CN201130240Y - Experimental device for synthesizing high pressure series thyristor valve - Google Patents
Experimental device for synthesizing high pressure series thyristor valve Download PDFInfo
- Publication number
- CN201130240Y CN201130240Y CNU2007201900614U CN200720190061U CN201130240Y CN 201130240 Y CN201130240 Y CN 201130240Y CN U2007201900614 U CNU2007201900614 U CN U2007201900614U CN 200720190061 U CN200720190061 U CN 200720190061U CN 201130240 Y CN201130240 Y CN 201130240Y
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Abstract
The utility model discloses a high-voltage series thyristor-valve composite experimental device, which comprises a current-generating circuit and a voltage- generating circuit. In the current-generating circuit, the power supply is connected in the circuit via a transformer T1, the transformer T1 is connected with an inductor L2, an ampere meter and a current divider S1 in turn, and then connected with two parallel branches, one branch is grounded via a switch K1, and the other branch is grounded via a valve VI, a testing valve VT and a current divider S2; in the voltage-generating circuit, the power supply is connected in the circuit via a transformer T2, and then connected with two parallel branches, that is, a branch with an inductor LE1, a valve VE1, a resistor RE1 and a diode D1 connected in series, in parallel with a branch with an inductor LE2, a valve VE2, a resistor RE2 and a diode D2 connected in series; a capacitor Ce1 is grounded via the crunode between the valve VE1 and the resistance RE1, a capacitor Ce2 is grounded via the crunode between the valve VE2 and the resistor RE2. The utility model realizes the utmost safety and flexibility of the test.
Description
Technical field
The utility model relates to the electron electric power technology, relates in particular to a kind of high voltage tandem thyristor valve compound experiment device.
Background technology
The progressively popularization of in electric system, using along with Power Electronic Technique, become the core component of various high power electronic equipments based on the high-pressure valve of thyristor series average-voltage technology, SVC (static varcompensator for example, Static Var Compensator) valve, TCSC (thyristor controlled series capacitor, thyristor controlled series capacitor) valve, HVDC (high voltage direct current, high voltage direct current) valve etc.And running test is to be related to improve various high voltage tandem thyristor valve designs and manufacture level, improves the important tests means of its reliability.At present generally adopt synthetic test method to carry out the running test of high voltage tandem thyristor valve in the world.
Because the type difference of high voltage tandem thyristor valve, also there is bigger difference in its technical requirement for the compound whole-working order testing device that is used for carrying out running test.
Though various synthetic test device has been arranged both at home and abroad, its running test to SVC valve, TCSC valve and HVDC valve is always given priority to, and can not satisfy simultaneously.The experiment method that prior art mesohigh series thyristor valve compound experiment device adopts mainly contains following several, is illustrated respectively below:
First kind of experiment method is the full test method of carrying, and this mode is owing to adopt the single supply energy supply, so the test capability in loop is limited by power supply, and the installation cost height.
Second kind of experiment method is oscillation boosting formula test method, and this mode is a kind of simple equivalence of running test, and the actual condition of equivalent valve operation that can not be good can not the comprehensive assessment valve sample tolerates the ability of different operating mode intensity.
The third experiment method is the mode of oscillation boosting and DC current source composite testing, this mode is higher to the accuracy requirement that triggers the sequential cooperation, and the version of this circuit can only be fit to the running test of retaining valve test product, can only adopt the mode of equivalence to take into account to the running test of two-way valve test product.
The 4th kind of experiment method be for directly boosting and the mode of DC current source composite testing, the high-voltage strength that the shortcoming of this mode need be born the twice trial voltage for the valve maximum, and need the power-supply system of high voltage grade.
The 5th kind of experiment method is the mode of oscillation boosting and ac current source composite testing, and the test capability of this mode is low, and test method is few, and the test product narrow range can not realize the work wave of valve sample fully, and the equivalence of its test is poor.
The utility model content
The utility model provides a kind of high voltage tandem thyristor valve compound experiment device, can satisfy the running experiment requirement of SVC valve, TCSC valve and HVDC valve simultaneously, accomplishes that simultaneously circuit structure is simple.
A kind of high voltage tandem thyristor valve compound experiment device comprises current generating circuit and voltage generation circuit, wherein,
Current generating circuit is by transformer T1, inductance L 2, shunt S1, shunt S2, the oscillograph on valve VI and shunt S1 and the shunt S2 is formed, power supply is by transformer T1 place in circuit, transformer T1 connects inductance L 2 successively, and reometer and shunt S1 connect two parallel branches afterwards, article one, branch road is by K switch 1 ground connection, and another branch road is by valve VI, test product valve VT and shunt S2 ground connection;
Voltage generation circuit is by transformer T2, inductance L E1, valve VE1, resistance R E1, diode D1, inductance L E2, valve VE2, resistance R E2, diode D2, capacitor C e1 and capacitor C e2 form, power supply connects two parallel branches then by transformer T2 place in circuit, and is promptly in parallel with the branch road that inductance L E2, valve VE2, resistance R E2 and diode D2 are composed in series by inductance L E1, valve VE1, resistance R E1 and diode D1 series connection back, capacitor C e1 is by the node ground connection between valve VE1 and the resistance R E1, and capacitor C e2 is by the node ground connection between valve VE2 and the resistance R E2.
Described test product valve VT is in parallel with resistance R d, and the branch road parallel connection of connecting with capacitor C s and resistance R s has oscillograph on the resistance R d then, can measure the voltage at capacitor C s two ends by voltage table.
At first trigger in the same way valve VI and the side valve of test product valve VT, trigger angle is spent less than 180 more than or equal to 90 degree, current lead-through, to current zero-crossing point, the valve that has triggered turn-offs naturally, triggers valve VE1 or valve VE2 this moment again, back-pressure is added on the test product valve VT, then trigger another side valve of valve VI and test product valve VT, conducting inverse current, thereby but the operating mode that the simulated high-pressure series thyristor valve is experienced in actual motion.
Described high voltage tandem thyristor valve is Static Var Compensator valve or thyristor controlled series capacitor valve or HVDC-valve.
High voltage tandem thyristor valve compound experiment device of the present utility model has taken into full account SVC valve, TCSC valve and the intensity of HVDC valve use occasion and the technical requirement of running test thereof, by rational dirigibility design, finally formed and satisfied SVC valve, TCSC valve and HVDC valve the simplest compound experiment device for the requirement of each side such as electric parameters parameter and waveform, separate flexibly and synthesize owing to what circuit was built simultaneously, realized the security to greatest extent and the dirigibility of test.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model high voltage tandem thyristor valve compound experiment device;
Fig. 2 A is the one pole basic structure synoptic diagram of SVC valve and the series connection of TCSC valve;
Fig. 2 B is the one pole basic structure synoptic diagram of HVDC valve series connection;
Fig. 3 is the circuit simulation oscillogram of the utility model high voltage tandem thyristor valve compound experiment device.
Embodiment
Below in conjunction with each accompanying drawing specific implementation process of the present utility model is further described in detail.
See also Fig. 1, this figure is the circuit theory diagrams of the utility model high voltage tandem thyristor valve compound experiment device, and as seen from the figure, the utility model comprises current generating circuit and voltage generation circuit two parts, wherein,
The left side is a current generating circuit, by transformer T1, and inductance L 2, shunt S1, shunt S2, the oscillograph on valve VI and S1, the S2 is formed.Power supply can be measured the magnitude of voltage of access with voltage table, and debug by transformer T1 place in circuit.Transformer T1 end connects inductance L 2 successively, reometer (being used to measure main circuit current), and shunt S1 connects two parallel branches afterwards, and a branch road is by K switch 1 ground connection, and another branch road is by valve VI, test product valve VT and shunt S2 ground connection.Wherein be parallel with oscillograph on shunt S1 and the shunt S2, be respectively applied for the waveform that detects on shunt S1 and the shunt S2.
The right side is a voltage generation circuit, by transformer T2, and inductance L E1, valve VE1, resistance R E1, diode D1, inductance L E2, valve VE2, resistance R E2, diode D2, capacitor C e1 and capacitor C e2 form.Power supply connects two parallel branches then by transformer T2 place in circuit, and is promptly in parallel with the series arm of inductance L E2, valve VE2, resistance R E2 and diode D2 after inductance L E1, valve VE1, resistance R E1 and the diode D1 series connection.In these two branch roads, capacitor C e1 is by the node ground connection between valve VE1 and the resistance R E1, for filling positive electricity electric capacity; Capacitor C e2 is by the node ground connection between valve VE2 and the resistance R E2, for filling negative electricity electric capacity.
See also Fig. 2 A and Fig. 2 B, wherein Fig. 2 A is the one pole basic structure synoptic diagram of SVC valve and the series connection of TCSC valve, and Fig. 2 B is the one pole basic structure synoptic diagram of HVDC valve series connection.In service at actual valve, generally be the series connection of 6～12 valves, each level all has Rs, and the Cs series connection is in parallel with Rd and valve then, plays all pressure effects, guarantees that voltage equates on the valve of each grade.In the circuit of Fig. 1, capacitor C s and resistance R s series connection, in parallel with resistance R d in parallel with valve VT then, be duty for equivalent simulation actual motion mesohigh series thyristor valve, Cs, Rs, and the value of Rd will change along with the parameter of different valves and become.Oscillograph is arranged on the Rd, and the voltage at capacitor C s two ends can be measured by voltage table.
Following table is the triggering time-scale of the utility model high voltage tandem thyristor valve compound experiment device:
Ginseng sees the above table as can be known, the circuit triggers sequential of the utility model high voltage tandem thyristor valve compound experiment device is specially: a t0 time trigger VI in the same way and the side valve of test product valve VT, less than 180 degree, current lead-through is shown in t0 among Fig. 3～t1 section current curve more than or equal to 90 degree for trigger angle.To current zero-crossing point, the valve that has triggered turn-offs naturally, trigger valve VE1 or VE2 this moment again, back-pressure is added on the test product valve VT, can simulate the actual motion intensity of TCSC valve, SVC valve or HVDC valve, t1 among Fig. 3～t2 section curve is the back-pressure that is added on the test product valve VT, at another side valve of t2 time trigger VI and test product valve VT conducting inverse current again, so just can simulate the operating mode that TCSC valve, SVC valve or HVDC valve are experienced in actual motion.
The utility model high voltage tandem thyristor valve compound experiment device can carry out running experiment to SVC valve, TCSC valve and HVDC valve by the real working condition of simulated high-pressure series thyristor valve, be that electric current is when non-vanishing, voltage is zero, and during the electric current vanishing, voltage jump is the plus or minus value.Because in the voltage generation circuit, capacitor C e1 goes up voltage for just, and capacitor C e2 goes up voltage for negative, can be by control VE1, and the conducting of VE2 is controlled the magnitude of voltage that is added on the test product valve with shutoff, and the ratio in current zero transit time in shared whole cycle is a angle value.
The voltage generation circuit part is passed through silicon stack D1 by power supply in the test process, the D2 rectification, and to Ce1, the charging of Ce2 electric capacity forms positive and negative voltage sources; High voltage, current generating circuit are by power supply and inductance, and resistance produces electric current, thus the situation of testing high voltage series thyristor valve under different electric current and voltages.
The utility model high voltage tandem thyristor valve compound experiment device is carried out by a controller in order to the process that SVC valve, TCSC valve and HVDC valve carry out electric current and voltage tolerance strength test, it has the test routine that sets in advance, for example the SVC valve is tested, after the SVC valve placed the VT position, carry out following operation:
Step 10, the rated current of pressing test product valve calculate institute's making alive value according to test current L2, and this value is the output voltage of transformer T1;
Step 11, press the withstand voltage peak value of test product valve, calculate the voltage that transformer T2 should export, be i.e. the magnitude of voltage that calculates T2 by the concrete parameter and the voltage distribution of hookup;
Step 12, shunt S1 and S2 and divider resistance R are provided with in position, make oscillograph OSC fully typing be added to electric current and voltage on the test product valve;
Step 13, controller starting VI and VT detect electric current, and timing and synchronous;
Step 14, when electric current drops to zero, some microseconds of delaying time, trigger voltage valve VE2 produces the secondary voltage value, and timing, starts next step after arriving phasing degree a;
Step 15, after arriving phasing degree a, trigger VI, at this time VT is reverse, forms inverse current;
Step 16, when inverse current drops to zero starting VE1, form the forward voltage waveform.
By analysis, can find out whether test product valve meets working stamndard to test waveform.
For TCSC valve and HVDC valve, concrete test procedure is identical with the SVC valve, do not exist together and be its course of action and phase place, because closing the institute's making alive of having no progeny at test current, TCSC valve and HVDC valve can just can bear, and SVC valve institute's making alive after electric current closes section is a negative voltage, therefore only need in the test press voltage-phase and size, be provided with that transformer is exported and controller can be finished in proper order SVC valve, TCSC valve and HVDC valve are carried out running experiment.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (3)
1. a high voltage tandem thyristor valve compound experiment device is characterized in that, comprises current generating circuit and voltage generation circuit, wherein,
Current generating circuit is by transformer T1, inductance L 2, shunt S1, shunt S2, the oscillograph on valve VI and shunt S1 and the shunt S2 is formed, power supply is by transformer T1 place in circuit, transformer T1 connects inductance L 2 successively, and reometer and shunt S1 connect two parallel branches afterwards, article one, branch road is by K switch 1 ground connection, and another branch road is by valve VI, test product valve VT and shunt S2 ground connection;
Voltage generation circuit is by transformer T2, inductance L E1, valve VE1, resistance R E1, diode D1, inductance L E2, valve VE2, resistance R E2, diode D2, capacitor C e1 and capacitor C e2 form, power supply connects two parallel branches then by transformer T2 place in circuit, and is promptly in parallel with the branch road that inductance L E2, valve VE2, resistance R E2 and diode D2 are composed in series by inductance L E1, valve VE1, resistance R E1 and diode D1 series connection back, capacitor C e1 is by the node ground connection between valve VE1 and the resistance R E1, and capacitor C e2 is by the node ground connection between valve VE2 and the resistance R E2.
2. device as claimed in claim 1 is characterized in that, described test product valve VT is in parallel with resistance R d, and the branch road parallel connection of connecting with capacitor C s and resistance R s has oscillograph on the resistance R d then, can measure the voltage at capacitor C s two ends by voltage table.
3. device as claimed in claim 1 or 2 is characterized in that, described high voltage tandem thyristor valve is Static Var Compensator valve or thyristor controlled series capacitor valve or HVDC-valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201900614U CN201130240Y (en) | 2007-11-08 | 2007-11-08 | Experimental device for synthesizing high pressure series thyristor valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201900614U CN201130240Y (en) | 2007-11-08 | 2007-11-08 | Experimental device for synthesizing high pressure series thyristor valve |
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| CN201130240Y true CN201130240Y (en) | 2008-10-08 |
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| CNU2007201900614U Expired - Lifetime CN201130240Y (en) | 2007-11-08 | 2007-11-08 | Experimental device for synthesizing high pressure series thyristor valve |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710159B (en) * | 2009-12-04 | 2011-12-28 | 中国电力科学研究院 | Novel direct-current converter valve test unit |
| CN102707163A (en) * | 2012-01-20 | 2012-10-03 | 荣信电力电子股份有限公司 | Experimental station for detecting silicon controlled valve bank |
| CN102749540A (en) * | 2012-07-03 | 2012-10-24 | 中电普瑞科技有限公司 | Testing device and method for hierarchical controllable shunt reactor valve control system |
| WO2013107104A1 (en) * | 2012-01-20 | 2013-07-25 | 荣信电力电子股份有限公司 | Experimental station for detecting thyristor valve assembly |
| CN106324464A (en) * | 2015-07-08 | 2017-01-11 | 南京南瑞继保电气有限公司 | Thyristor valve synthetic test circuit and thyristor valve synthetic test method |
| EP2667210A3 (en) * | 2012-05-22 | 2017-08-02 | LSIS Co., Ltd. | Apparatus for testing thyristor valve |
| CN108631375A (en) * | 2017-03-20 | 2018-10-09 | 中兴通讯股份有限公司 | The control method and circuit of switch |
| CN114002564A (en) * | 2021-10-29 | 2022-02-01 | 西安交通大学 | Thyristor electric-heat combined aging experimental system for simulating long-term operation condition of converter valve |
-
2007
- 2007-11-08 CN CNU2007201900614U patent/CN201130240Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710159B (en) * | 2009-12-04 | 2011-12-28 | 中国电力科学研究院 | Novel direct-current converter valve test unit |
| CN102707163A (en) * | 2012-01-20 | 2012-10-03 | 荣信电力电子股份有限公司 | Experimental station for detecting silicon controlled valve bank |
| WO2013107104A1 (en) * | 2012-01-20 | 2013-07-25 | 荣信电力电子股份有限公司 | Experimental station for detecting thyristor valve assembly |
| WO2013107105A1 (en) * | 2012-01-20 | 2013-07-25 | 荣信电力电子股份有限公司 | Experimental station for detecting thyristor valve assembly |
| CN102707163B (en) * | 2012-01-20 | 2014-07-23 | 荣信电力电子股份有限公司 | Experimental station for detecting silicon controlled valve bank |
| EP2667210A3 (en) * | 2012-05-22 | 2017-08-02 | LSIS Co., Ltd. | Apparatus for testing thyristor valve |
| CN102749540A (en) * | 2012-07-03 | 2012-10-24 | 中电普瑞科技有限公司 | Testing device and method for hierarchical controllable shunt reactor valve control system |
| CN102749540B (en) * | 2012-07-03 | 2015-07-08 | 国家电网公司 | Testing device and method for hierarchical controllable shunt reactor valve control system |
| CN106324464A (en) * | 2015-07-08 | 2017-01-11 | 南京南瑞继保电气有限公司 | Thyristor valve synthetic test circuit and thyristor valve synthetic test method |
| CN108631375A (en) * | 2017-03-20 | 2018-10-09 | 中兴通讯股份有限公司 | The control method and circuit of switch |
| CN114002564A (en) * | 2021-10-29 | 2022-02-01 | 西安交通大学 | Thyristor electric-heat combined aging experimental system for simulating long-term operation condition of converter valve |
| CN114002564B (en) * | 2021-10-29 | 2023-04-07 | 西安交通大学 | Thyristor electric-heat combined aging experimental system for simulating long-term operation condition of converter valve |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081008 |