CN202736824U - Phase tracking and triggering control device of vacuum trigger switch under alternating current condition - Google Patents
Phase tracking and triggering control device of vacuum trigger switch under alternating current condition Download PDFInfo
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- CN202736824U CN202736824U CN 201220315315 CN201220315315U CN202736824U CN 202736824 U CN202736824 U CN 202736824U CN 201220315315 CN201220315315 CN 201220315315 CN 201220315315 U CN201220315315 U CN 201220315315U CN 202736824 U CN202736824 U CN 202736824U
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Abstract
The utility model discloses a phase tracking and triggering control device of a vacuum trigger switch under alternating current condition, wherein the device mainly comprises a voltage transformer, a signal conditioning unit, a signal collecting unit, a data processing unit, a triggering control unit, a state monitoring unit and a triggering unit; the primary side of the voltage transformer is connected on the main electrode alternating current input end of the vacuum trigger switch, and the secondary side of the voltage transformer is connected with the input end of the signal conditioning unit; the output end of the signal conditioning unit is connected with the input end of the data processing unit through the signal collecting unit; the output end of the signal collecting unit is connected with the triggering control unit; the output end of the triggering control unit is connected on the input end of the triggering unit; the input end of the state monitoring unit is connected with the triggering unit and the vacuum trigger switch, and the output end of the state monitoring unit is connected with the data processing unit; and the output end of the triggering unit is connected on the triggering electrode of the vacuum trigger switch. The phase tracking and triggering control device disclosed by the utility model can be used for accurately controlling the trigger of a triggering source of the vacuum trigger switch in a repeated frequency pulse power system.
Description
Technical field
The utility model relates to the Triggered Vacuum Switch field, is specifically related to Phase Tracking and trigger control device under a kind of Triggered Vacuum Switch interchange condition.
Background technology
Triggered Vacuum Switch (Triggered Vacuum Switch, TVS) is called again triggered vacuum gap (Triggered Vacuum Gap, TVG), is an important branch of vacuum switch, and the development of its development and vacuum switch is closely bound up.It is a kind of novel switched device that Vacuum Relay Technique and three-electrode spark gap technology is combined and grow up, be characterized in utilizing vacuum as the dielectric between main contact and arc-extinguishing medium, and adopt the trigger electrode of particular design to come control switch to carry out quick crowbar.TVS is just causing researcher's concern as a kind of high parameter fast and reliable making switch device with high development prospect, has preferably practical value and wide application prospect as fields such as the pulsed discharge system of a critical component in the capacitor energy storage type pulse power system in Electro-magnetic Launcher System, various high voltage magnet charger, explosion mechanics research, pulse laser system, pulsed magnetic field system, primary cut-out synthetic test system, fault current limitations.Triggering time delay, triggering precision and the working life of TVS is the key parameter of TVS.It is the impact of the factors such as trigger energy, main gap voltage, trigger electrode and main electrode polarity that triggering time delay and triggering precision mainly are subjected to trigger electrode structural parameters, trigger electrode dielectric material, trigger voltage, trigger current.The life-span of nearly all TVS is not to come to an end owing to vacuum decline or electrode erosion, but because the trigger electrode in the triggering system can not triggered as normal quit work, the actual trigger electrode working life that has determined TVS of the performance of trigger source.Performance requirement to TVS generally comprises: being swift in motion property; Certain flow conductivity; Reruning property; Accurately trigger control etc.
In the past mainly with TVS as Closing Switch, the capacitor (group) of in advance charging of control discharges to certain loads, the initialization voltage of main circuit is direct current, does not have the control problem of phase-triggered (alternating voltage working point).And for the application of TVS in repetitive frequency pulsed power system, such as occasions such as the High-Voltage Experiment system of high-voltage switch gear, fault current limitations, then need the signal characteristic of TVS main electrode is judged and predicted, in order at the phase point of expection TVS is triggered control accurately.
The utility model content
Technical problem to be solved in the utility model provides Phase Tracking and trigger control device under a kind of Triggered Vacuum Switch interchange condition, and it can accurately trigger control to the trigger source of the Triggered Vacuum Switch in the repetition rate pulse power system.
For addressing the above problem, Phase Tracking and trigger control device under the designed a kind of Triggered Vacuum Switch interchange condition of the utility model mainly are comprised of voltage transformer, signal condition unit, signal gathering unit, data processing unit, trigger control unit, condition monitoring unit and trigger element; The primary side of voltage transformer is connected on the main electrode ac input end of Triggered Vacuum Switch, and the secondary side of voltage transformer links to each other with the input of signal condition unit; The output of signal condition unit is connected to the input of data processing unit via signal gathering unit; The output of data processing unit connects trigger control unit; The output of trigger control unit is connected on the input of trigger element; The input of condition monitoring unit connects trigger element and Triggered Vacuum Switch, and the output of condition monitoring unit is the connection data processing unit then; The output of trigger element is connected on the trigger electrode of Triggered Vacuum Switch.
In the such scheme, described data processing unit comprises sampled data module, digital filtering module, digital phase-locked loop module, interpolation algorithm module, zero point prediction module, expection phase-triggered module and digital delay module; The output of signal gathering unit links to each other with the input of digital filtering module through the sampled data module; The output of digital filtering module is divided into two-way, and one the tunnel is connected via the input of digital phase-locked loop module with expection phase-triggered module, another road then successively through the interpolation algorithm module with zero point prediction module with expect that the input of phase-triggered module is connected; The digital delay module is connected on the input/output terminal of expection phase-triggered module; The output of expection phase-triggered module connects the input of trigger control unit.
In the such scheme, described digital filtering module is for there being limit for length's unit impulse response digital filtering module.
In the such scheme, the primary side of described voltage transformer links to each other with the main electrode ac input end of Triggered Vacuum Switch with reactor via transformer; The primary side of above-mentioned voltage transformer is connected with the primary side of transformer, and a wherein end of the secondary side of transformer links to each other with the anode of Triggered Vacuum Switch through reactor, and the other end of the secondary side of transformer then directly links to each other with the cathode of Triggered Vacuum Switch.
Compared with prior art, the utlity model has following features:
1. exchange the control of main circuit voltage expection phase-triggered point, hardware is based on field programmable gate array (FPGA), 16 A/D converters and DSP2812, software realizes that adopting at 64 has limit for length's impulse response FIR digital filtering and interpolation algorithm, carry out phase-detection and tracking, have the fast and high advantage of control precision of detection speed;
2.TVS trigger the working method of power acquisition high-voltage breakdown, large electric current afterflow, the monitoring of trigger source self energy-storage units and control module are set, it is accurately controlled to realize that single triggers the trigger energy of supplying with TVS, adopt this method can effectively avoid owing to guaranteeing that reliable conducting applies too much unnecessary trigger energy, causes the dissipation of the unnecessary ablation of TVS trigger electrode and triggering material;
3. the trigger energy that applies in the each trigger process of Triggering Control System monitoring TVS, main electrode conducting state, operational environment are degree and humidity, the condition of work and the operation history data that trigger by analyzing current preparation, the trigger energy that this reliable triggering of rational should apply, adopt this measure to select to guarantee reliable conducting according to concrete operating mode and the operation history of TVS, can not cause to trigger electrode and material again the trigger energy control strategy of unnecessary ablation;
4.TVS trigger controller is reserved the optical fiber CAN bus communication interface, can conveniently realize the control of TVS Remote triggering, the electrical isolation fail safe is good, can transmit as required TVS trigger source state information and the operation history data that is stored in the trigger controller memory cell in addition, so that the required triggering control parameter of analysis and long-range adjustment.
Description of drawings
Fig. 1 is Phase Tracking and trigger control device schematic diagram under the Triggered Vacuum Switch interchange condition;
Fig. 2 is the schematic diagram of data processing unit among Fig. 1;
Fig. 3 is the concrete application example figure of Phase Tracking and trigger control device under the Triggered Vacuum Switch interchange condition.
Embodiment
Under a kind of Triggered Vacuum Switch interchange condition Phase Tracking and trigger control device as shown in Figure 1, it mainly is comprised of voltage transformer, signal condition unit, signal gathering unit, data processing unit, trigger control unit, condition monitoring unit and trigger element; The primary side of voltage transformer is connected on the main electrode ac input end of Triggered Vacuum Switch, and the secondary side of voltage transformer links to each other with the input of signal condition unit; The output of signal condition unit is connected to the input of data processing unit via signal gathering unit; The output of data processing unit connects trigger control unit; The output of trigger control unit is connected on the input of trigger element; The input of condition monitoring unit connects trigger element and Triggered Vacuum Switch, and the output of condition monitoring unit is the connection data processing unit then; The output of trigger element is connected on the trigger electrode of Triggered Vacuum Switch.
Triggered Vacuum Switch (TVS) work main circuit operating voltage is measured in acting as of voltage transformer.Send into the signal condition unit after the voltage transformer output process secondary sensing and carry out the links such as ratio amplification, filtering.Carry out data operation, Phase Tracking and trigger control algolithm by core processing unit after the A/D converter conversion through the signal after the conditioning.The function of trigger control unit is to send out to trigger and control command control TVS operation to trigger equipment.The effect of condition monitoring unit: 1, detect TVS and main circuit state, record TVS operation history and triggering and conducting situation; 2, the state of monitoring trigger equipment comprises trigger equipment energy storage situation, ambient temperature, storage capacitor charge condition, foundation is provided for the control triggering of trigger control unit.Trigger equipment is TVS trigger source main circuit, is made of high voltage-small current puncture circuit and low-voltage, high-current freewheeling circuit 2 parts.High voltage-small current circuit Main Function is to make the main electrode at trigger electrode and place thereof produce disruptive discharge under action of high voltage, and the effect of low-voltage, high-current circuit provides enough energy can continue disruptive discharge, and guarantees the energy of input.TVS triggers the working method of power acquisition high-voltage breakdown, little electric current afterflow, the monitoring of trigger source self energy-storage units and control module are set, it is accurately controlled to realize that single triggers the trigger energy of supplying with TVS, adopt this method can effectively avoid owing to guaranteeing that reliable conducting applies too much unnecessary trigger energy, causes the dissipation of the unnecessary ablation of TVS trigger electrode and triggering material.
In the utility model, described data processing unit comprises sampled data module, digital filtering module, digital phase-locked loop module, interpolation algorithm module, zero point prediction module, expection phase-triggered module and digital delay module as shown in Figure 2; The output of signal gathering unit links to each other with the input of digital filtering module through the sampled data module; The output of digital filtering module is divided into two-way, and one the tunnel is connected via the input of digital phase-locked loop module with expection phase-triggered module, another road then successively through the interpolation algorithm module with zero point prediction module with expect that the input of phase-triggered module is connected; The digital delay module is connected on the input/output terminal of expection phase-triggered module; The output of expection phase-triggered module connects the input of trigger control unit.In the utility model preferred embodiment, described digital filtering module is for there being limit for length's unit impulse response digital filtering module.
Exchange the control of main circuit voltage expection phase-triggered point, hardware is based on field programmable gate array (FPGA), 16 A/D converters and DSP2812, software realizes that adopting at 64 has limit for length's impulse response FIR digital filtering and interpolation algorithm, carry out phase-detection and tracking, have the fast and high advantage of control precision of detection speed.The specific implementation process is: TVS main circuit voltage to be tracked, through the voltage transformer conversion, signal condition is sent into core data processing unit DSP2812 after the A/D sampling, wherein carrying out at 64 has limit for length's impulse response FIR digital filtering and finishes interpolation algorithm, survey the zero point of monitored amount as expecting one of basis for estimation of phase-triggered, FIR digital filtering output is sent into digital phase-locked loop and is carried out Phase Tracking as one of basis for estimation of phase phase-triggered, through sending out behind the delay time that needs triggering command phased.
Voltage transformer both can connect the ac high-voltage main circuit, and this moment, the primary side main electrode ac input end that is directly installed on Triggered Vacuum Switch of voltage transformer was between the TVS main electrode.Voltage transformer also can be as shown in Figure 3, the low-pressure side that is connected on transformer obtains phase reference signal, this moment, the primary side of voltage transformer was connected with the primary side of transformer, a wherein end of the secondary side of transformer links to each other with the anode of Triggered Vacuum Switch through reactor, and the other end of the secondary side of transformer then directly links to each other with the cathode of Triggered Vacuum Switch.The main electrode of TVS is connected to respectively circuit to be controlled, and the outer high-voltage alternating form load of executing is born at the main electrode two ends.The secondary side of voltage transformer is in core processing unit and the trigger control unit through sending into master controller after the phase-detection, and the output of master controller links to each other with the trigger electrode of Triggered Vacuum Switch through trigger equipment.Voltage transformer is responsible for variable detection, the control action in the course of work.The output signal of phase detection device receiver voltage instrument transformer is as the reference signal of Phase Tracking and control.Master controller carries out data operation, Phase Tracking, triggering control algolithm and sends triggering signal.Trigger equipment provides the energy of TVS triggering and conducting, and the specific works mode is by the state of master controller according to TVS and trigger equipment, and the main circuit need of work determines.
Claims (4)
1. Phase Tracking and trigger control device under the Triggered Vacuum Switch interchange condition is characterized in that: mainly be comprised of voltage transformer, signal condition unit, signal gathering unit, data processing unit, trigger control unit, condition monitoring unit and trigger element; The primary side of voltage transformer is connected on the main electrode ac input end of Triggered Vacuum Switch, and the secondary side of voltage transformer links to each other with the input of signal condition unit; The output of signal condition unit is connected to the input of data processing unit via signal gathering unit; The output of data processing unit connects trigger control unit; The output of trigger control unit is connected on the input of trigger element; The input of condition monitoring unit connects trigger element and Triggered Vacuum Switch, and the output of condition monitoring unit is the connection data processing unit then; The output of trigger element is connected on the trigger electrode of Triggered Vacuum Switch.
2. Phase Tracking and trigger control device under the Triggered Vacuum Switch interchange condition according to claim 1 is characterized in that: data processing unit comprises sampled data module, digital filtering module, digital phase-locked loop module, interpolation algorithm module, zero point prediction module, expection phase-triggered module and digital delay module; The output of signal gathering unit links to each other with the input of digital filtering module through the sampled data module; The output of digital filtering module is divided into two-way, and one the tunnel is connected via the input of digital phase-locked loop module with expection phase-triggered module, another road then successively through the interpolation algorithm module with zero point prediction module with expect that the input of phase-triggered module is connected; The digital delay module is connected on the input/output terminal of expection phase-triggered module; The output of expection phase-triggered module connects the input of trigger control unit.
3. Phase Tracking and trigger control device under the Triggered Vacuum Switch interchange condition according to claim 2, it is characterized in that: described digital filtering module is for there being limit for length's unit impulse response digital filtering module.
4. Phase Tracking and trigger control device under the Triggered Vacuum Switch interchange condition according to claim 1, it is characterized in that: the primary side of described voltage transformer links to each other with the main electrode ac input end of Triggered Vacuum Switch with reactor via transformer; The primary side of above-mentioned voltage transformer is connected with the primary side of transformer, and a wherein end of the secondary side of transformer links to each other with the anode of Triggered Vacuum Switch through reactor, and the other end of the secondary side of transformer then directly links to each other with the cathode of Triggered Vacuum Switch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315315 CN202736824U (en) | 2012-07-02 | 2012-07-02 | Phase tracking and triggering control device of vacuum trigger switch under alternating current condition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220315315 CN202736824U (en) | 2012-07-02 | 2012-07-02 | Phase tracking and triggering control device of vacuum trigger switch under alternating current condition |
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| CN202736824U true CN202736824U (en) | 2013-02-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863954A (en) * | 2017-10-26 | 2018-03-30 | 华中科技大学 | A kind of and matching used high temperature trigger source of Triggered Vacuum Switch |
| CN108111151A (en) * | 2017-12-20 | 2018-06-01 | 广州广电计量检测股份有限公司 | Method of controlling switch and system, switching control device and test device |
| CN108196099A (en) * | 2017-12-20 | 2018-06-22 | 广州广电计量检测股份有限公司 | ON-OFF control circuit and test equipment |
-
2012
- 2012-07-02 CN CN 201220315315 patent/CN202736824U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863954A (en) * | 2017-10-26 | 2018-03-30 | 华中科技大学 | A kind of and matching used high temperature trigger source of Triggered Vacuum Switch |
| CN107863954B (en) * | 2017-10-26 | 2020-06-02 | 华中科技大学 | High-temperature trigger source matched with trigger vacuum switch for use |
| CN108111151A (en) * | 2017-12-20 | 2018-06-01 | 广州广电计量检测股份有限公司 | Method of controlling switch and system, switching control device and test device |
| CN108196099A (en) * | 2017-12-20 | 2018-06-22 | 广州广电计量检测股份有限公司 | ON-OFF control circuit and test equipment |
| CN108196099B (en) * | 2017-12-20 | 2020-05-19 | 广州广电计量检测股份有限公司 | Switch control circuit and test equipment |
| CN108111151B (en) * | 2017-12-20 | 2021-05-28 | 广州广电计量检测股份有限公司 | Switch control method and system, switch control equipment and test device |
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Granted publication date: 20130213 Termination date: 20130702 |