CN101814850A - Wide-frequency and low-voltage side trigger control method and device thereof for series connection thyristor valve unit - Google Patents
Wide-frequency and low-voltage side trigger control method and device thereof for series connection thyristor valve unit Download PDFInfo
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Abstract
The invention provides wide-frequency and low-voltage side trigger control method and device thereof for a series connection thyristor valve unit. The device comprises a current source circuit, a thyristor circuit, an output bus and a magnetic loop transformer, wherein the current source circuit is connected with the thyristor circuit; the thyristor circuit is connected with the output bus; and the output bus is connected with the magnetic loop transformer. The control method comprises the following steps of: providing a current source with flexibly varied output current mode; when the thyristor needs not to be triggered, outputting the direct current with constant output current amplitude value by the current output bus; and when the thyristor needs to be triggered, outputting the alternating current with constant output amplitude value by the current output bus; and triggerring the thyristor by using the secondary side of the magnetic loop on the bus. The invention adopts a no-gap transfer between the direct current with constant amplitude value and the high-frequency alternating square wave current with constant amplitude value, and ensures the front edge of the first trigger pulse and the number of output paths of the trigger pulse can be conveniently adjusted; and the control circuit and a secondary edge circuit of the magnetic loop have simple structure and low cost.
Description
(1) technical field
The present invention relates to the thyristor technology, is exactly a kind of series thyristor valve group broadband low-voltage side trigger control method and device thereof specifically.
(2) background technology
In high-voltage large-capacity electric machine soft starting field and big capacity reactive power compensation field, often need to use the lower thyristor of a large amount of voltage withstand class to be composed in series the thyristor valve group.One of key technology of thyristor valve group be realize a plurality of series thyristors in the valve group trigger by force simultaneously and satisfy a plurality of series thyristors drive between with and and the control low-pressure side between isolation strength.And the triggering frequency of these thyristor valve groups is unfixing, when needing variable frequency soft start as inversion side at the synchronous machine soft starter device, the triggering frequency of thyristor can change to 50Hz from several Hz, the triggering frequency of asynchronous machine soft start thyristor is 300Hz, and also be jumpy in the switching frequency that reactive requirement changes the reactive power compensator that the occasion of violent (as spot welding machine etc.) uses, can be from changing to hundreds of Hz below the 1Hz fast.Existing technology is used pulse transformer to produce when strong trigger impulse is realized a plurality of series thyristor usually and is triggered, this needs good input voltage synchronism, under the situation of the thyristor negligible amounts of connecting, can use the series connection of pulse transformer, same power supply power supply is used on the former limit of pulse transformer, the conducting of the power tube that control is connected with power supply realizes the synchronous of pulse transformer, often do not reach the strong requirement that triggers of thyristor the pulse rise time of this method output, and when the pulse way of needs increases, power requirement to power tube increases greatly, and is high in addition, the electrical isolation problem of low-pressure side also is difficult to solve.And pulse transformer is difficult to reach very high isolation Level in price acceptable scope, and pulse transformer lies prostrate the long-pending restriction of microsecond in addition, and is saturated easily, triggers frequency and can not reach very high, and the trigger impulse number can not be too many.Also having a kind of method is to mention in the document " novel multichannel output high voltage isolated power supply and the application in short circuit current limiter thereof ", be to use high-tension cable to pass a plurality of magnet rings, high-tension cable is by the high frequency alternating current, this root high-tension cable is coupled to the magnet ring secondary as the former limit of a circle of a plurality of magnetic ring transformers with energy, secondary obtains stable voltage source through conversion, and the voltage source that obtains like this is that multichannel is isolated.With the voltage source pulse transformer of these isolation, the triggering signal of these pulse transformers comes from multi-channel optical fibre again.This trigger mode more complicated, the failure rate height.
The circuit topology of mentioning in the United States Patent (USP) " METHOD AND CIRCUIT FOR CONTROLLINGCURRENT IN HIGH PRESSURE DISCHARGE LAMP ", full-bridge is to be in alternate mode always, different fully with our control mode, and also make a world of difference in the field of using.
Six kinds of methods that trigger the thyristor valve group have been proposed in the document " Firing Series SCRs at Medium Voltage:Understanding theTopologies Ensures the Optimum Gate Drive Selection ".Method Type Ia triggers with voltage source, can only send single trigger impulse; Method Type Ib triggers with voltage source, can provide a plurality of trigger impulses, but duty ratio is restricted, the circuits for triggering complexity, and false triggering appears easily; Method Type IIa obtains the multichannel isolated voltage source with a plurality of transformers, re-uses multi-channel optical fibre transmission triggering signal, the switch triggering thyristor of control switch pipe.The high-low pressure isolation strength of this kind method is difficult to guarantee, and every thyristor needs an optical fiber; Method Type IIb obtains alternate current-changing source with half-bridge, through the coupling of magnet ring secondary, controls trigger impulse in the shutoff of opening of secondary control switch pipe.Every thyristor of this triggering mode needs an optical fiber, the circuit complexity, and the fault point is many; Method Type IIIa uses photo thyristor, but the restriction that this thyristor has it to use; Method Type IIIb uses the gate pole self-powered to drive thyristor, and storage capacitor needs the regular hour, and when the long-time conducting of thyristor, then the power supply of self-contained electric system just becomes big problem, and every thyristor needs an optical fiber.
(3) summary of the invention
The object of the present invention is to provide bumpless transfer between the high frequency alternation square wave current of a kind of direct current that adopts constant amplitude and constant amplitude, guarantee series thyristor valve group broadband low-voltage side trigger control method and device thereof that first trigger impulse forward position, trigger impulse output way can conveniently be adjusted.
The object of the present invention is achieved like this: described series thyristor valve group broadband low-pressure side triggers control device, it is made up of current source circuit, thyristor circuit, output bus and magnetic ring transformer, current source circuit connects thyristor circuit, thyristor circuit connects the output bus, and the output bus connects magnetic ring transformer.
Series thyristor valve group broadband low-pressure side of the present invention triggers control device, also has following technical characterictic:
(1) described current source circuit comprises BUCK constant current and constant-current control circuit, and the BUCK constant current connects constant-current control circuit.
(2) described BUCK constant current and constant-current control circuit, its control circuit adopt PWM special integrated circuit SG3525, and MOSFET drives and adopts IR2110.
(3) described thyristor circuit comprises current mode full-bridge inverter, thyristor triggering signal treatment circuit and full bridge driving circuit, and thyristor triggering signal treatment circuit connects the current mode full-bridge inverter, and the current mode full-bridge inverter connects full bridge driving circuit.
(4) the former limit of described magnetic ring transformer connects the output bus, and the secondary of magnetic ring transformer connects thyristor gating circuit.
A kind of series thyristor valve group of the present invention broadband low-voltage side trigger control method, the current source that provides a kind of current mode output to change flexibly, when thyristor does not need to trigger, the direct current of output current constant amplitude on the current source output bus; When thyristor need trigger, the constant alternating current of output amplitude on the current source output bus, the magnet ring secondary on the bus is used for triggering thyristor; Triggering signal provides in low-pressure side, not be used in each road, high-pressure side and all provides triggering signal, and the alternating current-direct current mode switch frequency of current source can be from being adjusted to hundreds of Hz below the 1Hz.
The present invention has following advantage: the frequency that triggers the thyristor valve group can depend on the switching frequency of outside switching signal from changing quickly and easily to hundreds of Hz below the 1Hz.The requirement of thyristor series system to gate pole trigger impulse electric current satisfied in first trigger impulse strictness, i.e. " chair " shape.Thyristor triggers and adopts burst mode, and the number of pulse train can be controlled flexibly, and not significantly decay of pulse amplitude.Among the present invention owing to adopt bumpless transfer between the high frequency alternation square wave current of the direct current of constant amplitude and constant amplitude, the forward position of having guaranteed first trigger impulse.The gate trigger current simultaneity is very high.After the triggering signal of thyristor was sent, full-bridge was operated in alternate mode, produced alternating current on the bus, the strong trigger impulse electric current of the multichannel of magnetic ring transformer secondary almost do not have time-delay (≤produce 1us).When satisfying between the high and low pressure side dielectric strength and requiring, can realize the shared same magnet rings of many groups, can realize the efficient coupling of energy.Trigger impulse output way can conveniently be adjusted, and dielectric strength is enough high between each road, between the high and low pressure side.It is more reliable to compare other triggering mode.Control circuit and magnet ring secondary circuit are simple in structure, with low cost.
(4) description of drawings
Fig. 1 is a current source block diagram of the present invention;
Fig. 2 is a current source main circuit schematic diagram of the present invention;
Fig. 3 is BUCK constant-current control circuit figure of the present invention;
Fig. 4 is a thyristor triggering signal treatment circuit of the present invention;
Fig. 5 is a full bridge driving circuit of the present invention;
Fig. 6 is the seamless conversion schematic diagram of full-bridge converter AC/DC electric current of the present invention;
Triggering signal and bus current waveform when Fig. 7 is triggering frequency 4Hz of the present invention;
Triggering signal and bus current waveform when Fig. 8 is triggering frequency 50Hz of the present invention;
Triggering signal when Fig. 9 is triggering frequency 100Hz of the present invention and bus current waveform;
Triggering signal and bus current waveform when Figure 10 is triggering frequency 300Hz of the present invention.
(5) embodiment
The invention will be further described for example below in conjunction with accompanying drawing.
Embodiment 1: in conjunction with Fig. 1---Fig. 5, a kind of series thyristor valve group of the present invention broadband low-pressure side triggers control device, it is made up of current source circuit, thyristor circuit, output bus and magnetic ring transformer, current source circuit connects thyristor circuit, thyristor circuit connects the output bus, and the output bus connects magnetic ring transformer.
Series thyristor valve group broadband low-pressure side of the present invention triggers control device, also has following technical characterictic:
Described current source circuit comprises BUCK constant current and constant-current control circuit, and the BUCK constant current connects constant-current control circuit.
Described BUCK constant current and constant-current control circuit, its control circuit adopt PWM special integrated circuit SG3525, and MOSFET drives and adopts IR2110.
Described thyristor circuit comprises current mode full-bridge inverter, thyristor triggering signal treatment circuit and full bridge driving circuit, and thyristor triggering signal treatment circuit connects the current mode full-bridge inverter, and the current mode full-bridge inverter connects full bridge driving circuit.
The former limit of described magnetic ring transformer connects the output bus, and the secondary of magnetic ring transformer connects thyristor gating circuit.
A kind of series thyristor valve group of the present invention broadband low-voltage side trigger control method, the current source that provides a kind of current mode output to change flexibly, when thyristor does not need to trigger, the direct current of output current constant amplitude on the current source output bus; When thyristor need trigger, the constant alternating current of output amplitude on the current source output bus, the magnet ring secondary on the bus is used for triggering thyristor; Triggering signal provides in low-pressure side, not be used in each road, high-pressure side and all provides triggering signal, and the alternating current-direct current mode switch frequency of current source can be from being adjusted to hundreds of Hz below the 1Hz.
Embodiment 2: in conjunction with Fig. 1-Figure 10, Fig. 1 is a current source block diagram of the present invention, and 220V voltage obtains the less direct voltage of pulsing through rectifying and wave-filtering again through electromagnetic interface filter.Utilize the BUCK circuit with current constant in set point.The Constant Direct Current electric current alternation that full-bridge circuit obtains the BUCK circuit by high-tension cable output, obtains the square wave current of high frequency alternation.The a plurality of magnet rings of series connection above the high-tension cable, the magnet ring secondary drives thyristor through simple shaping.Isolation strength between each thyristor and the control circuit is by the dielectric strength decision of high-tension cable.In main circuit, add the AC/DC module, obtain the 15V power supply and power to control circuit.The drive circuit of BUCK converter and full-bridge control circuit are separated, and guarantee reliably working.
Fig. 2 is a current source main circuit schematic diagram.Alternating current 220V process rectifying and wave-filtering obtains the voltage near direct current, in constant flow regulation through the BUCK converter, what inductance L 1 was exported is that ripple is very little, the direct current of constant amplitude, during the full-bridge converter operate as normal, diagonal angle arm switch pipe alternate conduction, what export on the high-tension cable is the alternation square wave current of constant amplitude, by the magnetic ring transformer effect, the alternation square wave current of generation of magnet ring secondary and former limit same frequency, amplitude is by magnet ring and the decision of the secondary number of turn.Secondary can remove the negative current of alternating current after handling through simple rectification, obtains the electric current square wave of 50% duty ratio, in order to drive thyristor.The thyristor driver waveform rise time that experiment obtains is in 1us, and amplitude and current-rising-rate and pulse duration are satisfied the strong triggering requirement of thyristor fully.When externally not having triggering command, the full-bridge of this circuit is operated in the straight-through state of a diagonal angle arm (Q1 and Q4), and the electric current on the bus is the direct current of constant amplitude, and the magnet ring secondary is not coupled over energy, and thyristor does not trigger.When the electric current on bus becomes DC mode by AC mode, because direct current does not have the energy coupling at the magnet ring secondary, the load in the circuit at this moment changes, and electric current has the adjusting time, therefore in order to obtain higher alternating current-direct current mode switch frequency, can strengthen the resistance of dummy load R among the figure.R is 5 ohm in the experiment, and when constant current magnitude was 3A, inversion frequency can reach 300Hz.
Fig. 3 is the constant-current control circuit figure of BUCK converter.Control circuit adopts PWM special integrated circuit SG3525, and MOSFET drives and adopts IR2110.Voltage on the R1 is input to control circuit through after the Filtering Processing as current sample, and through the duty ratio that the FEEDBACK CONTROL of SG3525 is regulated Q5, IR2110 isolates the output of SG3525, increases driving force.The output of IR2110 meets switching tube Q5.When electric current in the main circuit surpassed set point, it is big that the voltage on the R1 becomes, and by the regulating action of control circuit, the duty ratio of Q5 reduces, and electric current descends.Otherwise the duty ratio of Q5 increases, and this is a dynamic adjustment process.
Fig. 4 is the treatment circuit of thyristor triggering signal.After detecting thyristor triggering command (15V high level signal), 7555 4 pin receive this high level signal, and starting oscillation produces high frequency square wave, and this square wave is through oppositely obtaining the high frequency square wave of another road complementation.This two-way square wave is received on two IR2110, in order to drive 4 switching tubes of full-bridge.The interface circuit of two IR2110 is shown in Figure 5.
Fig. 5 is the drive circuit of full-bridge, and the driving of switching tube Q1 is provided by diagram G1 and S1, and the driving of switching tube Q4 is provided by G4 and POWGND.Switching tube Q1 is consistent with the Q4 drive waveforms.The driving of switching tube Q2 is provided by G2 and S2, and the driving of switching tube Q3 is provided by G3 and POWGND, and the drive waveforms of Q2 and Q3 is consistent, and Q1 and Q2 drive complementation.When the CTRL signal is high level, 7555 vibrations, Q1, Q4 diagonal angle arm and Q2, Q3 diagonal angle arm alternate conduction, the electric current on the high-tension cable is an alternating current, the magnet ring secondary is exported strong trigger impulse row.When system detected thyristor and need turn-off, control signal CTRL was a low level, and 7555 outputs are forbidden, VO is a low level, and through being high level behind the reverser, at this time the driving of Q1 and Q4 is the high level of 100% duty ratio, therefore this diagonal angle arm is straight-through, and Q2 and Q4 turn-off.Be output as the very little direct current of ripple on the high-tension cable, the alternating current amplitude that amplitude produces during with the full-bridge alternate conduction is the same, and the direct current that ripple is very little can not produce trigger impulse at the magnet ring secondary, and at this time thyristor turn-offs naturally.Therefore only to need an input signal be the conducting/shutoff control signal of thyristor to this control circuit, and the series connection that just can control thyristor triggers by force.
The a plurality of magnet rings of series connection on the high-tension cable, the negative-going portion of alternating current is removed in the simple rectification of magnet ring secondary process, is connected to gate circuit transistor gate by current-limiting resistance then.When if this circuit be used for drives high-pressure thyristor and needs big trigger current, can suitably increase the magnet ring primary current.15V power supply on the control circuit can add in main circuit that an AC/DC module obtains.
Fig. 6 is the waveform relationship figure between the electric current that flows through in outer triggering signal and the high-tension cable, when outer triggering signal is low level, what flow through in the main circuit is the direct current of constant amplitude, and small ripple is only arranged, and the magnet ring secondary of connecting on cable can not induce electric current.When outer triggering signal is high level (15V), but what flow through in the main circuit is the square wave current of constant amplitude high frequency alternation.Because adopt the switch mosfet pipe, switching speed is very fast, current rise time is less than 1 microsecond.And,, having realized the seamless conversion of electric current so electric current becomes there is not variation in interchange on amplitude problem by direct current because electric current was set up before the triggering signal high level arrives, real-time is very good.
Fig. 7 is triggering signal current waveform on the current source bus when being 4Hz.CH1 is a current waveform, and CH2 is a triggering signal.Can see that on scheming when triggering signal was high, electric current was an ac square wave, when triggering signal was low, electric current was a direct current.
Fig. 8 is triggering signal current waveform on the current source bus when being 50Hz.CH1 is a current waveform, and CH2 is a triggering signal, and CH3 is the current waveform of bus upper magnetic ring secondary.Can see that on scheming when triggering signal was high, electric current was an ac square wave, when triggering signal was low, electric current was a direct current.Among the figure as can be seen on the bus electric current electric current when interchange becomes direct current have adjustment process, but can not produce coupling energy at the magnet ring secondary.
Fig. 9 is triggering signal current waveform on the current source bus when being 100Hz.CH1 is a current waveform, and CH2 is a triggering signal, and CH3 is the current waveform of bus upper magnetic ring secondary.Can see that on scheming when triggering signal was high, electric current was an ac square wave, when triggering signal was low, electric current was a direct current.
Figure 10 is triggering signal current waveform on the current source bus when being 300Hz.CH1 is a current waveform, and CH2 is a triggering signal, and CH3 is the current waveform of bus upper magnetic ring secondary.As can be seen from the figure Ci Shi Current Regulation time and overshoot clearly, but still do not cause false triggering at the magnet ring secondary.By the improvement to BUCK circuit closed loop parameter, and the resistance that strengthens dummy load R among Fig. 2 can be improved the overshoot situation of electric current on the bus.
Embodiment 3: a kind of series thyristor valve group of the present invention broadband low-voltage side trigger control method, and the current source that provides a kind of current mode output to change flexibly, its characteristics are as follows:
(1) adopt current source to trigger thyristor, because thyristor is the current trigger device, with respect to the voltage source triggering mode, required electric current is little, and loss is also little, and reliability increases, also convenient the realization.Adopt the current source triggering mode, the secondary number of turn is few, and the insulation between the secondary is handled easily.Adopt magnetic ring transformer, on the magnet ring a plurality of secondary can be arranged, way can conveniently increase and decrease, and can carry out effective insulation protection with insulating material between each secondary.If adopt the voltage source mode to trigger thyristor, voltage is converted into electric current because of being subjected to the restriction of loop inductance, the foundation of electric current needs the time, in order to shorten the settling time of electric current, realize the strong triggering of thyristor valve group, the voltage of voltage source often will be done very highly, though satisfied strong triggering requirement like this, but the stable state trigger current can be very big, gate pole considerably beyond thyristor triggers maximum current, head it off can only become the way of output by voltage source to be realized, adopts high voltage source when promptly triggering by force, adopts low-tension supply during stable state.If only use a kind of power supply, then can only sacrifice strong triggering, promptly do not possess strong triggering function, this reliably working to the thyristor valve group is very disadvantageous.And there is not the process of setting up of electric current in the current source mode, and the electric current overshoot when only having AC-DC conversion has been guaranteed the leading-edge steepness of trigger impulse electric current and triggered requirement, i.e. " chair " shape of gate circuit transistor gate trigger current by force.Therefore, the current source mode realizes that " chair " shape of gate circuit transistor gate trigger current is very easy to, and the voltage source mode realizes very difficulty of gate circuit transistor gate trigger current " chair " shape.
(2) existing technology is used pulse transformer to produce when strong trigger impulse is realized a plurality of series thyristor to trigger usually, this needs good input voltage synchronism, under the situation of the thyristor negligible amounts of connecting, can use the series connection of pulse transformer, same power supply power supply is used on the former limit of pulse transformer, the conducting of the triode that control is connected with power supply realizes the synchronous of pulse transformer, often do not reach the strong requirement that triggers of thyristor the pulse rise time of this method output, and when the pulse way of needs increases, power requirement to triode increases greatly, and is high in addition, the electrical isolation problem of low-pressure side also is difficult to solve.And pulse transformer is difficult to reach very high isolation Level in price acceptable scope, and pulse transformer lies prostrate the long-pending restriction of microsecond in addition, and is saturated easily, triggers frequency and can not reach very high, and the trigger impulse number can not be too many.The another kind of multichannel high pressure of realizing is isolated the method for output and is to use high-tension cable to pass a plurality of magnet rings, high-tension cable is by the high frequency alternating current, this root high-tension cable is coupled to the transformer secondary as driving energy as the former limit of a circle of a plurality of magnetic ring transformers with energy, and the isolation strength of high-tension cable has determined the dielectric strength between each magnetic ring transformer.This trigger mode can be exported the close pulse train of a plurality of amplitudes, does not lie prostrate the long-pending restriction of microsecond, triggers frequency and can reach hundreds of Hz, and the pulse number in the pulse train also can be controlled flexibly.
Claims (6)
1. a series thyristor valve group broadband low-pressure side triggers control device, it is made up of current source circuit, thyristor circuit, output bus and magnetic ring transformer, it is characterized in that: current source circuit connects thyristor circuit, thyristor circuit connects the output bus, and the output bus connects magnetic ring transformer.
2. a kind of series thyristor valve group broadband low-pressure side according to claim 1 triggers control device, and it is characterized in that: described current source circuit comprises BUCK constant current and constant-current control circuit, and the BUCK constant current connects constant-current control circuit.
3. a kind of series thyristor valve group broadband low-pressure side according to claim 2 triggers control device, it is characterized in that: described BUCK constant current and constant-current control circuit, its control circuit adopts PWM special integrated circuit SG3525, and MOSFET drives and adopts IR2110.
4. a kind of series thyristor valve group broadband low-pressure side according to claim 1 triggers control device, it is characterized in that: described thyristor circuit comprises current mode full-bridge inverter, thyristor triggering signal treatment circuit and full bridge driving circuit, thyristor triggering signal treatment circuit connects the current mode full-bridge inverter, and the current mode full-bridge inverter connects full bridge driving circuit.
5. a kind of series thyristor valve group broadband low-pressure side according to claim 1 triggers control device, it is characterized in that: the former limit of described magnetic ring transformer connects the output bus, and the secondary of magnetic ring transformer connects thyristor gating circuit.
6. series thyristor valve group broadband low-voltage side trigger control method, it is characterized in that: the invention provides the current source that a kind of current mode output can change flexibly, when thyristor does not need to trigger, the direct current of output current constant amplitude on the current source output bus; When thyristor need trigger, the constant alternating current of output amplitude on the current source output bus, the magnet ring secondary on the bus is used for triggering thyristor; Triggering signal provides in low-pressure side, not be used in each road, high-pressure side and all provides triggering signal, and the alternating current-direct current mode switch frequency of current source can be from being adjusted to hundreds of Hz below the 1Hz.
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| CN200910225357A CN101814850A (en) | 2009-11-17 | 2009-11-17 | Wide-frequency and low-voltage side trigger control method and device thereof for series connection thyristor valve unit |
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| CN200910225357A CN101814850A (en) | 2009-11-17 | 2009-11-17 | Wide-frequency and low-voltage side trigger control method and device thereof for series connection thyristor valve unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001472A (en) * | 2011-09-14 | 2013-03-27 | 厦门蓝溪科技有限公司 | Miniature intelligent converter and method for controlling same |
| CN105281731A (en) * | 2014-05-28 | 2016-01-27 | 株洲变流技术国家工程研究中心有限公司 | Thyristor valve block trigger device and thyristor valve block trigger system |
| CN108111003A (en) * | 2018-01-19 | 2018-06-01 | 深圳市盛弘电气股份有限公司 | A kind of thyristor driving circuit and method |
| CN111383780A (en) * | 2018-12-27 | 2020-07-07 | 核工业西南物理研究院 | Synchronous digital trigger system for multiple sets of thyristor pulse power supplies |
-
2009
- 2009-11-17 CN CN200910225357A patent/CN101814850A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001472A (en) * | 2011-09-14 | 2013-03-27 | 厦门蓝溪科技有限公司 | Miniature intelligent converter and method for controlling same |
| CN105281731A (en) * | 2014-05-28 | 2016-01-27 | 株洲变流技术国家工程研究中心有限公司 | Thyristor valve block trigger device and thyristor valve block trigger system |
| CN108111003A (en) * | 2018-01-19 | 2018-06-01 | 深圳市盛弘电气股份有限公司 | A kind of thyristor driving circuit and method |
| CN111383780A (en) * | 2018-12-27 | 2020-07-07 | 核工业西南物理研究院 | Synchronous digital trigger system for multiple sets of thyristor pulse power supplies |
| CN111383780B (en) * | 2018-12-27 | 2022-10-21 | 核工业西南物理研究院 | Synchronous digital trigger system for multiple sets of thyristor pulse power supplies |
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