CN203894381U - Synthesis loop-based testing apparatus for forward recovery characteristic of thyristor - Google Patents
Synthesis loop-based testing apparatus for forward recovery characteristic of thyristor Download PDFInfo
- Publication number
- CN203894381U CN203894381U CN201420321412.0U CN201420321412U CN203894381U CN 203894381 U CN203894381 U CN 203894381U CN 201420321412 U CN201420321412 U CN 201420321412U CN 203894381 U CN203894381 U CN 203894381U
- Authority
- CN
- China
- Prior art keywords
- thyristor
- test product
- damping
- recovery characteristic
- voltage source
- 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.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 13
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 13
- 238000013016 damping Methods 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 239000004065 semiconductor Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The utility model relates to a testing apparatus of a direct-current power transmission converter valve, particularly to a synthesis loop-based testing apparatus for a forward recovery characteristic of a thyristor. The testing apparatus comprises a constant-current voltage source, a sample thyristor T, a diode D, an adjustable capacitor C, an adjustable saturable reactor L, a heating circuit, an impulse generator and a damping loop. According to the technical scheme, two sets of power supply systems are used for providing a charging voltage and a forward voltage for the sample thyristor. During testing, the current outputted by the constant-current voltage source and the voltage outputted by the impulse generator are exerted on a tested thyristor alternately. Therefore, the requirement of the forward recovery characteristic testing of the high-power semiconductor device on the conditions of different voltages, different frequencies, different trigger signals, different junction temperatures, different current peak values, and different di/dt conditions can be met. The testing method is simple and can be implemented easily; the needed equipment capacity is low; and the apparatus cost is low.
Description
Technical field
The utility model relates to the proving installation of direct-current transmission converter valve, is specifically related to a kind of thyristor forward recovery characteristic test device based on synthesis loop.
Background technology
The lifting of thyristor capacity makes its range of application be extended to field of power transmission.At present, taking high-pressure series thyristor as the worldwide fast development of basic high voltage dc transmission technology, especially applied on a large scale in China, and brought into play good technical advantage at long distance power transmission and large scale electric network aspect interconnected, obtained good economic benefit.Along with the raising of direct-current transmission voltage, transmission capacity, the operational reliability of the key equipment DC converter valve of DC transmission system is most important to system safety operation, and the turn-off characteristic of converter valve directly has influence on converter valve reliability of operation.
Commutation failure is most common failure in HVDC (High Voltage Direct Current) transmission system, can cause adverse consequencess such as straight-flow system lower voltage, electric current increase, transmission power minimizing, the converter valve lost of life.The straight-flow system that commutation failure causes continuously or is simultaneously stopped transport the safety economy stable operation to social is caused and had a strong impact on.The main cause of commutation failure is that thyristor bears the forward voltage that external circuit brings in forward recovery characteristic, and therefore, research thyristor forward recovery characteristic has very important significance to suppressing commutation failure.
Often be confined to measure thyristor self for the detection of converter valve forward recovery characteristic, equivalence is desirable not to the utmost, needs three to four power supplys simultaneously, controls complex time, invests larger.Therefore be necessary to provide a kind of thyristor forward recovery characteristic detection device with good equivalence, the parameter of converter valve operation is converted on single thyristor level, by changing impressed voltage value, capacitor and inductor parameter and junction temperature, survey the impact of various factors on forward recovery characteristics under various operating modes, confirmed the converter valve forward recovery characteristic of equivalence under actual condition.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of thyristor forward recovery characteristic test device and method of testing based on synthesis loop, adopt two cover power-supply systems (two cover power-supply systems surprisingly also comprise surge generator except constant current voltage source) to be respectively test product thyristor charging voltage, forward high pressure are provided, when test, the alternating voltage of the electric current of constant current source output and impulse voltage generator output is put on tested thyristor.
The purpose of this utility model is to adopt following technical proposals to realize:
The utility model provides a kind of high-power thyristor forward recovery characteristic test device based on synthesis loop, its improvements are, described proving installation comprises constant current voltage source, test product thyristor T, diode D, adjustable condenser C, adjustable saturable reactor L, heating circuit, surge generator and damping circuit; One end of described adjustable condenser C is connected with the positive pole of constant current voltage source, one end of reactor L1 is connected with the positive pole of constant current voltage source, the anodic bonding of the other end of reactor L1 and diode D, the negative electrode of described diode D is connected with one end of adjustable saturable reactor L and one end of surge generator respectively; It is in parallel with described surge generator after the other end of described adjustable saturable reactor L is connected with damping circuit-test product thyristor T parallel branch;
Described damping circuit-test product thyristor T parallel branch is made up of damping circuit in parallel and test product thyristor T, and described test product thyristor T is in parallel with heating circuit;
Negative electrode, the damping resistance of damping circuit and the equal ground connection of the other end of surge generator of the negative pole of described constant current voltage source, the other end of adjustable condenser C, test product thyristor T.
Further, described heating circuit comprises heating power supply and the resistance wire of series connection, adjusts the junction temperature size at test product thyristor T two ends by the size of resistance wire in automatic adjusting heating circuit; Heating circuit has the function of constant temperature;
Described damping circuit comprises damping capacitor and the damping resistance of series connection.
Further, described surge generator all comprises the generator body, voltage divider and the digitized wave forms register system that connect successively.
Compared with the prior art, the beneficial effect that the utility model reaches is:
1, this device topological structure complete function, can meet large power semiconductor device is carried out to forward recovery attribute testing under different voltage, different frequency, different trigger pip, different junction temperature, different current peak and different di/dt condition;
2, the novel high-power thyristor forward recovery characteristic test device that the utility model provides, is simple and easy to realize, and equipment needed thereby capacity is little, and installation cost is low;
3, the proving installation based on synthesis loop method, triggers thyristor and surge generator ignition signal and controls by charge power supply is unified, and sequential is simple.
4, the proving installation based on synthesis loop method adopts surge generator, can be by regulating wave front resistance and inductance, and realization applies forward voltage, the mode of different dv/dt at thyristor two ends flexible, applied widely.
5, the proving installation based on synthesis loop method, adopting thermostat, can be measured the forward recovery characteristic under different temperatures, can better reflect the actual condition of converter valve.
Brief description of the drawings
Fig. 1 is the thyristor forward recovery characteristic test device schematic diagram based on synthesis loop method that the utility model provides;
Fig. 2 is test product thyristor T exemplary voltage waveforms figure under the method for testing that provides of the utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As shown in Figure 1, this proving installation comprises constant current voltage source, test product thyristor T, diode D, adjustable condenser C, adjustable saturable reactor L, heating circuit, surge generator and damping circuit to the thyristor forward recovery characteristic test device schematic diagram based on synthesis loop method that the utility model provides; One end of described adjustable condenser C is connected with the positive pole of constant current voltage source, one end of reactor L1 is connected with the positive pole of constant current voltage source, the anodic bonding of the other end of reactor L1 and diode D, the negative electrode of described diode D is connected with one end of adjustable saturable reactor L and one end of surge generator respectively; It is in parallel with described surge generator after the other end of described adjustable saturable reactor L is connected with damping circuit-test product thyristor T parallel branch;
Described damping circuit-test product thyristor T parallel branch is made up of damping circuit in parallel and test product thyristor T, and described test product thyristor T is in parallel with heating circuit; Test product thyristor T is heated to test junction temperature by described heating circuit;
Negative electrode, the damping resistance of damping circuit and the equal ground connection of the other end of surge generator of the negative pole of described constant current voltage source, the other end of adjustable condenser C, test product thyristor T.
Heating circuit comprises heating power supply and the resistance wire of series connection, adjusts the junction temperature size at test product thyristor T two ends by the size of resistance wire in automatic adjusting heating circuit; Heating circuit has the function of constant temperature; Described damping circuit comprises damping capacitor and the damping resistance of series connection; Described damping circuit is for tuning, filtering and prevent dash current.
Surge generator all comprises the generator body, voltage divider and the digitized wave forms register system that connect successively.
The utility model also provides a kind of method of testing of the thyristor forward recovery characteristic test device based on synthesis loop method, and Fig. 2 has provided the waveform of test product valve electric current, voltage under the basic working modes of this proving installation.Now, according to the basic functional principle of circuit sequence simple declaration proving installation, comprise the steps:
(1) t0 moment power supply starts the charging to adjustable condenser C, and the voltage of adjustable condenser C reaches required trial voltage;
(2) t1 time trigger test product thyristor T, test product thyristor T bears from adjustable condenser C by the half-sinusoid electric current of reactor L1 discharge generation;
(3) the t2 moment is flow through the current over-zero of test product thyristor T, starts to flow through inverse current, bears back-pressure;
(4) t3 moment test product thyristor T inverse current zero passage, test product thyristor T bears back-pressure and turn-offs;
(5) t4 moment surge generator igniting, applies the forward voltage with regulation amplitude and rate of change at test product thyristor T two ends.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement embodiment of the present utility model, and do not depart from any amendment of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. the high-power thyristor forward recovery characteristic test device based on synthesis loop, it is characterized in that, described proving installation comprises constant current voltage source, test product thyristor T, diode D, adjustable condenser C, adjustable saturable reactor L, heating circuit, surge generator and damping circuit; One end of described adjustable condenser C is connected with the positive pole of constant current voltage source, one end of reactor L1 is connected with the positive pole of constant current voltage source, the anodic bonding of the other end of reactor L1 and diode D, the negative electrode of described diode D is connected with one end of adjustable saturable reactor L and one end of surge generator respectively; It is in parallel with described surge generator after the other end of described adjustable saturable reactor L is connected with damping circuit-test product thyristor T parallel branch;
Described damping circuit-test product thyristor T parallel branch is made up of damping circuit in parallel and test product thyristor T, and described test product thyristor T is in parallel with heating circuit;
Negative electrode, the damping resistance of damping circuit and the equal ground connection of the other end of surge generator of the negative pole of described constant current voltage source, the other end of adjustable condenser C, test product thyristor T.
2. high-power thyristor forward recovery characteristic test device as claimed in claim 1, it is characterized in that, described heating circuit comprises heating power supply and the resistance wire of series connection, adjusts the junction temperature size at test product thyristor T two ends by the size of resistance wire in automatic adjusting heating circuit; Heating circuit has the function of constant temperature;
Described damping circuit comprises damping capacitor and the damping resistance of series connection.
3. high-power thyristor forward recovery characteristic test device as claimed in claim 1, is characterized in that, described surge generator all comprises the generator body, voltage divider and the digitized wave forms register system that connect successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420321412.0U CN203894381U (en) | 2014-06-17 | 2014-06-17 | Synthesis loop-based testing apparatus for forward recovery characteristic of thyristor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420321412.0U CN203894381U (en) | 2014-06-17 | 2014-06-17 | Synthesis loop-based testing apparatus for forward recovery characteristic of thyristor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203894381U true CN203894381U (en) | 2014-10-22 |
Family
ID=51720763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420321412.0U Expired - Lifetime CN203894381U (en) | 2014-06-17 | 2014-06-17 | Synthesis loop-based testing apparatus for forward recovery characteristic of thyristor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203894381U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107037288A (en) * | 2017-04-28 | 2017-08-11 | 南京南瑞继保电气有限公司 | A kind of damping module test system and method for testing |
| CN110907786A (en) * | 2018-09-17 | 2020-03-24 | 国网浙江省电力公司 | Method for measuring electrothermal coupling characteristic of thyristor device |
| CN111856180A (en) * | 2020-07-08 | 2020-10-30 | 北京电力设备总厂有限公司 | Device and method for testing electromagnetic interference of high-voltage isolating switch on-off |
| CN115173535A (en) * | 2022-09-08 | 2022-10-11 | 苏州浪潮智能科技有限公司 | Discharge circuit of energy storage module, standby power capacity determination method and related components |
-
2014
- 2014-06-17 CN CN201420321412.0U patent/CN203894381U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105182222A (en) * | 2014-06-17 | 2015-12-23 | 国家电网公司 | Device and method for testing forward recovery characteristics of thyristor based on synthesis loop |
| CN107037288A (en) * | 2017-04-28 | 2017-08-11 | 南京南瑞继保电气有限公司 | A kind of damping module test system and method for testing |
| CN107037288B (en) * | 2017-04-28 | 2023-09-08 | 南京南瑞继保电气有限公司 | Damping module testing system and testing method |
| CN110907786A (en) * | 2018-09-17 | 2020-03-24 | 国网浙江省电力公司 | Method for measuring electrothermal coupling characteristic of thyristor device |
| CN110907786B (en) * | 2018-09-17 | 2022-03-22 | 国网浙江省电力公司 | Method for measuring electrothermal coupling characteristic of thyristor device |
| CN111856180A (en) * | 2020-07-08 | 2020-10-30 | 北京电力设备总厂有限公司 | Device and method for testing electromagnetic interference of high-voltage isolating switch on-off |
| CN111856180B (en) * | 2020-07-08 | 2022-11-08 | 北京电力设备总厂有限公司 | Device and method for testing electromagnetic interference of high-voltage isolating switch on-off |
| CN115173535A (en) * | 2022-09-08 | 2022-10-11 | 苏州浪潮智能科技有限公司 | Discharge circuit of energy storage module, standby power capacity determination method and related components |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105182222A (en) | Device and method for testing forward recovery characteristics of thyristor based on synthesis loop | |
| CN203894381U (en) | Synthesis loop-based testing apparatus for forward recovery characteristic of thyristor | |
| CN103176117B (en) | A kind of high-power thyristor turn-off characteristic test device based on half-wave method | |
| CN103078526A (en) | Current source type rectifier and grid-connected control method based on virtual resistor | |
| CN103176124A (en) | High-power thyristor turn-off characteristic test method based on half-wave method | |
| CN105375777A (en) | Constant voltage output circuit, flyback switching power supply and electronic device thereof | |
| CN103944440A (en) | Electrical source emission device and control method with soft chopping wave characteristic | |
| CN103490653A (en) | Secondary ripple reduction control system and control method for photovoltaic grid-connected currents and direct current voltage | |
| CN103033697A (en) | Capacitor aging test circuit and aging system | |
| CN104158222A (en) | Grid-connected inverter direct power control method with voltage compensation | |
| CN203965489U (en) | A kind of shelf depreciation high voltage pulse generation device | |
| CN103134994A (en) | Testing circuit based on double level laminated busbar random induction and method thereof | |
| CN204855627U (en) | Isolated alternating voltage sampling circuit | |
| CN101702012B (en) | Apparent charge calibrator for local discharge capacity measurement | |
| CN105203938A (en) | High-power thyristor forward recovery characteristic detection device and detection method | |
| CN103248106B (en) | Novel electric automobile battery charger based on single-cycle control strategy | |
| CN202903906U (en) | Capacitor aging test circuit | |
| CN203894382U (en) | Detector for forward recovery characteristic of large-power thyristor | |
| CN204517693U (en) | A kind of two flyback quasi resonant convertor of series connection being applicable to neutral-point-clamped DC bus | |
| CN103986362A (en) | Z-source inverter circuit | |
| CN103199686A (en) | Switching power supply protective circuit | |
| CN103577708A (en) | Converter valve large-angle operation capacity analysis method | |
| CN207053403U (en) | The low-power dissipation high pressure power module of Geiger Miller detector | |
| CN103269059B (en) | A kind of switching circuit improving overvoltage protection precision | |
| CN206178311U (en) | Flash lamp module and flashlight power module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170531 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: CHINA-EPRI ELECTRIC POWER ENGINEERING Co.,Ltd. Patentee after: State Grid Corporation of China Co-patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: STATE GRID SMART GRID Research Institute Patentee before: State Grid Corporation of China Co-patentee before: CHINA-EPRI ELECTRIC POWER ENGINEERING Co.,Ltd. Co-patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER Co. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |