CN114137380A - Testing loop and method for on-off characteristic of thyristor in high-temperature state - Google Patents
Testing loop and method for on-off characteristic of thyristor in high-temperature state Download PDFInfo
- Publication number
- CN114137380A CN114137380A CN202111396333.7A CN202111396333A CN114137380A CN 114137380 A CN114137380 A CN 114137380A CN 202111396333 A CN202111396333 A CN 202111396333A CN 114137380 A CN114137380 A CN 114137380A
- Authority
- CN
- China
- Prior art keywords
- thyristor
- switch valve
- alternating current
- circuit
- current switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title abstract description 9
- 239000003990 capacitor Substances 0.000 claims abstract description 28
- 230000010355 oscillation Effects 0.000 claims abstract description 25
- 238000005485 electric heating Methods 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 230000001629 suppression Effects 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005316 response function Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2601—Apparatus or methods therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2607—Circuits therefor
- G01R31/263—Circuits therefor for testing thyristors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention discloses a testing loop and a method for the on-off characteristic of a thyristor in a high-temperature state, which comprises a control cabinet, a thyristor electric heating loop, a charging circuit, a high-frequency oscillation circuit, an alternating current switch valve, a bypass switch, a measuring system and a temperature measuring instrument for detecting the temperature of the thyristor in the alternating current switch valve, wherein the high-frequency oscillation circuit comprises a capacitor bank and a multi-gear inductor, the charging circuit is connected with the capacitor bank in parallel, the high-frequency oscillation circuit is connected with the alternating current switch valve in parallel, a branch formed by connecting the thyristor electric heating loop and the bypass switch in series is connected with the alternating current switch valve in parallel, the measuring system is connected with the alternating current switch valve, the control cabinet is connected with the thyristor electric heating loop, the charging circuit, the high-frequency oscillation circuit, the alternating current switch valve, the bypass switch, the measuring system and the temperature measuring instrument, and the loop and the method can measure the on-off characteristic of the thyristor in the high-temperature state, meanwhile, the measurement error is low.
Description
Technical Field
The invention belongs to the technical field of performance test, and relates to a test circuit and a method for the on-off characteristic of a thyristor in a high-temperature state.
Background
An alternating current switch valve composed of an anti-parallel thyristor structure is a core device of a high-capacity power electronic switch, and has the capability of switching on and off positive and negative current with high frequency, large voltage and large current peak values. The alternating current switch valve is in a modular design, a set of alternating current switch valve modules generally comprises 5-6 stages of thyristors in an anti-parallel structure, an energy taking control unit and a voltage-sharing resistance-capacitance element, and tests such as voltage-sharing resistance-capacitance loops, trigger performance, full current and frequency response function need to be verified in research tests and factory tests in order to guarantee the stability and reliability of the functions and the performance of the alternating current switch valve modules.
The temperature of the thyristor element of the alternating-current switch valve module can be increased in continuous work, so that the performance of the alternating-current switch valve module can be reduced, the thyristor element of the high-frequency alternating-current switch valve is heated in a test stage, and the on-off characteristics of the thyristor at different temperatures are tested. The common test mode is that the AC switch valve is placed in a high-temperature and closed test chamber, a heating device is started to heat the room temperature to about 90 ℃, and then a high-capacity high-frequency oscillation test is carried out to test the characteristics of the thyristor such as turn-on and turn-off. The laboratory condition that this mode needs is harsh and all be in high temperature state simultaneously at components and parts such as alternating current switch valve, control collection return circuit, power, integrated circuit board under this experimental environment, is not conform to actual service environment, and the parameter of measurement also has great error can not satisfy the test requirement.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a testing circuit and a testing method for the on-off characteristic of a thyristor in a high-temperature state, the circuit and the method can be used for measuring the on-off characteristic of the thyristor in the high-temperature state, and meanwhile, the measurement error is low.
In order to achieve the above purpose, the testing circuit of the on-off characteristic of the thyristor in the high temperature state comprises a control cabinet, a thyristor electric heating circuit, a charging circuit, a high-frequency oscillation circuit, an alternating current switch valve, a bypass switch, a measuring system and a temperature measuring instrument for detecting the temperature of the thyristor in the alternating current switch valve, wherein the high-frequency oscillation circuit comprises a capacitor bank and a multi-gear inductor, the charging circuit is connected with the capacitor bank in parallel, the high-frequency oscillation circuit is connected with the alternating current switch valve in parallel, a branch formed by connecting the thyristor electric heating circuit and the bypass switch in series is connected with the alternating current switch valve in parallel, the measuring system is connected with the alternating current switch valve, and the control cabinet is connected with the thyristor electric heating circuit, the charging circuit, the high-frequency oscillation circuit, the alternating current switch valve, the bypass switch, the measuring system and the temperature measuring instrument.
The thyristor electric heating loop comprises a switch cabinet, a heating power supply, a voltage regulator, a transformer, a load resistor and a bypass switch connected with an alternating current switch valve, wherein the heating power supply is connected with the alternating current switch valve through the voltage regulator, the transformer, the load circuit and the bypass switch and is connected with the bypass switch, the switch cabinet is connected with a control cabinet, and the output end of the switch cabinet is connected with the control end of the bypass switch connected with the alternating current switch valve.
The charging circuit comprises a charging power supply, a power frequency step-up transformer, a current-limiting resistor, a silicon rectifier stack and a first contactor, wherein the charging power supply, the power frequency step-up transformer, the current-limiting resistor, the silicon rectifier stack and the first contactor are sequentially connected in series, and the control cabinet is connected with the first contactor.
The high-frequency oscillation circuit further comprises a second contactor, wherein the capacitor bank, the multi-gear inductor and the second contactor are connected in series, and the second contactor is connected with the control cabinet.
The multi-gear inductor is connected with an overvoltage suppression circuit.
The alternating current switch valve is formed by reversely connecting a plurality of stages of thyristors in parallel.
The measuring system comprises a high-voltage probe, a low-voltage probe, a Rogowski coil and a digital oscilloscope, wherein the voltage to ground of the alternating current switch valve is monitored through the high-voltage probe, a trigger signal of the alternating current switch valve is monitored through the low-voltage probe, the current on the alternating current switch valve is monitored through the Rogowski coil, and the digital oscilloscope is connected with the high-voltage probe, the low-voltage probe and the Rogowski coil.
The thermometer is a fluorescence thermometer.
The heating power supply, the voltage regulator, the transformer, the load resistor and the bypass switch are connected with the alternating current switch valve through cables with the through-flow diameter larger than 100 mm.
The testing method of the on-off characteristic of the thyristor in the high-temperature state comprises the following steps:
1) the control case closes the bypass switch, applies voltage to the alternating current switch valve through the thyristor electric heating loop to enable the temperature of the thyristor in the alternating current switch valve to rise, meanwhile, the control case detects the temperature of the thyristor in the alternating current switch valve in real time through the temperature measuring instrument, and when the temperature of the thyristor in the alternating current switch valve reaches the test required temperature, the bypass switch is disconnected;
2) the control cabinet controls the charging circuit to work, the capacitor bank is charged through the charging circuit, and the charging circuit is closed after the capacitor bank is charged;
3) a circuit formed by the capacitor bank, the multi-gear inductor and the alternating current switch valve is conducted, the voltage to ground of the alternating current switch valve, a trigger signal of the alternating current switch valve and the current on the alternating current switch valve are monitored through a measuring system, and the on-off characteristic parameters of the thyristor at the temperature required by the current test are obtained.
The invention has the following beneficial effects:
when the circuit and the method for testing the on-off characteristic of the thyristor in the high-temperature state are specifically operated, the thyristor electric heating circuit applies voltage to the alternating-current switch valve, so that the temperature of the thyristor in the alternating-current switch valve is increased, the room temperature is prevented from being heated to 90 ℃, and devices except the alternating-current switch valve are prevented from being placed in the high-temperature state, so that the test difficulty is reduced, the measurement accuracy is higher, the performance verification requirements of an alternating-current switch valve module under high temperature, large voltage, large current and high frequency are met, the temperature can be heated to more than 100 ℃, the performance test can be performed on the alternating-current switch valve at each temperature, and the test support is provided for the performance function verification of a high-capacity rapid alternating-current switch device. In addition, it should be noted that the control cabinet detects the temperature of the thyristor in the alternating current switch valve in real time through the temperature measuring instrument, and when the temperature of the thyristor in the alternating current switch valve reaches the test required temperature, the bypass switch is turned off, namely, the heating loop is turned off when the required test temperature is reached, so that the high-capacity high-frequency oscillation test can be directly carried out, the test efficiency is improved, and meanwhile, the test acquisition data is more accurate.
Drawings
Fig. 1 is a schematic diagram of the present invention.
The system comprises a charging circuit 1, a capacitor bank 2, a multi-gear inductor 3, an overvoltage suppression circuit 4, a measurement system 5, an alternating current switch valve 6, a bypass switch 7 and a thyristor electric heating loop 8.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
There is shown in the drawings a schematic block diagram of a disclosed embodiment in accordance with the invention. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1, the testing circuit of the on-off characteristic of the thyristor in the high temperature state comprises a control cabinet, a thyristor electric heating circuit 8, a charging circuit 1, a high-frequency oscillation circuit, an ac switch valve 6, a bypass switch 7, a measuring system 5 and a temperature detector for detecting the temperature of the thyristor in the ac switch valve 6, the high-frequency oscillation circuit comprises a capacitor bank 2 and a multi-gear inductor 3, the charging circuit 1 is connected with the capacitor bank 2 in parallel, the high-frequency oscillation circuit is connected with the alternating current switch valve 6 in parallel, a branch formed by serially connecting the thyristor electric heating circuit 8 and the bypass switch 7 is connected with the alternating current switch valve 6 in parallel, the measuring system 5 is connected with the alternating current switch valve 6, and the control cabinet is connected with the thyristor electric heating circuit 8, the charging circuit 1, the high-frequency oscillation circuit, the alternating current switch valve 6, the bypass switch 7, the measuring system 5 and the temperature measuring instrument.
The thyristor electric heating loop 8 comprises a switch cabinet, a heating power supply, a voltage regulator, a transformer, a load resistor and a bypass switch connected with an alternating current switch valve, wherein the heating power supply is connected with the alternating current switch valve through the voltage regulator, the transformer, a load circuit and the bypass switch and is connected with the bypass switch, the switch cabinet is connected with a control cabinet, the output end of the switch cabinet is connected with the control end of the bypass switch connected with the alternating current switch valve, the voltage regulator is a column voltage regulator with the capacity of 500kVA, the transformer is a step-down transformer with the transformation ratio of 400:20 and the through-flow 2000A, the load resistor is 0.01-0.2 omega, and all devices in the thyristor electric heating loop 8 are connected by cables with the through-flow diameter larger than 100 mm.
The charging circuit 1 comprises a charging power supply, a power frequency step-up transformer, a current-limiting resistor, a silicon rectifier stack and a first contactor, wherein the charging power supply, the power frequency step-up transformer, the current-limiting resistor, the silicon rectifier stack and the first contactor are sequentially connected in series, and a control cabinet is connected with the first contactor, wherein the rated output voltage of the power frequency step-up transformer is 50kV, the current-limiting resistor is 21k omega, the rated output voltage of the silicon rectifier stack is 120kV, the output direct current voltage range of the charging circuit 1 is 0-20kV, a thyristor can be heated to more than 100 ℃, and the output high-frequency oscillation current is more than 10 kA.
The high-frequency oscillation circuit comprises a capacitor bank 2, a multi-gear inductor 3 and a second contactor, wherein the capacitor bank 2, the multi-gear inductor 3 and the second contactor are connected in series, the second contactor is connected with the control cabinet, and in addition, the multi-gear inductor 3 is connected with an overvoltage suppression circuit 4.
The capacitor group 2 comprises eight pulse capacitors, wherein the capacitance value of each pulse capacitor is 200 muf, the rated voltage is 20kV, the short-time rated current is 8kA, and one pulse capacitor or a plurality of pulse capacitors are connected in series or in parallel and then connected into a circuit during testing so as to meet the requirements of different oscillation frequencies.
The multi-gear inductor 3 is provided with four gears which are respectively 75 muH, 100 muH, 150 muH and 200 muH, and is simultaneously provided with a 25 muH inductor and a 60 muH inductor so as to meet the requirements of different oscillation frequencies.
Through the capacitance value to capacitor bank 2 and the inductance value regulation of many gears inductance 3, satisfy several hundred hertz to several kilohertz's high frequency oscillation's frequency demand, simultaneously, satisfy the demand that two-way opening current peak value > 10kA under this frequency.
The ac switching valve 6 is formed by antiparallel multi-stage thyristors, and has a function of rapidly turning off positive and negative half cycle currents, and in the test, the ac switching valve 6 serves as both a test sample and a switching device for generating oscillating current.
In addition, the measuring system 5 comprises a high-voltage probe, a low-voltage probe, a rogowski coil and a digital oscilloscope, wherein the voltage to ground of the alternating current switch valve 6 is detected through the high-voltage probe, a trigger signal of the alternating current switch valve 6 is monitored through the low-voltage probe, the current on the alternating current switch valve 6 is monitored through the rogowski coil, and the digital oscilloscope is connected with the high-voltage probe, the low-voltage probe and the rogowski coil, wherein the high-voltage probe is a 1000:1 high-voltage probe; the low-voltage probe is a low-voltage probe with a ratio of 10: 1; the Rogowski coil is a Rogowski coil with the voltage of 0.075 mV/A.
The invention relates to a method for testing the switching-on and switching-off characteristics of a valve thyristor in a high-temperature state, which comprises the following steps:
1) the control cabinet controls the conduction of the alternating current switch valve 6, the bypass switch is connected with the alternating current switch valve for conduction, the bypass switch 7 is closed, alternating current output by the heating power supply is applied to the alternating current switch valve 6 after being subjected to voltage regulation by a voltage regulator and voltage reduction by a transformer, voltage applied to the alternating current switch valve 6 is continuously increased, current on the alternating current switch valve 6 is increased, temperature is increased, meanwhile, the control cabinet detects the temperature of a thyristor in the alternating current switch valve 6 in real time through a temperature measuring instrument, and when the temperature of the thyristor in the alternating current switch valve 6 reaches a test required temperature, the bypass switch is disconnected to connect the alternating current switch valve and the bypass switch 7, so that the heating of the thyristor is completed;
2) the control cabinet controls the first contactor to be closed, alternating current output by the charging power supply is boosted by the power frequency boosting transformer, limited by the current limiting resistor and rectified by the rectifying silicon stack, then acts on the capacitor bank 2 through the first contactor, the capacitor bank 2 is charged, and the first contactor is disconnected after the capacitor bank 2 is charged;
3) and the control cabinet controls the second contactor to be closed, the voltage to ground of the alternating current switch valve 6 is monitored through the high-voltage probe, the trigger signal of the alternating current switch valve 6 is monitored through the low-voltage probe, the current on the alternating current switch valve 6 is monitored through the Rogowski coil, the monitored signal is displayed through the digital oscilloscope, and therefore the on-off characteristic parameters of the thyristor at the temperature required by the current test are measured and obtained.
Finally, it should be noted that before the test, the impedance of the thyristor in the ac switch valve 6 needs to be measured by a multimeter to determine whether the thyristor is damaged and turned on directly, so as to ensure the thyristor is in good condition, and in addition, it should be noted that the invention can measure the on-off characteristic parameters of the thyristor in the state of 40 ℃ to 90 ℃.
Claims (10)
1. A test circuit of on-off characteristics of a thyristor in a high-temperature state is characterized by comprising a control cabinet, a thyristor electric heating circuit (8), a charging circuit (1), a high-frequency oscillation circuit, an alternating-current switch valve (6), a bypass switch (7), a measuring system (5) and a temperature measuring instrument for detecting the temperature of the thyristor in the alternating-current switch valve (6), wherein the high-frequency oscillation circuit comprises a capacitor bank (2) and a multi-gear inductor (3), the charging circuit (1) is connected with the capacitor bank (2) in parallel, the high-frequency oscillation circuit is connected with the alternating-current switch valve (6) in parallel, a branch formed by connecting the thyristor electric heating circuit (8) and the bypass switch (7) in series is connected with the alternating-current switch valve (6) in parallel, the measuring system (5) is connected with the alternating-current switch valve (6), and the control cabinet is connected with the thyristor electric heating circuit (8), The charging circuit (1), the high-frequency oscillation circuit, the alternating current switch valve (6), the bypass switch (7), the measuring system (5) and the temperature measuring instrument are connected.
2. The thyristor on-off characteristic test circuit in a high temperature state according to claim 1, wherein the thyristor electric heating circuit (8) comprises a switch cabinet, a heating power supply, a voltage regulator, a transformer, a load resistor and a bypass switch connected with an alternating current switch valve, wherein the heating power supply is connected with the bypass switch through the voltage regulator, the transformer, the load circuit and the bypass switch connected with the alternating current switch valve, the switch cabinet is connected with the control cabinet, and the output end of the switch cabinet is connected with the control end of the bypass switch connected with the alternating current switch valve.
3. The thyristor on-off characteristic test circuit in a high temperature state according to claim 1, wherein the charging circuit (1) comprises a charging power supply, a power frequency step-up transformer, a current-limiting resistor, a silicon rectifier stack and a first contactor, wherein the charging power supply, the power frequency step-up transformer, the current-limiting resistor, the silicon rectifier stack and the first contactor are connected in series in sequence, and the control cabinet is connected with the first contactor.
4. The thyristor on-off characteristic test circuit in a high temperature state according to claim 3, wherein the high frequency oscillation circuit further comprises a second contactor, wherein the capacitor bank (2), the multi-step inductor (3) and the second contactor are connected in series, and the second contactor is connected with the control cabinet.
5. Thyristor on-off characteristic test circuit in high temperature state according to claim 4, characterized in that the multi-step inductance (3) is connected with an overvoltage suppression circuit (4).
6. The thyristor test circuit for on-off characteristics at high temperature according to claim 1, wherein the ac switching valve (6) is formed by antiparallel connection of multi-stage thyristors.
7. The thyristor on-off characteristic test circuit in a high temperature state according to claim 1, wherein the measurement system (5) comprises a high voltage probe, a low voltage probe, a rogowski coil and a digital oscilloscope, wherein the voltage to ground of the alternating current switching valve (6) is monitored by the high voltage probe, the trigger signal of the alternating current switching valve (6) is monitored by the low voltage probe, the current on the alternating current switching valve (6) is monitored by the rogowski coil, and the digital oscilloscope is connected with the high voltage probe, the low voltage probe and the rogowski coil.
8. A thyristor according to claim 1, wherein the temperature detector is a fluorescence temperature detector.
9. The thyristor on-off characteristic test circuit in a high temperature state according to claim 1, wherein the heating power supply, the voltage regulator, the transformer, the load resistor and the bypass switch are connected with the alternating current switch valve through cables with a through-flow diameter of more than 100 mm.
10. A testing method for the on-off characteristic of a thyristor in a high-temperature state is characterized by comprising the following steps:
1) the bypass switch (7) is closed by the control case, voltage is applied to the alternating current switch valve (6) through the thyristor electric heating loop (8), so that the temperature of the thyristor in the alternating current switch valve (6) is increased, meanwhile, the temperature of the thyristor in the alternating current switch valve (6) is detected by the control case in real time through the temperature detector, and the bypass switch (7) is disconnected when the temperature of the thyristor in the alternating current switch valve (6) reaches the test required temperature;
2) the control cabinet controls the charging circuit (1) to work, the capacitor bank (2) is charged through the charging circuit (1), and the charging circuit (1) is closed after the capacitor bank (2) is charged;
3) a loop formed by the capacitor bank (2), the multi-gear inductor (3) and the alternating current switch valve (6) is conducted, the voltage to ground of the alternating current switch valve (6), a trigger signal of the alternating current switch valve (6) and the current on the alternating current switch valve (6) are monitored through the measuring system (5), and the thyristor is switched on and off according to characteristic parameters at the temperature required by the current test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111396333.7A CN114137380B (en) | 2021-11-23 | 2021-11-23 | Test loop and method for switching-on and switching-off characteristics of thyristor in high-temperature state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111396333.7A CN114137380B (en) | 2021-11-23 | 2021-11-23 | Test loop and method for switching-on and switching-off characteristics of thyristor in high-temperature state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114137380A true CN114137380A (en) | 2022-03-04 |
| CN114137380B CN114137380B (en) | 2024-04-30 |
Family
ID=80391007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111396333.7A Active CN114137380B (en) | 2021-11-23 | 2021-11-23 | Test loop and method for switching-on and switching-off characteristics of thyristor in high-temperature state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114137380B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1123645A (en) * | 1997-06-27 | 1999-01-29 | Tanika Denki Hanbai Kk | Short circuit monitor circuit |
| CN1818695A (en) * | 2006-03-17 | 2006-08-16 | 中国电力科学研究院 | Crystal brake trigger sequence in overcurrent experimental device |
| CN101169469A (en) * | 2007-11-20 | 2008-04-30 | 中国电力科学研究院 | High voltage tandem thyristor valve unlocking overcurrent test method |
| CN101917124A (en) * | 2010-06-30 | 2010-12-15 | 国家电网公司 | Power supply device |
| US20110273200A1 (en) * | 2009-12-04 | 2011-11-10 | China Electric Power Research Institute | Fault Current Test Equipment of Direct Current Thyristor Valve |
| CN103176124A (en) * | 2013-02-27 | 2013-06-26 | 国网智能电网研究院 | High-power thyristor turn-off characteristic test method based on half-wave method |
| WO2015192619A1 (en) * | 2014-06-17 | 2015-12-23 | 国家电网公司 | Synthesis loop-based testing apparatus and method for forward recovery characteristic of thyristor |
| CN105203938A (en) * | 2014-06-17 | 2015-12-30 | 国家电网公司 | High-power thyristor forward recovery characteristic detection device and detection method |
| CN108957279A (en) * | 2018-09-05 | 2018-12-07 | 安徽省华腾农业科技有限公司 | The measurement method of thyristor impulse voltage generator impact thyristor |
| CN112904191A (en) * | 2021-01-18 | 2021-06-04 | 西安西电电力系统有限公司 | High-frequency oscillation test circuit based on alternating-current switch valve and test method |
-
2021
- 2021-11-23 CN CN202111396333.7A patent/CN114137380B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1123645A (en) * | 1997-06-27 | 1999-01-29 | Tanika Denki Hanbai Kk | Short circuit monitor circuit |
| CN1818695A (en) * | 2006-03-17 | 2006-08-16 | 中国电力科学研究院 | Crystal brake trigger sequence in overcurrent experimental device |
| CN101169469A (en) * | 2007-11-20 | 2008-04-30 | 中国电力科学研究院 | High voltage tandem thyristor valve unlocking overcurrent test method |
| US20110273200A1 (en) * | 2009-12-04 | 2011-11-10 | China Electric Power Research Institute | Fault Current Test Equipment of Direct Current Thyristor Valve |
| CN101917124A (en) * | 2010-06-30 | 2010-12-15 | 国家电网公司 | Power supply device |
| CN103176124A (en) * | 2013-02-27 | 2013-06-26 | 国网智能电网研究院 | High-power thyristor turn-off characteristic test method based on half-wave method |
| WO2015192619A1 (en) * | 2014-06-17 | 2015-12-23 | 国家电网公司 | Synthesis loop-based testing apparatus and method for forward recovery characteristic of thyristor |
| CN105203938A (en) * | 2014-06-17 | 2015-12-30 | 国家电网公司 | High-power thyristor forward recovery characteristic detection device and detection method |
| CN108957279A (en) * | 2018-09-05 | 2018-12-07 | 安徽省华腾农业科技有限公司 | The measurement method of thyristor impulse voltage generator impact thyristor |
| CN112904191A (en) * | 2021-01-18 | 2021-06-04 | 西安西电电力系统有限公司 | High-frequency oscillation test circuit based on alternating-current switch valve and test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114137380B (en) | 2024-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104181490B (en) | A kind of big current temporary state characteristic detection device of electronic current mutual inductor | |
| CN111239577A (en) | High-voltage high-power thyristor leakage current testing system and method thereof | |
| CN106483408B (en) | Detection method for high-power direct-current electrical equipment | |
| CN114264947A (en) | Bypass switch testing device and testing method for flexible direct current power module | |
| CN111551798A (en) | Low-voltage energy storage type high-power short circuit testing device and testing method | |
| CN114295924A (en) | System and method for testing overall performance of dynamic voltage restorer | |
| CN112083231B (en) | Generator stator core loss test device capable of reducing closing impact current | |
| Dongye et al. | A 4kV/100A SiC MOSFETs-based solid state DC circuit breaker with low stray inductances and powered by a load-independent wireless power transfer system | |
| CN114397517A (en) | Photovoltaic inverter test system | |
| CN201681126U (en) | Portable lighting protection testing device | |
| CN117471213A (en) | Testing device and testing method for high-voltage pulse capacitor | |
| CN114137380A (en) | Testing loop and method for on-off characteristic of thyristor in high-temperature state | |
| CN103308740A (en) | Anti-interference test method for DC (direct current) resistance of shunt reactor of the voltage of 35 kilovolts | |
| Tanta et al. | A novel hardware protection scheme for a modular multilevel converter half-bridge submodule | |
| CN112562965B (en) | Pre-magnetizing method for serially connecting small-capacity transformer on marine nuclear power platform | |
| Anurag et al. | A medium voltage dual active bridge converter based on Gen-3 10 kV SiC MOSFETs | |
| CN108508244B (en) | Heavy current generating device and heavy current generating method thereof | |
| CN214225406U (en) | Test system for current transformer | |
| Chen et al. | Hardware Testing Methodology for Wide Bandgap High Power Converters | |
| CN113176457A (en) | Anode reactor electrical performance test system and method | |
| Xu et al. | A loss measurement approach of power magnetic components under practical power electronics conditions | |
| CN104181417B (en) | A kind of transient-wave circuit of electronic current mutual inductor big electric current synthesis | |
| CN110780236A (en) | Power line pressurization through-flow test device | |
| CN217060426U (en) | Test device for on-load tap-changer switching test of power transformer | |
| CN219245681U (en) | Comprehensive performance test device for double-split transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |