The pulse generator on inductive energy storage

 

(57) Abstract:

The pulse generator on inductive energy storage refers to the pulse technique and can be used to power pulsed electron beam accelerators, sources of x-ray and neutron radiation, lasers, as well as for surface treatment of various materials. The pulse generator on inductive energy storage device includes a synchronous pulse generator sections of the primary winding of the transformer, a core material with a narrow loop of the magnetization-driven breakers, sections of the secondary winding of the transformer, inductive energy storage unmanaged discharger, the load controlled dischargers, managed switches, capacitors, power Converter, the control unit. Achievable technical result is to increase the efficiency of energy transfer from the inductive storage in the load. 1 Il.

The invention relates to a pulse technique and can be used to power pulsed electron beam accelerators, sources of x-ray and neutron radiation, lasers, as well as for surface treatment of various materials.

The main and most three power 1010- 1012W) with inductive energy is creating a powerful NC switching equipment.

From the prior art known to the pulse generator for inductive energy storage, which is arc-free switching output energy from the inductive energy storage (Physics and technology of high-power pulsed systems. Sat. articles Ed. by Acad. E. P. Velikhov, M., "Energoatomizdat", 1987, [1], S. 111). Known generator includes a power source, an inductive energy storage device, a diode, a load, a controlled circuit breaker, power supply, managed key and the control unit, and an ungrounded output of the power source through the inductive energy storage device is connected with the positive output of the diode and the first output of the controlled key, and the negative output of the diode connected to the ungrounded conclusions load and a managed switch, and the second output of the key is connected to the ungrounded negative terminal of the additional power source, which is made in the form of a capacitive storage device. The outputs of the control unit connected to control inputs of the switch and isolator.

A disadvantage of the known pulse generator for inductive known generator is the presence of two power sources.

Also known pulse generator for inductive energy storage (see [1], S. 108-109), taken as a prototype, containing a power source, ungrounded output through which the inductive energy storage device is connected to the input windings placed on the core from a material with a narrow rectangular loop of magnetization, and the first output control key, while the second output winding connected to the ungrounded conclusions load and a managed switch, and the second output of the key is connected with the negative output additional power source. The generator also includes a control unit.

The disadvantage of this pulse generator is that you will need to use two power source. In addition, the known device does not provide vysokoeffektivnoi energy transfer from the drive to the load, because the switching is synchronized with the "pause current" in razminaem chain does not disconnect the power source from the load and drive while transferring energy to the load.

The present invention is directed to the solution of the technical problem to improve the efficiency of energy transfer from the inductive storage ptx2">

The problem is solved by the fact that the pulse generator to the inductive energy storage, containing a power source, an inductive energy storage device, the first controlled switch, the first managed key primary winding placed on the core from a material with a narrow rectangular loop of magnetization, and the control unit according to the invention, further comprises an energy Converter, unmanaged discharger, the secondary winding is made of m series-connected sections and connected in opposite primary winding of n sections, n - 1 managed breakers, n managed arresters of the first group, n + m managed arresters second group, n+m-1 managed keys and n+m capacitors, and power supply made in the form of a synchronous generator of voltage pulses, ungrounded output of which through the first controlled switch is connected to the input of the first section of the primary winding, the output of the i-th section, i=1,2,...n-1, the primary winding is connected through the (i+1)-th managed switch with input (i+1) th sections of the primary winding, and with the ungrounded output of the i-th controlled spark gap of the first group managed arresters and with the first output of the i-th control the pout group managed arresters, with the first output of the n-th managed key, and output the first section of the secondary winding, the input of each section of the secondary winding is connected to the first output of the corresponding managed key, starting with the (n+1)-th to (n+m)-m log m-th section of the secondary winding is connected with the ungrounded output of the inductive energy storage, and through unmanaged discharger with ungrounded output load, a second output of each of the managed key connected with the corresponding input of the control unit, with the ungrounded output of the corresponding capacitor, and through the corresponding controlled discharger second group managed arresters - with the input of the power Converter, the output of which is connected to control inputs of managed breakers, the first output control unit connected with the control input of the synchronous generator of voltage pulses, the second and third outputs of the control unit connected to control inputs controlled dischargers, respectively, the first and second groups of control gaps, and the remaining n+m outputs a control unit connected with the control input of the corresponding managed key.

This embodiment of the generator impulsora due, first, not speed, and pulse changes the magnitude of the inductive reactance of the circuit that is in parallel with the load circuit, and secondly, due to the high multiplicity of the changes induced drag switched circuit: 104- 105time, and third, by reducing to (1-5) 106since the time of switching the pump current of the inductive energy storage to the load. The above technical result is achieved when using only one energy source - synchronous pulse generator voltage, which is an undeniable advantage of this invention over the known devices of the same purpose. In other words, the proposed implementation of two-winding transformer provides not only set the initial mode of operation of the transformer (the magnetization of the core material with a narrow loop of magnetization in a given direction), but the accumulation of energy required to trigger a powerful managed breakers.

The present invention is illustrated by a specific example, which, however, is not only possible, but clearly demonstrates the possibility of achieving a set of essential features is law on inductive energy storage.

The pulse generator on inductive energy storage contains the synchronous generator 1 pulse voltage, inductive drive 2 energy unmanaged discharger 3, load 4, the inverter 5 energy, the control block 6 and the transformer 7 core 8 made of a material with a narrow rectangular loop of magnetization and two partitioned windings having the same number of turns. The primary winding of the transformer 7 includes n sections 91, 92, ..., 9nand the secondary winding of the transformer 7-m series-connected between a section 101, 102,...., 10mwhile n is in General not equal to m.

Ungrounded output of the generator 1 is connected to the input of the first section 91the primary winding of the transformer 7 through the first controlled circuit breaker 111. The output section 91the primary winding of the transformer 7 is connected to the ungrounded output of the first controlled discharger 121the first group managed arresters, in addition, the first output of the first managed key 131and through the second controlled circuit breaker 112with the entrance section 92the primary winding of the transformer 7. The output section 92connected with netgo, with the first output of the second controlled key 132and through the third controlled switch 113with the entrance of the third section of the primary winding of the transformer 7. The other sections of the primary winding of the transformer 7 is connected similarly between themselves and with the relevant managed dischargers (123,... 12n-1) the first group managed arresters and managed keys (133,..., 13p-1).

The output of the n-th section 9nthe primary winding of the transformer 7 is connected to the ungrounded output of the n-th controlled discharger 12nthe first group managed arresters, in addition, the first output of the n-th managed key 13nand with the release of the first section 101the secondary winding of the transformer 7. Thus, the primary and secondary winding of the transformer 7 includes a counter. The entrance to the first section 101the secondary winding of the transformer 7 is connected with the first output (n+1)-th managed key 13n+1. The input of the second section 102connected with the first output (n+2)-th managed key 13n+2and so on

The second output of each of the managed key (131, 132,..., 13n, 131+1,... 13m+n) connected with the respective input unit 6 at then+mthe second group managed arresters connected to the input of the Converter 5 energy, the output of which is connected to control inputs of managed breakers 111, 112, . .., 11n. In addition, the second output of each of the managed key (131, 132,...,13n+m) connected to the ungrounded output of the corresponding capacitor 151, 152,..., 15n, 15n+1,... 15n+m.

The first output of the control block 6 is connected with the control input of the synchronous pulse generator, the second output of the control block 6 is connected to control inputs of managed arresters (141,..., 14n+mthe second group managed arresters, and the third output of the control block 6 is connected to control inputs of managed arresters (121,..., 12n) the first group managed arresters. The remaining n+m outputs of the control block 6 is connected with the control input of the corresponding managed key: 131, 132,..., 13n, 13n+1,..., 13n+m.

The input of the m-th section 10mthe secondary winding of the transformer 7 is connected with the ungrounded output of the inductive storage 2 energy, and through unmanaged discharger 3 is connected to the ungrounded output Naga is the elemental base. In a preferred embodiment, the control block 6 is made on the basis of the processor. In the simplest case, the control block 6 contains n+m measures the rate of change in voltage, the outputs of which forms a control signal at a voltage change of the setpoint. The inputs of the meter are input unit 6 controls and their outputs - outputs of the control block 6, starting from the fourth to the (n+m+3)-m Block 6 control also includes a command block, the first, second and third outputs of which are the respective outputs of the control block 6, and the information input of the command block is connected to (n+m+3-m output unit 6 of the control.

The Converter 5 is designed to convert the energy stored in the capacitors 151-15n+min the energy necessary for operation of the managed breakers (111- 11n). Thus, with the use of superconducting breakers, using a Converter 5 converts the energy stored in the capacitors (151- 15n+min the energy of the magnetic field or the energy of the laser radiation required for simultaneous destruction of the superconducting state breakers (Y. D. Kuroyedov, Powerful sverkhprovodyashchie to be used either mechanical breakers, if the pumping time of the order of seconds or semiconductor switches, if the pumping time of the order of milliseconds.

Section 91- 9nthe primary winding of the transformer 7, section 101- 10mthe secondary winding of the transformer 7 in conjunction with the capacitors 151- 15n+mform (n+m) - tier LC lowpass filter, which is essentially an artificial long line or delay line. As timeowave propagation from the beginning to the end of the long line is determined by the expression of the desired number of partitions, and the inductance L of each section is determined by calculation in each case. If n=m, the long line is uniform. In some cases it is advisable that the time of propagation of the wave on the primary and secondary windings of the transformer have been different. In this case, n m.

The pulse generator on inductive energy storage works as follows.

In the initial state managed breakers (111- 11n) are closed, managed keys (131- 13n+m) is also closed, and control signals to the controlled dischargers first (121- 12n) and second (14

On the command "start" on the first output of the control block 6 is formed control signal which is supplied to the control input of the synchronous generator 1 pulse voltage and launches it. As a result, the output of the generator 1 is formed by a voltage pulse which is fed to the input of the delay line formed by sections 91- 9nthe primary winding and sections 101- 10mthe secondary winding of the transformer 7 in conjunction with the capacitors 151- 15n+mwhile the pulse duration of the voltage more than 102once more timeowave propagation in the delay line. In the initial moment of time the current in the inductive drive 2 energy is zero, so that almost all the output voltage of the synchronous generator 1 pulse is applied to windings of the transformer 7, in other words, the delay line. In the process of wave propagation in the delay line is charging the capacitors 151- 15n+mand the magnetization of the core 8 of the transformer 7 to saturation, the flow f of the magnetic field in the core 8 will be determined by the expression

< / BR>
where U(t) is the voltage drop across the delay line during the wave propagation along the line zaderjkami 151- 15n+m. At the same time (due to the counter enable winding of the transformer 7) the resultant magnetic field in the core 8 at t >ohas a value close to the value of the magnetic field strength corresponding to the beginning of the breaking of the magnetization curve.

When charging the capacitors 151- 15n+mthe input unit 6 of the control signals corresponding to the magnitude of the voltage on them. In block 6 of the control is the measurement of the rate of change of voltage on each capacitor 151- 15n+m. As charging the capacitor 151- 15n+mthe rate of change of voltage on them decreases (approaches zero). Upon reaching the speed of change of the voltage on each capacitor preset value, for example corresponding to the charging of capacitor 99% of the set value of the voltage on the corresponding output (from 4 to 3+n+m) of the control block 6 is formed a control signal to actuate (open) the corresponding managed key (131- 13n+m). As the wave delay lines are switched off sequentially inspired capacitors 151- 15n+mfrom the windings of the transformer 7.m at the same time is permissive to perform unit 6 controls the following items laid in it.

Then the current in the circuit continues to increase and is pumped inductive drive 2 energy, while the core 8 of the transformer 7 is in a saturated state with a magnetic permeabilityn= 2-7. When the current in the circuit containing inductive drive 2 energy, the maximum value (due to the high repeatability of the output parameters of the generator 1 is through the same period of time after the command "start"), on the second and third outputs of the control block 6 sequentially generated control signals, which are received respectively on the control inputs managed arresters 141- 14n+mthe second group managed arresters and control inputs controlled dischargers 121- 12nthe first group managed arresters.

In the simultaneous actuation managed arresters 141- 14n+mthe second group managed arresters, all stored in the capacitors 151- 15n+menergy is fed to the input of the inverter 5 energy where it is converted to either the pulse is of managed breakers 111- 11n. If another run of breakers 111- 11nConverter 5 energy should be the signal for their operation.

When triggered, managed breakers 111- 11nsection 91- 9nthe primary winding of the transformer 7 are isolated from each other, and when triggered, managed arresters 121- 12nthe first group - the ends of the sections 91- 9nand the end of the section 101secondary winding earthed. It should be noted here that in the process of setting sets the delay time between control pulses on the first and second outputs of the control block 6 such that actuation managed breakers 111- 11nand managed arresters 121- 12nthe first group managed arresters occurred simultaneously.

As a result of triggering managed breakers 111- 11nand managed arresters 121- 12ncurrent sections 91- 9nfalls rapidly to zero. Since the current in the inductive drive 2 energy cannot change instantaneously, the current in the secondary winding of the transformer 7 (connected in series /SUB> - 9nwill lead to the fact that the direction of magnetization of the core 8 of the transformer 7 is now determined by the direction of the current in the secondary winding. Since the direction of the magnetic field created by the current in the primary winding, is in the opposite direction of the magnetic field created by the current in the secondary winding, then under the action of current flowing through the secondary winding of the transformer 7, there will be alternating magnetization of the core 8. The magnetization switching the inductance of the secondary winding (phase circuit is in parallel with the load) increaseso/nagain, whereo~ 105dynamic magnetic permeability of the core 8 in the unsaturated state. On the other hand, the change of reactance in the circuit of the inductive storage 2 energy during the alternating magnetization of the core 8 causes a jump of the potential at the connection point of the drive 2 energy and unmanaged discharger 3. The result is the breakdown of a spark gap and switching the pump current of the inductive storage 2 energy to the load 4 during the time it is alternating magnetization of the core 8. Here it should be noted that the jump is the difference between the sweat is UB>1- 11nas the number of turns in sections 91- 9nless than the total number of turns in the secondary winding of the transformer 7.

After reaching the magnetic field intensity value corresponding to the bend of the magnetization curve of the core 8 in the other direction of its magnetization inductance of the secondary winding of the transformer 7 is again reduced to the value corresponding to the magnetic permeability of the coren.

Insulation sections 91- 9nfrom each other and ground their ends and also provides increased n times the speed of magnetization reversal of core 8 (i.e., reducing the switching time of the pump current to the load), which leads not only to more efficient transfer of energy from the inductive storage 2 energy in the load 4, but also provides a large jump in potential difference at the secondary winding of the transformer 7, and therefore, reliable actuation unmanaged discharger 3.

Indeed, as a result of triggering managed breakers 111- 11nand managed arresters 121- 12nthe currents in each partition 91- 9nequal and decrease by the same law. Od the magnetomotive force F is described by the expression

< / BR>
where W is the number of turns in each section 91- 9n,

Fi(t) the time dependence of the current in the 9isection, j = 1,...,n,

n is the number of sections of the primary winding.

The increase in the rate of change of current in the secondary winding of the transformer 7 leads to a larger value of the EMF of self-induction.

The invention can be used to create power sources for pulsed electron beam accelerators, for sources of electromagnetic and neutron irradiation, as well as in installations for surface treatment of various materials.

The pulse generator on inductive energy storage, containing a power source, an inductive energy storage device, the load, the first controlled switch, the first managed key primary winding placed on the core from a material with a narrow rectangular loop of magnetization, and a control unit, characterized in that it further comprises an energy Converter, unmanaged discharger, the secondary winding is made of m series-connected sections and connected in opposite primary winding of n sections, n - 1 managed breakers, n managed arresters of the first group, n + I is made in the form of a synchronous generator of voltage pulses, ungrounded output of which through the first controlled switch is connected to the input of the first section of the primary winding, the output of the i-th section, where i = 1, 2, ..., n - 1, the primary winding is connected through the (i + 1)-th managed switch with input (i + 1)-th section of the primary winding, and with the ungrounded output of the i-th controlled spark gap of the first group managed arresters and with the first output of the i-th managed key the output of the n-th section of the primary winding is connected to the ungrounded output of the n-th controlled spark gap of the first group managed arresters, with the first output of the n-th managed key, and output the first section of the secondary winding, the input of each section of the secondary winding is connected to the first output of the corresponding managed key, starting with the (n + 1)-th to (n + m)-m log m-th section of the secondary winding is connected with the ungrounded output of the inductive energy storage, and through unmanaged discharger with ungrounded output load, the second output of each of the managed key connected with the corresponding input of the control unit, with the ungrounded output of the corresponding capacitor, and through the corresponding controlled discharger second group managed arresters with whom and the first output control unit connected with the control input of the synchronous generator of voltage pulses, the second and third outputs of the control unit connected to control inputs controlled dischargers, respectively, the first and second groups of control gaps, and the remaining n + m outputs a control unit connected with the control input of the corresponding managed key.

 

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