the pressure on the side wall of each slot of the rotor and stator from the braking torque and, accordingly, the conductor and the insulation reaches (15 - 30) 103kg/cm2. The fastening of the same windings of the rotor and stator causes the well-known problems associated with the need to reduce the gap between the windings of the rotor and stator and the best possible ratio of change of inductance, which limits the free space for the location of the fastening elements of the windings.The use of the principle of separation of windings on the part resting on the teeth of each part of the coil, for example, as turbine generators can reduce the specific pressure on the coil, because each part of the coil sees only part of the braking torque. But also reduces the shock pulse power due to the lower ratio of the change of inductance due to the deterioration in the compression of the magnetic field such partitioned coils as the magnetic field falls between parts catus generators of this type.Similar disadvantages inherent in pulse generators, made of plastic (i.e., not having the iron of the magnetic circuit) to significantly reduce the weight of generator (2.5 - 3 times), which is very important in their application in high-power systems power available on mobile objects.The invention solves the problem of increasing the specific pulsed power rotary pulse generators.The invention consists in a rotary pulse generator containing a rotor and a stator, the slots which are placed in the coil, sealed tyres, with the formation of explicit poles, made in layers of electrical conductor separated by electrical insulation between the turns and layers, in which the turns of the coils of the rotor and the stator is made of a conductor rhombic cross-section and are located in a layer with a pitch between the centers of the conductor turns, exceeding the largest diagonal of the rhombus, the coils in each layer are offset from the coils surrounding layer half step; in the first layer of coils, between the groove wall and the coils, and in the last layer, between the coils and the outer brace installed liners, the shape of the gap between the coils and behind the coils on the value of the CLASS="ptx2">In the particular case of the execution of the generator of the plastic in the area of rotor poles and stator concentrically mounted strips attached respectively to the rotor and the stator, with a total thickness equal to the difference between the total thickness of the coils with electrical insulation and the thickness of the insulating layers of fiber.Achievable technical result is to increase the specific impulse of the power generator 3 to 5 times.The invention is illustrated in the drawing, where Fig. 1 schematically shows a General view of the proposed generator (cross section) of Fig. 2 shows in section a section B of the winding of the rotor, and Fig. 3 shows a section in the setup concentric strips.The rotor 1 and the stator 2 (Fig. 1) made in particular of plastic material, have four groove 3 located on the perpendicular diameters. In the grooves of the installed coil 4 of the winding of the rotor coil 5 of the stator winding, so that in the sectors between the coils on the rotor and the stator are formed explicitly pole 6. The coils 7 of the coils of the rotor and stator of the electrical conductor rhombic cross-section, surrounded by insulation (Fig. 2), are located in a layer with a pitch between the centers of the conductor coils, which is not misleadig layer half step. In the first layer of coils, between the wall 8 of the groove and the coils 7, and in the last layer, between the coils 7 and the outer band 9, installed the liners 10, the shape of the gap between the coils (in the particular case of this form is close to triangular) and behind the coils on the magnitude of the insulating layer, made of high-strength fiber 11, arranged in curved spaces between the layers of the coils. In the area of the poles 6 of the rotor 1 (Fig. 3) concentrically mounted strip 12 attached to the rotor in this area by the pins 13. The same strip installed in the area of stator poles. Conclusions the windings of the rotor and stator are connected in series through two brush-collector node (not shown) and connected to a pulsed power source. The liners 10 and the strip 12 is made of a plastic material.To the description of the operation of dynamoelectric generator should be added that such a uniformly distributed winding in the slot 3 of the rotor 1 and stator 2, the magnetic field effectively compressicauda with a sharp decrease in the inductance of the counter included windings of the rotor and stator and does not sink for the coil (Fig. 1) as part of the magnetic field passing through the air gaps between the coils of the first layer fructure coils 4 and 5 of the rotor and stator, respectively, fully retains a magnetic field within its cross-section and provides the desired rate of change of inductance.Power braking torque when it is crushed by the amount by the number equal to the number of conductors in the slot, which can be positioned in the groove 50 to 500 pcs. or more, if necessary. Accordingly, specific pressure of each of the conductor 7 on the mechanical structure 11 and the insulation of the conductor is reduced in proportion and can be from 600 to 60 kg/cm2. Such levels of stress withstand existing materials and insulation. The proposed form of the cross section of the conductor and the mutual displacement of the coils formed by molding and zepecki mechanical structure of plastic with a curved reinforcing fiber 11. Therefore, such a plastic keeps the inside of each conductor independently due to the curved reinforcement fiber 11. To ensure the required strength taking into consideration the cyclic action of loading for reinforcing the insulating fiber 11 is advisable to use high-modulus and high-strength glass (CM) or organic (synthetic) fibers (Fig. 2). Concentric strip 12, installed in the area of the poles of the rotor 1 and the stator (Fig. 3), compensate for the thickness of the missing coils in the area of the poles and ensure the preservation of the mechanical strength of the rotor, the stator and the fibrous structure of the slot portion in case the ke is low due to the load distribution over the cross section of the groove and the absence of her summation over the whole cross section of the coil when it is traditional in a tightly Packed coils, transferring the load to each other. This principle of design of the coil was mechanically tested on the model and confirmed the validity of such proposals. Thus, achieves the required mechanical strength of the rotor and stator and substantially increases the shock pulse power generator.The sources of information.1. RF patent N 934888, H 03 K 3/00, Appl. 17.03.80, publ. BI N 30, 19832. M. Bystrov and others, Rotary compression generator Reports the second all-Union conference on engineering problems of fusion reactors. Leningrad, gkae the USSR, NIIEFA them. D. C. Ephraim, 1982, volume III, S. 39-46 (prototype).3. Structural materials. The Handbook. Under the General editorship of B. N. Arzamasova. Publishing Engineering. M. 1990 1. Rotary pulse generator containing a rotor and a stator, the slots are coil-bound with bandages education explicit poles, made in layers of electrical conductor separated by electrical insulation between the turns and layers, characterized in that the turns of the coils of the rotor and the stator is made of a conductor rhombic cross-section and are located in a layer with a pitch between the centers of the conductor turns, n is owino step, in the first layer of coils between the groove wall and the coils and in the last layer between the coils and the outer brace installed liners, the shape of the gap between the coils and behind the coils on the magnitude of the insulating layer is made of fibers laid in a formed curved between layers.2. Rotary pulse generator under item 1, characterized in that in the area of rotor poles and stator concentrically mounted strip attached in this zone, respectively, to the rotor and the stator with a total thickness equal to the difference between the total thickness of the coils with electrical insulation and the thickness of the insulating layers of the fiber.
FIELD: electrical engineering; electric motor and generator manufacture.
SUBSTANCE: motor-generator has stator and rotor disks and frame; stator disks mount coils and rotor disks, permanent magnets. Stator is longitudinally divided into two parts; stator disks are also divided minimum into two parts, and rotor is installed in one of stator parts after half of stator disks are installed therein; after that other stator part is installed, and stator is fully assembled and secured within frame together with rotor.
EFFECT: simplified design and reduced cost, facilitated assembly and repairs of machine, provision for interchangeability of structural components.
4 cl, 3 dwg
FIELD: electric engineering, in particular, engineering of noncontact electric engines, meant for use in industry as electric drives for mechanisms of large and average power, powered by one-phased alternating current network, transforming electric energy to mechanical energy, for example, at electrified railroads in electric trains, electric transportation means.
SUBSTANCE: one-phased electric engine based on alternating current contains immovable cylinder-shaped portion in form of stator, within hollow of which shaft is positioned, mounted on bearings of end lids, with rotor held thereon, packets of insulated electro-technical steel sheets, while on internal surface of stator evenly around its circle contour two rows of electromagnetic poles are held, mounted inclined at a tangent to rotor circle in opposite direction of its rotation, while rows of electromagnetic poles are shifted relatively to each other along stator circle for half of step, equal to half the distance between electromagnetic poles, also, engine is provided with control disk, held on shaft of rotor, along circle of which in its grooves packets of insulated electro-technical steel sheets are evenly held, entering recess of control transformers, number of packets corresponding to amount of active parts of rotor and number of electromagnetic poles of stator, while packets on control disk are positioned symmetrically to active parts of rotor with possibility of their synchronous rotation.
EFFECT: simplified constructions of engine with simultaneous increase of efficiency coefficient and increase of spinning momentum.
3 cl, 8 dwg
FIELD: electrical engineering; commutation improvement for ripple-current commutator machines.
SUBSTANCE: proposed ripple-current motor incorporating commutation improvement device is supplied with power from uncontrolled single-phase full-wave rectifier. Main-pole field winding is series-connected to armature circuit and commutating-pole winding, to DC amplifier. The latter is controlled by signal proportional to armature current supplied from metering shunt through scaling amplifier to low- and high-pass filters. Low-pass filter separates DC component from signal and high-pass filter separates AC component therefrom. AC component is supplied to phase controller providing phase control in the range of 0 to π. Signal DC component is summed up across amplifier with AC component corrected in phase. Summing amplifier has independent gain controls for channels of both components; control signal is generated at its output and corrected in piecewise-linear approximation unit including saturation of commutating-pole magnetic circuit; then this signal arrives at DC amplifier feeding commutating-pole winding.
EFFECT: enhanced commutating power of machine for various operating and brush-contact conditions.
1 cl, 1 dwg
SUBSTANCE: contactless generator of direct current contains an anchor with a print winding and a rotor, divided by dual air-gap clearances. Adjoining with the external edge to the internal wall of the cylindrical and magnetic case in its middle part the anchor is executed fixed in the form of a circular ring, whose print winding is located on the upper and lower sectors. The rotor is executed in the form of the toroidal solenoid divided along its diameter in two halves, which are electromagnets of excitation. Their opposite poles will be maintain at small distances from each other for the free passage between them of the active wires of armature coils densely clamped between two bars of the shaft. It is general and for the rotor of the special activator with a fixed stator, the armature coil which is electrically connected to the coils of two halves of the toroidal solenoid. The magnetic field of the toroidal solenoids with an electric current exists only inside their bodies and in the clearances between the magnetic poles of their halves. And in their nearest surroundings it is absent Polarity of magnetic poles of half of the toroidal solenoids varies when they are outside the zone of the active parts of the armature coils.
EFFECT: simplification in the design; increase in the reliability and the disuse of semi-conductor devices
SUBSTANCE: in switching method for excitation of parametric resonance and device for its realisation by excitation of parametric resonance of electric oscillations by switching method, reactive electric power is generated. This event is realised in reactive electric power generator (REPG). Additional inductance coil or capacitor with a certain nominal value of inductance or capacitance versus similar elements of the main circuit is connected in parallel to oscillating circuit at certain moments of time in specified mode with the help of thyristors. It makes it possible to vary circuit parametres (inductance, capacitance, frequency of oscillations, wave resistance) in process of each oscillation, according to algorithm of variation of control voltage sent to thyristors from separate pulse generator (PG) and thus to achieve parametric resonance without functional link of current and voltage amplitudes in circuit with value of control voltage. Stationary amplitude of parametric oscillations is provided with the help of stabilitrons with shunting resistors connected parallel to circuit, which, passing through itself a part of charge that participates in process of oscillation and scattering excessive reactive power, thus, amplitudes of current and voltage are limited within the limits required for circuit serviceability. Functioning of PG is carried out by part of output power of REPG, which provides for complete independence of REPG as source of power supply.
EFFECT: simplification and reduction of cost.
2 cl, 7 dwg
SUBSTANCE: invention relates to electric engineering and can be used as a DC generator or an angular velocity sensor of a rotation axis in a mechanical device. The generator consists of a rotating rotor with a rotation axis and a stationary stator. The rotor consists of an annular tube from nonmagnetic material fixed axisymmetrically by cross members with the rotation axis, with toroidal winding evenly (for example, turn to turn) wound on the annular tube with the outputs of the latter being connected to sliding contacts set on the rotation axis. The stator is a hollow cylindrical permanent magnet with a longitudinal cut in the plane of the cross member location, its magnetic poles are placed at its ends. The said annular tube with toroidal winding is rotating inside the hollow cylindrical permanent magnet and the rotation of the rotor rotation axis is actuated by the motor.
EFFECT: improved reliability; modification of the generator consists in the join setting of the group of pairs "rotor-stator" on the same rotation axis at serial or parallel as well as at the combined coupling of the outputs of each of the solenoids of each pair, thus allowing for the increase of total power of the generated current.
SUBSTANCE: brushless two-rotor direct current motor comprises rotating magnetised deperm rotors with actuating coils and fixed toroid stator with operating winding on it. The actuating coils are fixed at the stator. The rotors are placed by like magnetic poles respectively from the side of inner and outer surfaces of the toroid stator thud forming two cylindrical magnet gaps, inside these gaps there are non-magnet cylinders adjoining the toroid stator and the operating coil of the toroid stator is wound on the above non-magnet cylinders while its turns pass through openings in the toroid stator. The respective half-turns of the operating coil are placed in direct vicinity from cylindrical surfaces of the rotating rotors. The actuating coils of the rotors and the operating coil are connected in series or in parallel to the direct current source. Two independent magnet circuits formed by the rotors and toroid stator are closed through magnetically conductive washers coupled magnetically to the rotors and fixed to magnetically conductive walls of the stator with minimum permitted gaps. Thickness of walls of the non-magnet cylinders is selected so that it is five-ten times bigger than the gap between conductors of the working winding and cylindrical surfaces of the rotors.
EFFECT: increasing energy efficiency, reliability and durability.
SUBSTANCE: invention refers to electrical engineering, namely to direct-current electric machines, an armature winding of which is ring-type, whereas a magnetic core consists of laminated steel ring stacking closed to the external diameter by an outer magnetic core, provided with long non-magnetic insertions around the circumference and separated by non-magnetic annuli. An inductor magnetic core consists of laminated steel profile stacking displaced at an electric pulse angle equal to a quotient obtained when a pulse width is divided by a quantity of inductor stacking, and separated by non-magnetic annuli. Inductor winding generates a similarly polar magnetic field. An air gap with a periodically variable value is provided along the length of each polar pitch according to the law of magnetic flow transition inducing one-polar pulses of single-phase electromotive force at each polar pitch in the armature winding.
EFFECT: creating a slider-free direct-current electric machine.
FIELD: electrical and electromechanical engineering; rotors of large electrical machines such as turboalternators.
SUBSTANCE: proposed electrical machine rotor has heavy wound core whose winding coils are secured in end portions in radial direction by means of heavy metal banding rings fitted with one end on butt-end portions of core and with other end, on cylindrical surfaces of Z-section alignment rings; inner surface of alignment rings are joined with end portions of rotor shaft, two rows of slits being made in vicinity of mentioned rotor-shaft or banding-rind junction surfaces of each alignment ring uniformly and tangentially disposed over circumference of the latter in relatively staggered manner. One row of mentioned slits can be made in mentioned zones within alignment ring and other row, on rotor shaft surface jointed to alignment ring, for instance in the form of cooling ducts.
EFFECT: enhanced reliability due to additional reduction of alternate stress in zone where banding rings are fitted on rotor core.
1 cl, 2 dwg
FIELD: electric engineering and electro-mechanical industry, in particular, features of design of coils with salient poles for rectangular stators of salient-pole electric machine.
SUBSTANCE: in the coil for magnetic system of stator of salient-pole electric machine with rectangular poles, made by winding of flat rectangular cross-section bus onto narrow rib and containing elements of body and coil isolation with monolithic realization of working part of coil, in accordance to invention, on frontal parts of coil air gaps are provided between coils, expanding in wedge-like fashion in axial direction from the end of magnetic-duct of pole, in gaps between coils in longitudinal symmetry plane of coil distant inserts are installed made of solid isolating material with shape and dimensions, corresponding to gaps between coils in this plane, and with width substantially lesser than width of pole, connected by gluing to surfaces of adjacent coils, a packet of structural elements, consisting of frontal parts of coil rings and distant inserts between them, is fastened in longitudinal symmetry plane of the coil by bandage of non electro-conductive material, resistant to stretching, aforementioned inserts being of orthogonally symmetric H-like form with height of bar, equal to width of bus, and with common height, exceeding it by double bandage thickness, aforementioned bandage being positioned between shelves formed by aforementioned method. Due to such characteristic feature, all four sides of rectangular cross-section of each conductor within limits of frontal part of coil form surfaces, directly cooled by blowing air or liquid, correspondingly to scheme of theoretically full usage of external surface of conductors for their cooling.
EFFECT: increased efficiency of electric machine, increased density of current in windings, resulting in improved mass-dimensional characteristics of electric machine, decreased temperature of windings, and, thus, increased lifetime of isolation, allowing to use isolation of lesser heat resistance which is therefore cheaper or more technologically accessible.
8 cl, 10 dwg
FIELD: electro-mechanical engineering.
SUBSTANCE: bandage of electric machine anchor winding is made in form of continuous solid coiling, coil to coil, in a layer of isolated wire of magnetic or non-magnetic material at whole axial length of bandage section of winding, which does not have other means of radial attachment. The bandage contains even number of wire layers with a lock of beginning and end of coiling on one of end sides. Below each single or double layer of wire, an insert ribbon is positioned which envelopes the anchor surface being bandaged in one layer and which is made of non electro-conductive reinforced material containing axially oriented direct threads rigid to stretching. Aforementioned insert ribbon is provided with collar stops on external surfaces along end edges. Collar stops are longitudinally reinforced with wire or non-metallic filaments rigid to stretching. Axial distance between their internal stopping surfaces is equal to axial size of surface being bandaged.
EFFECT: simplified construction, ensured maximal technically possible reduction of losses to vortex currents, ensured stable reliability.
4 cl, 8 dwg
FIELD: engines and pumps.
SUBSTANCE: invention relates to perfection of borehole generators, particularly, to support and limitation of displacement of stator coils arranged in the engine housing. Borehole motor has tubular housing elongated in lengthwise direction, stator part arranged therein, stator coil winding looped back in the stator by end turn with tip. It comprises connector to connect at least one of coil windings and housing end abutting on stator part end to support the winding.
EFFECT: fastening of stator coils not coated with lacquer inside motor housing.
17 cl, 5 dwg