CN105467308A - Flexible DC power transmission engineering voltage source converter valve short circuit current test method - Google Patents
Flexible DC power transmission engineering voltage source converter valve short circuit current test method Download PDFInfo
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- 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
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
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Abstract
The invention discloses a flexible DC power transmission engineering voltage source converter valve short circuit current test method. The method comprises a test loop, the test loop comprises an energy supplement valve V3, a test power source S, a test capacitor C, a sample valve V1, a sample valve V2, a main reactor L1, current limit reactors L2/L3, a current limit R, a circuit breaker CB03, a DC short circuit branch and an AC short circuit branch. The method comprises steps that, the sample valves are made to stay in a stable continuous operation state, a voltage phase of the sample valves is made through phase lock control to surpass an output voltage phase of a generator system by a certain angle, the DC short circuit branch and the AC short circuit branch are switched on at the required time, and a short circuit current containing a DC component and an AC component is made to pass through the sample at the required time. Through the method, an equivalent actual short circuit fault work condition is realized, testing on voltage source converter valve short circuit current endurance capability is realized, the DC component and the AC component of the short circuit current can be flexibly adjusted, the test capacity is large, the test method is simple and is easy to control, and no impact is exerted on the electrical network during tests.
Description
Technical field:
The present invention relates to flexible high pressure direct current transportation, electric and electronic technical field, be specifically related to a kind of flexible DC power transmission engineering voltage source converter valve short-circuit current test method.
Background technology:
Technology of HVDC based Voltage Source Converter has been in develop rapidly period, outstanding due to Technology of HVDC based Voltage Source Converter advantage, start extensively to build flexible DC power transmission engineering both at home and abroad, modularization multi-level converter (MMC) is easy to realize larger number of levels, comparatively easily realize back-to-back connection, extremely be suitable for the application of flexible DC power transmission, voltage source converter valve is as the nucleus equipment of flexible DC power transmission, and its performance will directly affect the safe and reliable operation of flexible direct current power transmission system.
Electrical test is the important means of examination voltage source converter valve electric property, and short-circuit current test, as an important tests project of electrical test, has mainly examined the overcurrent capability of fly-wheel diode in voltage source converter valve power model.Propose that a kind of capacity is large, the equivalent short-circuit test method of parameter adjustable, simple, easy control is flexibly the technical matters needing research at present.
Summary of the invention:
The object of the present invention is to provide a kind of flexible DC power transmission engineering voltage source converter valve short-circuit current test method, in order to meet the requirement of short-circuit current test.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of flexible DC power transmission engineering voltage source converter valve short-circuit current test method, the test loop that described test method adopts comprises complementary energy valve V3, experiment power supply S, test electric capacity C, test product valve V1, test product valve V2, principal reactance device L1, current limiting reactor L2/L3, current-limiting resistance R, isolating switch CB03, direct-current short circuit branch road and ac short circuit branch road; Wherein, the high-pressure side of experiment power supply S is connected successively after current limiting reactor L2, current-limiting resistance R, isolating switch CB03 and is connected with test electric capacity C high-pressure side, and test electric capacity C high-pressure side is connected with the high-pressure side of complementary energy valve V3, be connected with the high-pressure side of test product valve V1 after the low pressure end series connection current limiting reactor L3 of complementary energy valve V3, be connected with the high-pressure side of test product valve V2 after low pressure end series connection current limiting reactor L3, the principal reactance device L1 of complementary energy valve V3; Be connected with the high-pressure side of test product valve V2 after high-pressure side series connection disconnector K01 with K02 of test product valve V1; The middle interface of disconnector K01 and K02 is as common point, be connected with the high-pressure side of direct-current short circuit branch road with ac short circuit branch road, be connected with one time, test loop ground terminal after the low pressure end of the low pressure end of test product valve V1, the low pressure end of test product valve V2, direct-current short circuit branch road and ac short circuit branch road, the low pressure end of test electric capacity C and the low pressure end of experiment power supply S are connected; Ac short circuit branch road adopts short-circuit generator system, REgulatable reactor L5, isolating switch CB01, thyristor valve V5 and isolating switch CB02 to be followed in series to form, short-circuit current AC compounent is regulated, the fault condition under simulation test product valve Practical Project service condition by changing generator system, REgulatable reactor L5 parameter and thyristor valve V5 Trigger Angle; Direct-current short circuit branch road comprises an a thyristor valve V4 and REgulatable reactor L4 of series connection, regulates short-circuit current DC component by the parameter changing REgulatable reactor L4, the fault condition under simulation test product valve Practical Project service condition;
Described test method comprises the steps:
1) to select in test product valve V1 and test product valve V2 one as test product valve, then another is for accompanying examination valve;
2) startup optimization test loop, makes test product valve run continuously under Steady-state Parameters; Close circuit breaker CB01 and CB02, starts short-circuit generator system, makes test product valve voltage-phase advanced short-circuit generator system output voltage phase place certain angle by phase-locked control;
3) trigger direct-current short circuit event, produce direct-current short circuit current component;
4) when direct-current short circuit electric current reaches IGBT overcurrent protection off value in test product valve power model, locking test product valve, and triggering thyristor valve V5, short-circuit generator system forms ac short circuit loop by test product valve fly-wheel diode, produces alternating short-circuit current component; Within the short-circuit current duration required, control the Trigger Angle of thyristor valve V5, the alternating short-circuit current required by generation; Alternating short-circuit current component superposition step 3) described in direct-current short circuit current component jointly put on test product valve, the short-circuit current under equivalent physical fault operating mode;
5) after the time that short-circuit current continues requirement, locking thyristor valve V5 and thyristor valve V4, short-circuit current Natural Attenuation to zero, off-test.
The present invention further improves and is, short-circuit generator system is made up of short-circuit generator G and transformer T.
The present invention further improves and is, step 1) in, switch test product valve by two disconnector K01 and K02 and accompany examination valve.
The present invention further improves and is, step 2) in, make test product valve voltage-phase advanced short-circuit generator system output voltage phase angle be 0-90 ° by phase-locked control.
The present invention further improves and is, step 3) in, trigger direct-current short circuit event by following two kinds of methods:
Method one, under steady-state voltage, examination valve is accompanied in excision, triggers thyristor valve V4 simultaneously, and now REgulatable reactor L4 series winding thyristor valve V4, principal reactance device L1 series winding accompany examination valve jointly to form direct-current short circuit branch road;
Method two, triggers thyristor valve V4 under steady-state voltage, and now REgulatable reactor L4 series winding thyristor valve V4 forms direct-current short circuit branch road;
In two kinds of methods, test product valve forms the direct-current short circuit between both positive and negative polarity by short dot, and close in test product valve IGBT overcurrent protection and have no progeny, direct-current short circuit electric current is by principal reactance device L1, REgulatable reactor L4 and the afterflow of test product valve fly-wheel diode.
The present invention further improves and is, uses short-circuit generator system to coordinate thyristor valve V5 as short circuit power supply.
The present invention further improves and is, thyristor valve V5 adopts unidirectional control thyristor valve or double-direction control thyristor valve two kinds of structures.
Relative to prior art, the present invention has following beneficial effect:
1) flexible DC power transmission engineering voltage source converter valve short-circuit current test method of the present invention can equivalent actual short operating mode, meet the requirement that standard is tested voltage source converter valve short-circuit current, realize the examination of voltage source converter valve short-circuit current tolerance.
2) flexible DC power transmission engineering voltage source converter valve short-circuit current test method of the present invention uses short-circuit generator system as ac short circuit power supply, and capacity of short circuit is large, can not produce impact electrical network.
3) flexible DC power transmission engineering voltage source converter valve short-circuit current test method of the present invention ingeniously utilizes test product valve working voltage by direct-current short circuit branch road, accompanies examination valve to produce direct-current short circuit electric current, without the need to additional tests power supply.By controlling thyristor valve V4 and thyristor valve V5 Trigger Angle, direct-current short circuit current component and alternating short-circuit current component all can flexible.
4) flexible DC power transmission engineering voltage source converter valve short-circuit current test method of the present invention simply, is easily controlled, and can select test product valve neatly, improve test efficiency by fling-cut switch.
Accompanying drawing illustrates:
Fig. 1 is flexible DC power transmission engineering voltage source converter valve short-circuit current test loop schematic diagram.
Fig. 2 is flexible DC power transmission engineering voltage source converter valve short-circuit current test method process flow diagram.
Fig. 3 is flexible DC power transmission engineering voltage source converter valve short-circuit current test short-circuit current waveform figure.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described in further detail:
As shown in Figure 1, for flexible DC power transmission engineering voltage source converter valve short-circuit current test loop schematic diagram, this test loop comprises complementary energy valve V3, experiment power supply S, test electric capacity C, test product valve V1, test product valve V2, principal reactance device L1, current limiting reactor L2/L3, current-limiting resistance R, isolating switch CB03, direct-current short circuit branch road and ac short circuit branch road; Wherein, the high-pressure side of experiment power supply S is connected successively after current limiting reactor L2, current-limiting resistance R, isolating switch CB03 and is connected with test electric capacity C high-pressure side, and test electric capacity C high-pressure side is connected with the high-pressure side of complementary energy valve V3, be connected with the high-pressure side of test product valve V1 after the low pressure end series connection current limiting reactor L3 of complementary energy valve V3, be connected with the high-pressure side of test product valve V2 after low pressure end series connection current limiting reactor L3, the principal reactance device L1 of complementary energy valve V3; Be connected with the high-pressure side of test product valve V2 after high-pressure side series connection disconnector K01 with K02 of test product valve V1; The middle interface of disconnector K01 and K02 is as common point, be connected with the high-pressure side of direct-current short circuit branch road with ac short circuit branch road, be connected with one time, test loop ground terminal after the low pressure end of the low pressure end of test product valve V1, the low pressure end of test product valve V2, direct-current short circuit branch road and ac short circuit branch road, the low pressure end of test electric capacity C and the low pressure end of experiment power supply S are connected; Ac short circuit branch road adopts short-circuit generator system (being made up of short-circuit generator G and transformer T), REgulatable reactor L5, isolating switch CB01, thyristor valve V5 and isolating switch CB02 are followed in series to form, short-circuit current AC compounent is regulated, the fault condition under simulation test product valve Practical Project service condition by changing generator system, REgulatable reactor L5 parameter and thyristor valve V5 Trigger Angle; Direct-current short circuit branch road comprises an a thyristor valve V4 and REgulatable reactor L4 of series connection, regulates short-circuit current DC component by the parameter changing REgulatable reactor L4, the fault condition under simulation test product valve Practical Project service condition.
As shown in Figure 2, be flexible DC power transmission engineering voltage source converter valve short-circuit current test method process flow diagram, this test method comprises the steps:
1) select test product valve V1 or test product valve V2 by two disconnector K01 and K02, one of them is as test product valve, then another is for accompanying examination valve;
2) startup optimization test loop, makes test product valve run continuously under Steady-state Parameters; Close circuit breaker CB01 and CB02, starts short-circuit generator, make test product valve voltage-phase advanced short-circuit generator system output voltage phase angle adjustable, and angle adjustable is 0-90 ° by phase-locked control;
3) direct-current short circuit event is triggered by following two kinds of methods:
Method one: examination valve is accompanied in excision under steady-state voltage, triggers thyristor valve V4 simultaneously, now REgulatable reactor L4 series winding thyristor valve V4, principal reactance device L1 series winding accompany examination valve jointly to form direct-current short circuit branch road;
Method two: trigger thyristor valve V4 under steady-state voltage, now REgulatable reactor L4 series winding thyristor valve V4 forms direct-current short circuit branch road;
In two kinds of methods, test product valve forms the direct-current short circuit between both positive and negative polarity by short dot, and close in test product valve IGBT overcurrent protection and have no progeny, direct-current short circuit electric current is by principal reactance device L1, REgulatable reactor L4 and the afterflow of test product valve fly-wheel diode;
4) when direct-current short circuit electric current reaches IGBT overcurrent protection off value in test product valve power model, locking test product valve, and trigger thyristor valve V5, short-circuit generator system forms ac short circuit loop by test product valve fly-wheel diode, produces alternating short-circuit current component (as shown in Figure 3); Within the short-circuit current duration required, control thyristor valve V5 Trigger Angle and alternating short-circuit current component is regulated; Alternating short-circuit current component superposition step 3) described in direct-current short circuit current component jointly put on test product valve, the short-circuit current under equivalent physical fault operating mode;
5) after the time that short-circuit current continues requirement, locking thyristor valve V5 and thyristor valve V4, short-circuit current Natural Attenuation to zero, off-test.
In test, by sequential control, reactor parameter coordination thyristor valve V4 and the setting of thyristor valve V5 Trigger Angle, the size of direct-current short circuit current component and alternating short-circuit current component and duration all can independent regulation flexibly, and capacity of experiment is determined by generator short circuit capacity, can not produce electrical network and impact.
Special instruction above-described embodiment is for better the present invention will be described but not be limited.The amendment that those skilled in the art's reference the present invention carries out or change are all within the claims of the present patent application.
Claims (7)
1. a flexible DC power transmission engineering voltage source converter valve short-circuit current test method, it is characterized in that, the test loop that described test method adopts comprises complementary energy valve V3, experiment power supply S, test electric capacity C, test product valve V1, test product valve V2, principal reactance device L1, current limiting reactor L2/L3, current-limiting resistance R, isolating switch CB03, direct-current short circuit branch road and ac short circuit branch road; Wherein, the high-pressure side of experiment power supply S is connected successively after current limiting reactor L2, current-limiting resistance R, isolating switch CB03 and is connected with test electric capacity C high-pressure side, and test electric capacity C high-pressure side is connected with the high-pressure side of complementary energy valve V3, be connected with the high-pressure side of test product valve V1 after the low pressure end series connection current limiting reactor L3 of complementary energy valve V3, be connected with the high-pressure side of test product valve V2 after low pressure end series connection current limiting reactor L3, the principal reactance device L1 of complementary energy valve V3; Be connected with the high-pressure side of test product valve V2 after high-pressure side series connection disconnector K01 with K02 of test product valve V1; The middle interface of disconnector K01 and K02 is as common point, be connected with the high-pressure side of direct-current short circuit branch road with ac short circuit branch road, be connected with one time, test loop ground terminal after the low pressure end of the low pressure end of test product valve V1, the low pressure end of test product valve V2, direct-current short circuit branch road and ac short circuit branch road, the low pressure end of test electric capacity C and the low pressure end of experiment power supply S are connected; Ac short circuit branch road adopts short-circuit generator system, REgulatable reactor L5, isolating switch CB01, thyristor valve V5 and isolating switch CB02 to be followed in series to form, short-circuit current AC compounent is regulated, the fault condition under simulation test product valve Practical Project service condition by changing generator system, REgulatable reactor L5 parameter and thyristor valve V5 Trigger Angle; Direct-current short circuit branch road comprises an a thyristor valve V4 and REgulatable reactor L4 of series connection, regulates short-circuit current DC component by the parameter changing REgulatable reactor L4, the fault condition under simulation test product valve Practical Project service condition;
Described test method comprises the steps:
1) to select in test product valve V1 and test product valve V2 one as test product valve, then another is for accompanying examination valve;
2) startup optimization test loop, makes test product valve run continuously under Steady-state Parameters; Close circuit breaker CB01 and CB02, starts short-circuit generator system, makes test product valve voltage-phase advanced short-circuit generator system output voltage phase place certain angle by phase-locked control;
3) trigger direct-current short circuit event, produce direct-current short circuit current component;
4) when direct-current short circuit electric current reaches IGBT overcurrent protection off value in test product valve power model, locking test product valve, and triggering thyristor valve V5, short-circuit generator system forms ac short circuit loop by test product valve fly-wheel diode, produces alternating short-circuit current component; Within the short-circuit current duration required, control the Trigger Angle of thyristor valve V5, the alternating short-circuit current required by generation; Alternating short-circuit current component superposition step 3) described in direct-current short circuit current component jointly put on test product valve, the short-circuit current under equivalent physical fault operating mode;
5) after the time that short-circuit current continues requirement, locking thyristor valve V5 and thyristor valve V4, short-circuit current Natural Attenuation to zero, off-test.
2. flexible DC power transmission engineering voltage source converter valve short-circuit current test method according to claim 1, it is characterized in that, short-circuit generator system is made up of short-circuit generator G and transformer T.
3. flexible DC power transmission engineering voltage source converter valve short-circuit current test method according to claim 1, is characterized in that, step 1) in, switch test product valve by two disconnector K01 and K02 and accompany examination valve.
4. flexible DC power transmission engineering voltage source converter valve short-circuit current test method according to claim 1, it is characterized in that, step 2) in, make test product valve voltage-phase advanced short-circuit generator system output voltage phase angle be 0-90 ° by phase-locked control.
5. flexible DC power transmission engineering voltage source converter valve short-circuit current test method according to claim 1, is characterized in that, step 3) in, trigger direct-current short circuit event by following two kinds of methods:
Method one, under steady-state voltage, examination valve is accompanied in excision, triggers thyristor valve V4 simultaneously, and now REgulatable reactor L4 series winding thyristor valve V4, principal reactance device L1 series winding accompany examination valve jointly to form direct-current short circuit branch road;
Method two, triggers thyristor valve V4 under steady-state voltage, and now REgulatable reactor L4 series winding thyristor valve V4 forms direct-current short circuit branch road;
In two kinds of methods, test product valve forms the direct-current short circuit between both positive and negative polarity by short dot, and close in test product valve IGBT overcurrent protection and have no progeny, direct-current short circuit electric current is by principal reactance device L1, REgulatable reactor L4 and the afterflow of test product valve fly-wheel diode.
6. flexible DC power transmission engineering voltage source converter valve short-circuit current test method according to claim 1, is characterized in that, uses short-circuit generator system to coordinate thyristor valve V5 as short circuit power supply.
7. flexible DC power transmission engineering voltage source converter valve short-circuit current test method according to claim 1, it is characterized in that, thyristor valve V5 adopts unidirectional control thyristor valve or double-direction control thyristor valve two kinds of structures.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772025A (en) * | 2016-11-30 | 2017-05-31 | 国家电网公司 | A kind of breaking capacity of breaker appraisal procedure based on total current equivalence principle |
| CN106990309A (en) * | 2017-04-28 | 2017-07-28 | 荣信汇科电气技术有限责任公司 | A kind of converter valve Tests at Steady State device and method of use AC-testing supply |
| CN108490369A (en) * | 2018-03-07 | 2018-09-04 | 西南交通大学 | HVDC transmission system transverter fast fault locating method |
| CN110261762A (en) * | 2019-05-05 | 2019-09-20 | 北京四方继保自动化股份有限公司 | It is a kind of to liquidate suitable for valve section power and the circuit of short-circuit test |
| CN110311399A (en) * | 2019-06-14 | 2019-10-08 | 中国电力科学研究院有限公司 | A kind of determination method and device of flexible direct current contribution current in the short |
| CN114167167A (en) * | 2021-11-15 | 2022-03-11 | 许继集团有限公司 | Modular multilevel converter short-circuit current test device and test method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187690B (en) * | 2007-11-28 | 2010-06-02 | 中国电力科学研究院 | DC converter valve restoration period transient forward voltage test method |
| US20110273200A1 (en) * | 2009-12-04 | 2011-11-10 | China Electric Power Research Institute | Fault Current Test Equipment of Direct Current Thyristor Valve |
| CN202230181U (en) * | 2011-08-25 | 2012-05-23 | 中国电力科学研究院 | Power ring test apparatus for flexible DC power transmission MMC valve stable state operation test |
| CN103197241A (en) * | 2013-03-20 | 2013-07-10 | 许继集团有限公司 | Testing device and testing method of flexible direct-current transmission modular multilevel converter (MMC) converter valve operating |
| CN203720321U (en) * | 2014-01-21 | 2014-07-16 | 清华大学 | Power hedging test device for modularized multi-level converter valves |
-
2015
- 2015-11-18 CN CN201510796295.2A patent/CN105467308B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187690B (en) * | 2007-11-28 | 2010-06-02 | 中国电力科学研究院 | DC converter valve restoration period transient forward voltage test method |
| US20110273200A1 (en) * | 2009-12-04 | 2011-11-10 | China Electric Power Research Institute | Fault Current Test Equipment of Direct Current Thyristor Valve |
| CN202230181U (en) * | 2011-08-25 | 2012-05-23 | 中国电力科学研究院 | Power ring test apparatus for flexible DC power transmission MMC valve stable state operation test |
| CN103197241A (en) * | 2013-03-20 | 2013-07-10 | 许继集团有限公司 | Testing device and testing method of flexible direct-current transmission modular multilevel converter (MMC) converter valve operating |
| CN203720321U (en) * | 2014-01-21 | 2014-07-16 | 清华大学 | Power hedging test device for modularized multi-level converter valves |
Non-Patent Citations (1)
| Title |
|---|
| 罗湘 等: "合成试验方法在 VSC-HVDC 换流阀短路电流试验中的应用", 《电网技术》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772025A (en) * | 2016-11-30 | 2017-05-31 | 国家电网公司 | A kind of breaking capacity of breaker appraisal procedure based on total current equivalence principle |
| CN106990309A (en) * | 2017-04-28 | 2017-07-28 | 荣信汇科电气技术有限责任公司 | A kind of converter valve Tests at Steady State device and method of use AC-testing supply |
| CN106990309B (en) * | 2017-04-28 | 2023-07-07 | 荣信汇科电气股份有限公司 | Converter valve steady-state operation test device and method adopting alternating-current test power supply |
| CN108490369A (en) * | 2018-03-07 | 2018-09-04 | 西南交通大学 | HVDC transmission system transverter fast fault locating method |
| CN110261762A (en) * | 2019-05-05 | 2019-09-20 | 北京四方继保自动化股份有限公司 | It is a kind of to liquidate suitable for valve section power and the circuit of short-circuit test |
| CN110261762B (en) * | 2019-05-05 | 2021-06-08 | 北京四方继保自动化股份有限公司 | Circuit suitable for valve section power offset and short circuit test |
| CN110311399A (en) * | 2019-06-14 | 2019-10-08 | 中国电力科学研究院有限公司 | A kind of determination method and device of flexible direct current contribution current in the short |
| CN110311399B (en) * | 2019-06-14 | 2022-09-20 | 中国电力科学研究院有限公司 | Method and device for determining short-circuit point current contributed by flexible direct current |
| CN114167167A (en) * | 2021-11-15 | 2022-03-11 | 许继集团有限公司 | Modular multilevel converter short-circuit current test device and test method |
| CN114167167B (en) * | 2021-11-15 | 2024-02-09 | 许继集团有限公司 | Short-circuit current test device and test method for modularized multi-level converter |
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