A device for receiving and converting electromagnetic energy impulse
(57) Abstract:The device is intended for use in high-power pulsed source of electromagnetic energy, based on the effect of the magnetic cumulation of energy, as well as in the coordination of such sources to the load. In the device elements in the magnetic flux compression generator and transformer are made and are as follows. Primary and secondary winding of the transformer and the conductors are coaxially aligned above the elements of the generator. The primary winding is located between the outer secondary and conductors, which in turn is made in the form of a set of insulated conductors located along the axis of the primary winding of the transformer. The invention provides increased efficiency and reduced size. 1 C.p. f-crystals, 1 Il. The invention relates to the field of high-power pulsed source of electromagnetic energy, based on the effect of the accumulation of magnetic energy. Magnetic flux compression generators (MCG) promising as sources of powerful pulses of electromagnetic energy. With the direct inclusion of the load in the circuit ΜG its effective operation is possible only when nalozeni the imposition of a step-up transformer in this case the load connected to the secondary winding, and UG - primary.A device for receiving and converting electromagnetic energy impulse (Bukharov C. F. and others "magnetic flux compression generators, transformer output energy", J. "Journal of applied mechanics and technical physics," J. Appl No. 1, 1982, pages 4-10, Fig. 2). The device is made in two separate blocks (block MCG and transformer node) connected with ensuring a reliable contact. The ICG consists of a Central conductor with an explosive charge (CC) and the spiral conductor. Transformer site consists of four cylindrical transformer 32-winding secondary winding located inside the primary coil. MCG is attached to the transformer unit through two current-carrying square plates (conductors) separated by an insulator, each side of which is connected transformer wound cable. The initial energy from the capacitor Bank is fed to the spiral and the center conductor from the input end of the IAG and the load connected to the secondary winding of the transformer.This device has a large size due to the transformer that connects to o is transformatora and diameter of the helical outer conductor UG (~9:1). This limits the use of the known device, where the dimensions are essential.Closest to the claimed is a device for receiving and converting electromagnetic energy impulse (A. I. Pavlovsky, etc. "Cascade system with a small generator UG" paper presented at the VI International conference on the generation of megagauss magnetic fields and related experiments", USA, Albuquerque, 92,, collection of papers of part II, page 631, Fig. 1). The device comprises a magnetic flux compression generator, comprising a coaxial Central conductor with an explosive charge and a spiral conductor, a transformer including primary and secondary windings and conductors. One end of the primary winding of the transformer is connected at the output end of the IAG with the Central conductor and the second end of the via conductors - spiral conductor UG.Transformer site as well as analogue, is a continuation of the overall design and is located behind the generator is a separate unit. The primary and secondary windings are made coaxial. The primary winding is located on the secondary winding. The transformer referred from MKG to not less than an amount equal to Z=0.2 to D, where D is the diameter of penetrator at the transformer site. Conductors are made in two parts. The first part is the length, which includes the transformer from the generator. The second part is located above the primary winding. I.e., the transformer is designed so that the outside is the second part of the conductors, the primary winding under it, and the secondary winding on the inner dielectric frame.The disadvantages of the prototype are also enlarged the size of the device due to the lengthening of the overall design and the reduction in the output power due to parasitic inductance and losses of the magnetic flux transferred from the primary circuit into the secondary winding.This invention solved the problem of obtaining a powerful pulse of electromagnetic energy and the negotiation parameters of the generator with the load parameters.The technical result for the solution of this task was to reduce the size and increase energy output.This technical result is achieved by the fact that in comparison with the known device for receiving and converting the pulse of electromagnetic energy containing magnetic flux compression generator, comprising a coaxial center conductor with the explosive charge and the spiral is th winding is connected at the output end of the IAG with the Central conductor, and the second via conductors spiral conductor, what is new is the fact that winding of the transformer and the conductors are coaxially aligned above the spiral conductor of the generator on the dielectric frame. The primary winding is located between the outer secondary winding and a current conducting wire, made in the form of a set of insulated conductors located along the axis of the primary winding. The direction of winding of the turns of the primary coil coincides with the direction of winding of the spiral conductor. In addition, the dielectric frame is made cavity, the open part facing the input end of the generator.When the location of the primary and secondary windings of the transformer and conductors coaxially aligned above the spiral conductor of the generator and the coincidence of the directions of winding of the turns of the primary winding and spiral conductor during the expansion of the Central tube under the action of the products of detonation of the explosive charge is the inductance of the primary winding is reduced. This leads to the increase of the ratio L10/L1Kwhere L10and L1Krespectively the start and end of the inductance circuit g, which in turn allows you to increase the input energy and the coefficient seleniums magnetic field of the transformer site. In this case, the braking of the Central conductor ΜG occurs in a magnetic field with a magnitude of tension greater than the value of the field strength of the spiral conductor. This leads to an increase of the selection of the kinetic energy of the center conductor in the magnetic field energy in the load. Execution of conductors in the form of a set of insulated conductors located along the axis of the primary winding of the transformer, does not hinder the penetration of the magnetic field from the primary winding to the secondary, does not affect the mutual induction between the primary winding and spiral guide UG and increases the output energy by reducing the length of the conductors and its inductance. This embodiment of the transformer windings and conductors and the location of these items on part (30% or more) the length of the generator and on a common axis substantially reduces the size of the device as a whole. The presence of a cavity made in the dielectric frame, allows you to save the transformer node from the failure of the shock wave in the scattering center conductor at least time work ΜG due to the fact that the pressure of the shock wave in the air is much weaker than the material of the frame.The drawing shows tawlae which contains the magnetic flux compression generator, including coaxial center conductor 1 with a charge of 2 explosives and spiral conductor 3. The transformer includes primary 4 and secondary winding 5, and the conductors 6. One end of the primary winding 4 is connected to the output end of the generator with the Central conductor 1 and the second end of the via conductors 6 spiral conductor 3. The windings 4 and 5 of the transformer and the conductors 6 are coaxially aligned above the spiral conductor of the generator on the dielectric frame 7. The primary winding 4 is located between the outer secondary winding 5 and the conductors 6. The conductors 6 are made in the form of a set of insulated conductors located along the axis of the primary winding 4 of the transformer. In the dielectric frame 7 is made of the cavity 8, the open part facing the input end of the generator. In addition, the source 9 of the initial energy is connected from the input end of the generator. The system is connected from the input end of the generator. The initiation system 10 is located on the explosive charge 2 from the input end of the generator. The load 11 is connected to the secondary winding 5 of the transformer.In the specific example the primary winding is made by one isolated wine diameter 466 mm The secondary winding has 25 turns, wound with insulated wire with a diameter of 20 mm, and is located directly on the primary winding. Conductors consists of 64 conductors, such as that used for winding the primary winding placed in the slots of the dielectric frame made along an axis forming on the diameter of 420 mm, the ends of the conductors are derived from the output end face and connected to the spiral conductor MCG. The dielectric frame is made from Styrofoam and epoxy compound. The cavity may be formed in the form of an annular groove and completed to a depth of ~250 mm as the primary source of energy for MCG used the capacitor Bank or other UG. System initiation is made in the form of the cap of the detonator located on the explosive charge from the input end of the generator. The center conductor ΜG made in the form of a pipe filled with EXPLOSIVES. The spiral conductor is coaxially aligned with the Central conductor. The elements of the transformer usually take ~45 - 65% of the length of the generator, and the ratio of the radii of the secondary winding of the transformer and the outer helical conductor MCG can vary from 1.8 to 2.5. The total length of the structure in the example to the TCI - 500 mm and an inner diameter of the spiral conductor 240 mmDoes the proposed device as follows. After powering current from the source 9 of the initial energy in the circuit ΜG creates a magnetic flux. After response initiation system 10 and the explosive charge 2 when the desired current value, the Central conductor 1 by action of the products of the explosion scatters in the form of a cone and is connected with a spiral conductor 3. From this moment begins the process of magnetic cumulation. Next, when the claimed running and the location of the transformer magnetic field spirals superimposed magnetic field of transformer site and braking of the Central conductor ΜG occurs in a magnetic field with a magnitude of tension greater than the value of the field strength of the spiral conductor. This leads to an increase of the selection of the kinetic energy of the center conductor in the magnetic field energy in the load.Thus, compared with the prototype in the inventive device it is possible to reduce dimensions of 1.5 times and increase output energy by 15%. 1. Device for receiving and converting the pulse of electromagnetic energy containing the magnetic flux compression gnic, a transformer comprising primary and secondary windings and conductors, and one end of the primary winding is connected to the output end of the generator with the Central conductor and the second via conductors - spiral conductor, characterized in that the winding of the transformer and the conductors is located coaxially above the spiral conductor of the generator on the dielectric frame, the primary winding is located between the outer secondary winding and a current conducting wire, made in the form of a set of insulated conductors located along the axis of the primary winding, the winding direction of coils which coincides with the direction of winding of the spiral conductor.2. The device under item 1, characterized in that the dielectric frame is made cavity, the open part facing the input end of the generator.
FIELD: electrical engineering; drive motors.
SUBSTANCE: proposed permanent-magnet motor has twin stator incorporating permanent magnets in the form of U-section solenoids disposed on inner surface of stator and two rotors, one per each permanent-magnet section, in the form of arched bars rigidly coupled with axis of revolution, as well as coupling and flywheel. Rotor magnet is attracted by stator solenoid due to interaction of unlike-polarity poles of stator and rotor magnets which turns rotor through definite angle until like-polarity poles of stator and rotor magnets are aligned. As rotor magnet end front along its running leaves dead zone, it is pushed out of stator magnet and ensures continuous rotary motion. When rotor passes through dead zone, its rotary motion is maintained by flywheel and dc machine running as motor supplied with power from storage battery that functions to help rotor pass through dead zone. Upon leaving dead zone rotor shaft load reduces and dc machine runs as generator. In his way electrical energy is recuperated and used for booster charge of storage battery.
EFFECT: enhanced power output and efficiency.
1 cl, 2 dwg
FIELD: electrical engineering; generation of extremely intensive magnetic fields by magnetic cumulation method.
SUBSTANCE: proposed method designed for manufacturing cylindrical shell with conductors disposed along generating line includes placement of insulated conductors on main cylindrical mandrel, its potting in curing compound, and post-curing mechanical treatment of shell. Insulated conductors are wound on additional T-shaped mandrel that has cylindrical part and base perpendicular to its axis; base carries longitudinal cleats with slits on its opposite ends for winding two conductor coils at a time. Coils are placed upon trimming on main cylindrical mandrel so that conductors are arranged along generating line of mandrel, this procedure being followed by removing fixation clamps from parts.
EFFECT: enlarged functional capabilities.
2 cl, 6 dwg
FIELD: electrical engineering; building up extremely intensive magnetic fields by magnetic cumulation method.
SUBSTANCE: proposed method for manufacturing cylindrical shell with conductors disposed along its generating line includes placement of insulated conductors on main cylindrical mandrel, its potting in curable compound, and mechanical post-curing treatment. Conductors are placed on additional cylindrical mandrel by tight spiral winding in one layer of conductors. Then two strips are attached by means of adhesive along generating line of mandrel in a spaced relation, and conductors are cut along space. Rectangular sheet obtained in the process is wound on main mandrel to form desired number of layers wherein conductors are disposed along mandrel generating line.
EFFECT: enlarged functional capabilities.
1 cl, 4 dwg
FIELD: using three-phase synchronous machines for power generation.
SUBSTANCE: proposed motor-generator set has three-phase synchronous motor and three-phase synchronous generator both mounted on common shaft excited by permanent magnets. Motor and generator rotors and stators are salient-pole components. Stator poles carry stator windings. Motor and generator stator poles measure 120 electrical degrees along rotor outer circumference. Motor and stator field permanent magnets are disposed on rotor backs between its poles. Flat compensating permanent magnets installed in center of generator rotor poles are disposed in panes crossing generator axis.
EFFECT: enhanced economic efficiency of power generation.
1 cl, 4 dwg
FIELD: conversion of explosive material chemical energy into electrical energy using magnetocumulative or explosion-magnetic generators for magnetic cumulation of energy.
SUBSTANCE: proposed magnetocumulative generator that depends for its operation on compression of magnetic flux and is designed for use in experimental physics as off-line pulsed energy supply, as well as in studying properties of materials exposed to super-intensive magnetic fields, in experiments with plasma chambers, acceleration of liners, and the like has permanent-magnet system. Spiral magnetocumulative generator is coaxially mounted inside system. Magnetocumulative generator has magnetic flux compression cavity. This cavity is confined by external coaxial spiral conductor and internal explosive-charge conductor, as well as by initiation system. The latter is disposed on one of butt-ends. Permanent-magnet system is assembled of at least one radially magnetized external magnet and axially magnetized internal magnet provided with axial hole. External magnet is disposed on external surface of magnetocumulative generator spiral conductor. Internal magnet is mounted at butt-end of spiral conductor on initiation system side, like poles of external and internal magnets facing magnetic flux compression cavity.
EFFECT: reduced leakage fluxes beyond magnetic-flux compression loop, enhanced initial energy in compression loop of spiral magnetocumulative generator.
2 cl, 2 dwg
FIELD: power engineering; power supply systems for various fields of national economy.
SUBSTANCE: proposed electrical energy generating unit has low-to-high voltage converter connected to external power supply that conveys its output voltage through diode to charging capacitor. Accumulated charge is periodically passed from capacitor through discharger to first inductance coil accommodating second inductance coil disposed coaxially therein and having greater turn number. Second coil is resonance-tuned to operating period of discharger. Voltage picked off this coil is transferred through diode to charging capacitor. Electrical energy is conveyed to power consumer by means of third inductance coil mounted coaxially with respect to two first ones. It is coupled with these coils by mutual inductance and is connected to rectifier.
EFFECT: enhanced efficiency.
1 cl, 1 dwg
FIELD: pulse equipment engineering, in particular, technology for magnetic accumulation of energy, related to problem of fast compression of magnetic flow by means of metallic casing, accelerated by air blast produced by detonation of explosive substance; technology for forming high voltage pulses, which can be used for powering high impedance loads, like, for example, electronic accelerators, lasers, plasma sources, UHF-devices, and the like.
SUBSTANCE: method for producing voltage pulse includes operations for creating starting magnetic flow, compressing it under effect from explosive substance charge explosion products in main hollow, output of magnetic flow into accumulating hollow and forming of pulse in load and, additionally, compression of magnetic flow is performed in accumulating hollow, forming of pulse is performed in additional forming hollow, and main, accumulating and forming hollows are filled with electro-durable gas. Device for realization of magnetic-cumulative method of voltage pulse production includes spiral magnetic-cumulative generator, having coaxial external spiral-shaped conductor and inner conductor with charge of explosive substance, the two forming between each other aforementioned main hollow for compressing magnetic flow, and also accumulating hollow and load. Device additionally has pulse forming hollow, positioned between additional hollow and load. Accumulating hollow is formed by additional spiral conductor, connected to spiral conductor of magnetic-cumulative generator and to portion of inner conductor. In accumulating hollow coaxially with inner conductor of magnetic-cumulative generator, ring-shaped conical dielectric element is positioned. All hollow are connected to system for pumping electric-durable gas. Ring-shaped conical dielectric element is made with outer cylindrical surface, adjacent to inner surface of additional spiral conductor, and to inner conical surface. Angle α between outer surface of portion of inner conductor, positioned in accumulating hollow, and inner surface of conical ring-shaped dielectric element is made in accordance to relation 7°≤α≤30°.
EFFECT: increased power, increased current pulse amplitude, shorter pulse duration, increased electric durability.
2 cl, 4 dwg
FIELD: explosive pulse engineering.
SUBSTANCE: proposed method for manufacturing spiral coil for magnetic explosion generator producing current pulses of mega-ampere level intended to obtain more densely wound coil of higher inductance and, hence, higher current gain of magnetic explosion generator includes winding of insulated conductors on mandrel, coil potting in compound, curing of the latter, and coil removal from mandrel. Round-section conductor is deformed prior to winding until its sectional area is enclosed by oval, then it is covered with insulation and wound so that small axis of oval is disposed in parallel with spiral coil axis.
EFFECT: improved performance characteristics of coil.
1 cl 2 dwg
FIELD: electric engineering, in particular, of equipment for transformation of heat energy, including that of the Sun, to electric energy.
SUBSTANCE: electric generator contains stator with stator winding and rotor positioned therein, made in form of piston; stator is provided with two vessels filled with gas, connected hermetically to each other via a hollow cylinder, which is made of material with high magnetic penetrability and having two limiters on the ends of cylinder, and piston is positioned inside aforementioned cylinder, made of magnetic-hard material and provided with piston rings, while stator winding is wound on cylinder and its ends are connected to load clamps.
EFFECT: provision of high efficiency.
FIELD: technology for transformation of chemical energy of explosive substance to electromagnetic energy.
SUBSTANCE: autonomous magnetic cumulative generator consists of spiral conductor, current-conductive liner with a charge of substance and initiation system, magnetic stream compression hollow, load and a system of permanent magnets, containing at least one magnet, positioned above spiral conductor with magnetization of parallel surface of spiral conductor, system of permanent magnets contains an additional magnet, positioned above spiral conductor on the side of load with magnetization of perpendicular surface of spiral conductor, while force lines of magnetic field of a system of magnets and in the compression hollow form a closed contour.
EFFECT: decreased dissipation flows beyond limits of magnetic flow compression contour and, as a result, increased starting energy in compression contour of magnetic cumulative generator.
1 cl, 7 dwg