CN208820517U - One kind being used for extensive Linear transformer driver tape jam charging unit - Google Patents

Abstract

The utility model discloses one kind to be used for extensive Linear transformer driver tape jam charging unit, it include: several fault detections and disconnecting switch, fault detection and disconnecting switch are provided between each LTD module and charge power supply in extensive Linear transformer driver, the fault detection and disconnecting switch include: isolating diode, disconnect switch, charging voltage and arging current detection component, solenoid valve, let out energy resistance, controller；When can occur switching self breakdown or capacitor insulation breakdown in extensive LTD device charging process, detect the LTD module where trouble unit, and the charge circuit being connected with the module is disconnected, make remaining LTD module can continue to complete charging process, to effectively improve the conventional efficient of device.

Description

One kind being used for extensive Linear transformer driver tape jam charging unit

Technical field

The utility model relates to technical field of pulse power, and in particular, to one kind is driven for extensive straight line transformer Dynamic source tape jam charging unit.

Background technique

Linear transformer driver (Linear Transformer Driver, LTD) is Russian high current electronics research A kind of novel pulse power technology of institute (HCEI) invention, core concept is: the biggish energy storage of capacity that tradition is used Capacitor " breaks the whole up into parts ", is divided into the lesser capacitor parallel connection of many capacity, and each capacitor configures independent switch, constitutes very much Basic discharge cell in parallel.Since the discharge cycle of each basic discharge cell is shorter, the arteries and veins of fast rise time can be directly generated Punching, does not need the pulse compression network of bulky complex necessary to traditional technology, thus energy efficiency is higher.It will be a certain number of Basic discharge cell parallel connection annular arrangement constitutes independent LTD module for generating biggish electric current.Typical LTD module is logical Cross multiple block coupled in series can in secondary in a manner of incuding superposition output HIGH voltage, constitute as shown in Figure 1.

LTD technology can directly generate fast rise time pulse, and its modularization and standardized designs are very beneficial on a large scale Using having become the next-generation large-scale most promising technological approaches of pulse power device design-build.For example, the U.S. Holy Land is sub- Laboratory (Sandia National Laboratory, SNL) starts to cooperate with HCEI for 2000, and the main project of research is Z The inertial fusion of constriction driving can (Z-IFE) plan.The technology path of the plan is to realize inertial confinement fusion using Z-pinch Igniting, long-term goal are to provide efficient, economic, clean commercial fusion power device.2013, SNL proposed Z300 simultaneously (output electric current 49MA) and Z800 (output electric current 64MA) device conceptual design, is designed for fusion igniting and fusion energy resource is ground Study carefully, two devices have been all made of fast pulse LTD technology.2018, the country also proposed the LTD driving source of output electric current about 50MA Device conceptual design.

The extensive LTD device of tens of MA is generally made of thousands of LTD modules in series and parallel, comprising tens of thousands of or even hundreds of thousands of Only switch and capacitor.Such as: Z300 is made of 2970 modules (including 5.94 ten thousand switches and 11.88 ten thousand capacitors), Z800 is made of 5400 modules (including 16.2 ten thousand switches and 32.4 ten thousand capacitors).So large-scale switch and capacitor Very likely there is a small amount of switch self breakdown or capacitor insulation punch-through during the charging process in device.Certainly with current switch Breakdown probability level (~10^-4) calculate, when each device charges, at least 6 and 16 switches can go out respectively by Z300 and Z800 Existing self breakdown failure.Although capacitor faults rate is horizontal to want lower, the capacitor of substantial amounts necessarily also occurs failure A possibility that.

Once there is switch self breakdown or capacitor breakdown during the charging process in current existing small-scale driving source device Failure, since Fault loop impedance is lower suddenly, charging current be increased dramatically, and charge power supply is past safely in order to protect itself device Protection operation is automatically powered off toward will do it, this means that this charging process fails.Encounter problems, most common method Charging operations are re-started after exactly charging system is resetted.Certainly, for certain permanent events for being unable to auto restore facility Barrier, then can just re-start charging operations after needing to overhaul failure.For driving for source device on a small scale, due to opening It closes and capacitors count is relatively fewer, the chance for occurring above-mentioned failure under same probability of malfunction is also less.But for advising greatly Mould driving source is based particularly on for the driving source of LTD, and switch and capacitors count are extremely huge, charges all may be used ninety-nine times out of a hundred Above-mentioned failure can be will appear, if not taking special measure or method, any experiment all will be unable to smoothly carry out.

In conclusion present inventor has found above-mentioned skill during realizing the application utility model technical solution Art at least has the following technical problems:

Extensive Linear transformer driver (Linear Transformer Driver, LTD) device generally comprises quantity Huge (~10⁴Even 10⁵) switch and capacitor, very likely occur individual or partial switch self breakdown during the charging process Or capacitor insulation punch-through.Since the basic discharge cell impedance of failure can reduce suddenly, lead to the fault discharge LTD module charging current where unit increased dramatically, and the charging current of remaining module will strongly reduce, so that greatly The charging process of scale driving source device can not continue, it is meant that the charging process of whole device fails.If Trouble ticket The also lasting charging of member, then being easy to cause the capacitor of the unit to explode because it concentrates consumption rechargeable energy.

Utility model content

The utility model provides one kind and is used for extensive Linear transformer driver tape jam charging unit, can be big When occurring switch self breakdown or capacitor insulation breakdown in scale LTD device charging process, the LTD where trouble unit is detected Module, and the charge circuit being connected with the module is disconnected, make remaining LTD module can continue to complete charging process, thus effectively Improve the conventional efficient of device.

To realize above-mentioned purpose of utility model, this application provides one kind for extensive Linear transformer driver band event Hinder charging unit, described device includes: each of several fault detections and disconnecting switch, extensive Linear transformer driver It is provided with fault detection and disconnecting switch between LTD module and charge power supply, charges in extensive Linear transformer driver In the process when some or multiple LTD modules break down, fault detection and disconnecting switch disconnect filling of being connected with malfunctioning module Electrical circuit makes remaining normal LTD module can continue to complete charging process, and the fault detection and disconnecting switch include: isolation Diode, disconnect switch, charging voltage and arging current detection component, solenoid valve, let out can resistance, controller etc.；For anode Property charging, isolating diode anode connect with charging high voltage input terminal, the contact A of isolating diode cathode and disconnect switch company It connects.It charges for negative polarity, isolating diode cathode is connect with charging high voltage input terminal, isolating diode anode and disconnect switch Contact A connection.The contact B of disconnect switch is connect with the one end for letting out energy resistance, lets out the other end ground connection of energy resistance；Charging voltage And arging current detection component cloth is placed between interlocking bar and LTD module；Charging voltage and arging current detection component and control Device connection, controller are connect with solenoid valve, and solenoid valve is connect with interlocking bar；In normal charging process, interlocking bar and contact A join It is logical, it is disconnected with contact B；Charging voltage and arging current detection component detect that LTD module there are when fault characteristic information, controls Device controls solenoid valve and disconnects interlocking bar and contact A, with contact B connection.

One or more technical solution provided by the present application, has at least the following technical effects or advantages:

When can occur switching self breakdown or capacitor insulation breakdown in extensive LTD device charging process, detect LTD module where trouble unit, and the charge circuit being connected with the module is disconnected, make remaining LTD module can continue to complete Charging process, to effectively improve the conventional efficient of device.

Detailed description of the invention

Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application Part does not constitute the restriction to the utility model embodiment；

Fig. 1 is multimode series connection LTD apparatus structure schematic diagram；

Fig. 2 is the multimode series connection LTD device charging structure schematic diagram with charge fault isolation；

Fig. 3 is fault detection and disconnecting switch structural schematic diagram.

Specific embodiment

In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have The utility model is further described in detail in body embodiment.It should be noted that in the case where not conflicting mutually, Feature in embodiments herein and embodiment can be combined with each other.

Many details are explained in the following description in order to fully understand the utility model, still, this is practical It is novel to be implemented using other different from the other modes being described herein in range, therefore, the protection of the utility model Range is not limited by the specific embodiments disclosed below.

In large-scale LTD device, each LTD module includes multiple switch and capacitor, and whole device is by large number of LTD module series and parallel composition, switch and capacitor comprising substantial amounts.According to current switch self breakdown probability level (~ 10^-4) calculate, charging ninety-nine times out of a hundred all can occur switching self breakdown failure, if not taking special measure or method, Ren Heshi Testing can not all carry out.

The utility model proposes the charge fault partition methods and device of a kind of module level, can fill in extensive LTD It sets in charging process when switch self breakdown occur or capacitor insulation punctures, is out of order by fault detection and disconnecting switch detection LTD module where unit, and disconnect the charge circuit that is connected with the module, make remaining module be able to maintain charge normal up to Charging process is completed, the conventional efficient of device is effectively improved.

It should be noted that energy will no longer contribute to whole device after malfunctioning module is isolated.But it is based on mesh Preceding switch self breakdown probability level (~10^-4), by taking Z300 and Z800 as an example, if there are 6 and 16 switches will appear respectively Self breakdown failure, and assume that breakdown switch is located at different LTD modules, that is to say, that there are 6 and 16 modules generals respectively It is isolated.So its energy 0.2% (6/2970) and 0.3% (16/5400) for only accounting for gross energy.The ratio is far smaller than physics The repeated deviation ratio (± 2%) of requirement of experiment, influence can be ignored.So take the charge fault of module level every From being selection more appropriate.

The utility model proposes a kind of charge fault isolating device of module level, Fig. 2 is that the LTD device of tape jam isolation fills Electric structural schematic diagram.A fault detection and disconnecting switch are respectively provided between each LTD module and charge power supply.If each mould Block is positive, negative polarity while charging, then positive and negative side needs each setting one, and the corresponding two failures inspection of same LTD module It surveys and disconnecting switch links.When switch self breakdown or capacitor insulation breakdown occurs in some inside modules in device charging process When, fault detection and disconnecting switch will quickly disconnect the charge circuit being connected with the malfunctioning module, enable remaining module after It is continuous to complete charging process.

Fig. 3 is fault detection and disconnecting switch structural schematic diagram.The high direct voltage that charge power supply provides from fault detection and The charging high voltage input terminal of disconnecting switch enters, respectively by isolating diode (prevent this module energy back transfer to other Module), after disconnect switch (being normally off when charging normal) and charging voltage, current detection component be in LTD module Capacitor charging.In normal charging process, interlocking bar and A point connection are disconnected with B point.When switch self breakdown occur in inside modules Or when capacitor insulation breakdown, charging voltage, current detection component are (such as: divider, high voltage probe；Current coil, Current differential coil, Hall current sensor etc.) just will detect that abnormal fault signature (such as: charging voltage reduce suddenly or Charging current increases suddenly), coherent detection data can be sent to controller and (generally comprise first device such as comparison circuit and relay Part), the comparison circuit in controller once finds fault characteristic signals, will issue instruction unpack relay rapidly, relay into One step controls solenoid valve and opens (or closing) gas circuit, and the cylinder piston rod linear motion controlled by gas circuit makes disconnect switch link Bar is moved to B point from A point and (on the one hand realizes that high pressure is electrically isolated with A point, on the other hand will be made in malfunctioning module by letting out energy resistance The energy of portion remnants is discharged on the ground), final realization malfunctioning module is isolated with charge power supply.Remaining without failure LTD Module is barely affected, and will keep charging normal until completing charging process.

The utility model proposes the charge fault isolating devices of module level, it is ensured that extensive Linear transformer driver dress Charging process can be continued to complete when setting a small amount of switch self breakdown of appearance or capacitor insulation breakdown fault, improves device experiment effect Rate.

The utility model devises fault detection and disconnecting switch, the LTD module being capable of detecting when where trouble unit, and The charge circuit being connected with the module is disconnected, remaining module is made to can continue to complete charging process.The system is also equipped with anti-simultaneously The function that only module energy flows backward and malfunctioning module residual amount of energy is released.Filling in fault detection and disconnecting switch in the application Piezoelectric voltage, current detection component are component in the prior art, can be detected to voltage and or current, controller Control mode is control mode common in the art, the voltage that can be detected according to charging voltage, current detection component Or current value is compared with threshold value, and then generates corresponding control instruction to control solenoid valve and interlocking bar, the control of controller Mode processed be it is existing, the utility model protection be device and switch composition and connection relationship.

Although the preferred embodiment of the utility model has been described, once a person skilled in the art knows basic Creative concept, then additional changes and modifications may be made to these embodiments.It is wrapped so the following claims are intended to be interpreted as It includes preferred embodiment and falls into all change and modification of the scope of the utility model.

Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.

Claims (2)

1. one kind is used for extensive Linear transformer driver tape jam charging unit, which is characterized in that if described device includes: Fault detection and disconnecting switch are done, is all provided between each LTD module and charge power supply in extensive Linear transformer driver It is equipped with fault detection and disconnecting switch, the fault detection and disconnecting switch include: isolating diode, disconnect switch, charging electricity Pressure and arging current detection component, solenoid valve let out energy resistance, controller；For positive polarity charge, isolating diode anode with fill The contact A of electric high voltage input terminal connection, isolating diode cathode and disconnect switch connects；It charges for negative polarity, two poles is isolated Pipe cathode is connect with charging high voltage input terminal, the contact A connection of isolating diode anode and disconnect switch；The contact of disconnect switch B is connect with the one end for letting out energy resistance, lets out the other end ground connection of energy resistance；Charging voltage and arging current detection component cloth are placed on connection Between lever and LTD module；Charging voltage and arging current detection component are connect with controller, and controller is connect with solenoid valve, Solenoid valve is connect with interlocking bar；In normal charging process, interlocking bar and contact A connection are disconnected with contact B；It charging voltage and fills Electric current detection component detects LTD module there are when fault characteristic information, and controller controls solenoid valve for interlocking bar and contact A It disconnects, with contact B connection.

2. according to claim 1 be used for extensive Linear transformer driver tape jam charging unit, which is characterized in that When LTD module is positive, negative polarity while when charging, then one is respectively provided between the positive and negative charging end and charge power supply of LTD module Fault detection and disconnecting switch, and corresponding two fault detections of same LTD module and disconnecting switch linkage.