CN108132397A - A kind of test system of current transformer - Google Patents
A kind of test system of current transformer Download PDFInfo
- Publication number
- CN108132397A CN108132397A CN201711308497.3A CN201711308497A CN108132397A CN 108132397 A CN108132397 A CN 108132397A CN 201711308497 A CN201711308497 A CN 201711308497A CN 108132397 A CN108132397 A CN 108132397A
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- 238000012360 testing method Methods 0.000 title claims abstract description 58
- 230000010349 pulsation Effects 0.000 claims description 15
- 238000005265 energy consumption Methods 0.000 claims description 4
- 210000001367 artery Anatomy 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 230000003137 locomotive effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
Classifications
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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
Abstract
The present invention provides a kind of test system of current transformer.The voltage range that test system of the present invention can test DC transformer is 700V~5000V DC, test system maximum power 800kVA.The voltage range that AC convertor can be tested is voltage range：280V~3600V AC, test system maximum power 2400kVA (mechanical back to back test operating mode), frequency range 45Hz~66Hz are continuous electrodeless adjustable.Its voltage and power can meet the demand of the full-load test of the various traction convertor filled and AuCT of existing electric locomotive and diesel locomotive.When being tested at full capacity, it is ensured that pilot system influences public electric wire net system tri-phase unbalance factor<5%, it is ensured that entire pilot system is to the harmonic effects (THD) of public electric wire net<2%.
Description
Technical field
The present invention relates to converter field of measuring technique more particularly to a kind of test systems of converter.
Background technology
With current transformer application increasingly extensive in field of track traffic, one in being designed as rail vehicle is main
Component part, people propose increasingly higher demands to the performance of current transformer.Therefore it needs to carry out various tests to current transformer,
Have verified that whether its function and performance meet the whole requirement of auxiliary rail vehicle.
Existing current transformer test system influences greatly public electric wire net power quality, and test voltage narrow range can not match
The test of a variety of different current transformers.
Invention content
The present invention provides a kind of test system of current transformer, to overcome above-mentioned technical problem.
The test system of current transformer of the present invention, including：
Rectification unit, loading unit and power supply unit；
The rectification unit includes：10kv incoming line switch cabinets, rectifier transformer and the first rectification unit；
The 10kv incoming line switch cabinets input terminal connects 10kV busbares, and output terminal connects the rectifier transformer, described whole
The output terminal of convertor transformer is connect with first rectification unit；The first rectification unit output terminal is single with the loading respectively
Member, said supply unit connection；
The loading unit includes：First inverter, the second inverter, the first loading motor and the second loading motor；Institute
State the first inverter, the output terminal of the second inverter is connect respectively with first loading motor and second loading motor；
Said supply unit includes：Third inverter, DC power supply unit and Alternating Current Power Supply unit；
The DC power supply unit includes：First high-tension switch cabinet, single-phase/single-phase voltage regulator and 3.6KV service entrance switch
Cabinet；
Described first high-tension switch cabinet one end is connect with the third inverter output end, the other end with it is described single-phase/mono-
Phase voltage regulator connects, and the other end of the single-phase/single-phase voltage regulator connects the 3.6KV incoming line switch cabinets, the 3.6KV inlet wires
The other end connection direct current unitunder test of switchgear；
The Alternating Current Power Supply unit includes：Second high-tension switch cabinet, three-phase/three-phase regulator, 3.7KV incoming line switch cabinets,
24 pulsation phase-shifting transformers, 24 impulse commutation units and the second rectification unit；
The second high-tension switch cabinet being connect with the third inverter output end, three connect with second high-voltage switch gear
Phase/three-phase regulator, the other end connection 3.7KV incoming line switch cabinets of the three-phase/three-phase regulator, the 3.7KV inlet wires are opened
The cabinet other end connection 24 pulsation phase-shifting transformer is closed, the other end of the 24 pulsation phase-shifting transformer and 24 pulse are whole
Unit connection is flowed, the 24 impulse commutation unit is connect with second rectification unit, the other end of second rectification unit
Connection exchange unitunder test, the 24 impulse commutation unit are used for the polyphase ac of described 24 pulsation phase-shifting transformer generations
Whole electricity is direct current.
Further, it further includes：
Test load unit, the test load unit are connect with unitunder test, including：Variable-frequency motor, adjustable simulation
Load, accumulator group and energy consumption resistance.
Further, the 24 pulsation rectification unit, further includes：
Dc bus discharge resistance, the dc bus discharge resistance are used to discharge when DC bus-bar voltage is higher than threshold value
Energy restores the DC bus-bar voltage to normal voltage value.
The voltage range that test system of the present invention can test DC transformer is 700V~5000V DC, and test system is maximum
Power 800kVA.The voltage range that AC convertor can be tested is voltage range：280V~3600V AC test system maximum work
Rate 2400kVA (mechanical back to back test operating mode), frequency range 45Hz~66Hz are continuous electrodeless adjustable.Its voltage and power can meet existing
There is the demand of the full-load test of the various traction convertor filled and AuCT of electric locomotive and diesel locomotive.Full
When load is tested, it is ensured that pilot system influences public electric wire net system tri-phase unbalance factor<5%, it is ensured that entire experiment system
The harmonic effects (THD) united to public electric wire net<2%.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the test system structure schematic diagram of converter of the present invention.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without creative efforts shall fall within the protection scope of the present invention.
Fig. 1 is the test system structure schematic diagram of converter of the present invention, as shown in Figure 1, the system of the present embodiment, can wrap
It includes：
Rectification unit 1, loading unit 2 and power supply unit 3；
The rectification unit includes：10kv incoming line switch cabinets 101,102 and first rectification unit 103 of rectifier transformer；
101 input terminal of the 10kv incoming line switch cabinets connection 10kV busbares 104, output terminal connects the rectifier transformer
102nd, the output terminal of the rectifier transformer 102 is connect with first rectification unit 103；First rectification unit 103 is defeated
Outlet is connect respectively with the loading unit, said supply unit；
The loading unit 2 includes：First inverter 201, the second inverter 202, the first loading motor 203 and second add
Carry motor 204；First inverter, the second inverter output terminal respectively with first loading motor and described second plus
Carry motor connection；
Said supply unit 3 includes：Third inverter 301, DC power supply unit 302 and Alternating Current Power Supply unit 303；
The DC power supply unit 302 includes：First high-tension switch cabinet 310, single-phase/single-phase voltage regulator 311 and 3.6KV
Incoming line switch cabinet 312；
Described first high-tension switch cabinet, 310 one end is connect with 301 output terminal of third inverter, the other end and the list
Phase/single-phase voltage regulator 311 connects, and the other end of the single-phase/single-phase voltage regulator 311 connects the 3.6KV incoming line switch cabinets
312, the other end connection direct current unitunder test of the 3.6KV incoming line switch cabinets 312；
The Alternating Current Power Supply unit includes：Second high-tension switch cabinet 320, three-phase/three-phase regulator 321,3.7KV inlet wires are opened
Close the pulsation of cabinet 322,24 phase-shifting transformer 323,24 impulse commutation units 324 and the second rectification unit 325；
The second high-tension switch cabinet being connect with the third inverter output end, three connect with second high-voltage switch gear
Phase/three-phase regulator, the other end connection 3.7KV incoming line switch cabinets of the three-phase/three-phase regulator, the 3.7KV inlet wires are opened
The cabinet other end connection 24 pulsation phase-shifting transformer is closed, the other end of the 24 pulsation phase-shifting transformer and 24 pulse are whole
Unit connection is flowed, the 24 impulse commutation unit is connect with second rectification unit, the other end of second rectification unit
Connection exchange unitunder test, the 24 impulse commutation unit are used for the polyphase ac of described 24 pulsation phase-shifting transformer generations
Whole electricity is direct current.
Specifically, this test system loads unit is the first inverter, the second inverter is 900kW inverters.First
Loading motor and the second loading motor are 800kW variable-frequency motors.When carrying out current transformer test, it is closed 10kv incoming line switch cabinets first
101, start the first rectification unit of test system 103, then start the third inverter 301 in test system power supply unit.
When the single-phase experiments of progress AC/AC, the first high-tension switch cabinet 310 closes a floodgate, while the second high-tension switch cabinet 320 divides
Lock, first high-tension switch cabinet and the second high-tension switch cabinet are interlocking, and power supply is provided, while according to tool for tested AC convertor
Body test request starts test system loads unit the first inverter 201,202 first loading motor 203 of the second inverter and the
Two loading motors 204 are loaded for test process.Entire test process loading unit passes through the first rectification unit of the system of testing
103 dc bus carries out electric energy feedback, reduces the interference to higher level's power grid.And first rectification unit 103 and third inverter
301 have the ability of single-phase output 1600W, will not lead to higher level's power grid three-phase imbalance.
When carrying out AC/DC experiments, the second high-tension switch cabinet 320 closes a floodgate, and 310 separating brake of the first high-tension switch cabinet, this first
High-tension switch cabinet and the second high-tension switch cabinet are interlocking, are supplied by 24 pulsation phase-shifting transformers 323 for the second rectification unit 325
Electricity, rectification unit provides power supply for tested DC/AC current transformers, after system under test (SUT) starts, while according to specific test request
Start test system loads unit the first inverter 201, the second inverter 202 driving the first loading motor 203 and the second loading
Motor 204 is loaded for test process or is loaded using adjustable fictitious load and accumulator, and entire test process loading is single
Member carries out electric energy feedback (or energy consumption resistance consumption) by testing the dc bus of system rectification unit 301, reduces to higher level
The interference of power grid.
Test process is monitored by testboard monitoring software, and software testing system monitors all high-tension switch cabinets, hands over directly
The states such as temperature, on/off switch, electric current, the voltages of equipment such as frequency converter, transformer, loading motor are flowed, real-time curve can be generated,
Test data is stored in database for follow-up report generation and printing.TBS softwares are according to the real time data of monitoring to testing system
It is protected, including but not limited to frequency converter overtemperature prote, transformer overtemperature prote, the chain interlock protection of high-voltage switch gear；Simultaneously
With tested frequency converter communicate and read its virtual condition, interlock protection is carried out with loading system, when traction unit breaks down
Later loading equipemtn is out of service, prevents equipment from the perils such as driving occur.
Further, it further includes：
Test load unit, the test load unit are connect with unitunder test, including：Variable-frequency motor, adjustable simulation
Load, accumulator group and energy consumption resistance.
Further, the 24 pulsation rectification unit, further includes：
Dc bus discharge resistance, the dc bus discharge resistance are used to discharge when DC bus-bar voltage is higher than threshold value
Energy restores the DC bus-bar voltage to normal voltage value.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (3)
1. a kind of test system of current transformer, which is characterized in that including：
Rectification unit, loading unit and power supply unit；
The rectification unit includes：10kv incoming line switch cabinets, rectifier transformer and the first rectification unit；
Connect the 10kv incoming line switch cabinets of 10kV busbares, the output terminal of the 10kv incoming line switch cabinets connects the rectifier transformer
Device, the rectifier transformer output terminal connect with first rectification unit；The first rectification unit output terminal respectively with
The loading unit, said supply unit connection；
The loading unit includes：First inverter, the second inverter, the first loading motor and the second loading motor；Described
One inverter, the second inverter output terminal connect respectively with first loading motor and second loading motor；
Said supply unit includes：Third inverter, DC power supply unit and Alternating Current Power Supply unit；
The DC power supply unit includes：First high-tension switch cabinet, single-phase/single-phase voltage regulator and 3.6KV incoming line switch cabinets；
Described first high-tension switch cabinet one end is connect with the third inverter output end, the other end and single-phase/single-phase tune
Depressor connects, and the other end of the single-phase/single-phase voltage regulator connects the 3.6KV incoming line switch cabinets, the 3.6KV service entrance switch
The other end connection direct current unitunder test of cabinet；
The Alternating Current Power Supply unit includes：Second high-tension switch cabinet, three-phase/three-phase regulator, 3.7KV incoming line switch cabinets, 24 arteries and veins
Dynamic phase-shifting transformer, 24 impulse commutation units and the second rectification unit；
The second high-tension switch cabinet being connect with the third inverter output end, the three-phase being connect with second high-voltage switch gear/
Three-phase regulator, the other end connection 3.7KV incoming line switch cabinets of the three-phase/three-phase regulator, the 3.7KV incoming line switch cabinets
The other end connection 24 pulsation phase-shifting transformer, the other end and the 24 impulse commutation list of the 24 pulsation phase-shifting transformer
Member connection, the 24 impulse commutation unit are connect with second rectification unit, the other end connection of second rectification unit
Unitunder test is exchanged, the 24 impulse commutation unit is used for many phase alternating current of described 24 pulsation phase-shifting transformer generations is whole
For direct current.
2. system according to claim 1, which is characterized in that further include：
Test load unit, the test load unit are connect with unitunder test, including：Variable-frequency motor, adjustable fictitious load,
Accumulator group and energy consumption resistance.
3. system according to claim 1 or 2, which is characterized in that the 24 pulsation rectification unit further includes：
Dc bus discharge resistance, the dc bus discharge resistance are used to discharge energy when DC bus-bar voltage is higher than threshold value
Amount, restores the DC bus-bar voltage to normal voltage value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308497.3A CN108132397B (en) | 2017-12-11 | 2017-12-11 | Test system of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308497.3A CN108132397B (en) | 2017-12-11 | 2017-12-11 | Test system of converter |
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| Publication Number | Publication Date |
|---|---|
| CN108132397A true CN108132397A (en) | 2018-06-08 |
| CN108132397B CN108132397B (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711308497.3A Active CN108132397B (en) | 2017-12-11 | 2017-12-11 | Test system of converter |
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| Country | Link |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071162A (en) * | 2007-06-29 | 2007-11-14 | 株洲南车时代电气股份有限公司 | Current converter test circuit |
| CN102435899A (en) * | 2011-10-14 | 2012-05-02 | 株洲南车时代电气股份有限公司 | Locomotive traction converter test apparatus and method thereof |
| CN202794404U (en) * | 2012-09-24 | 2013-03-13 | 株洲南车时代电气股份有限公司 | Factory-leaving routine power checking test platform of medium-pressure high-power converter |
| CN103257316A (en) * | 2013-05-17 | 2013-08-21 | 内蒙古久和能源科技有限公司 | Multifunctional test system of wind turbine generator system |
| CN204536455U (en) * | 2015-04-24 | 2015-08-05 | 永济新时速电机电器有限责任公司 | High power Traction AuCT test system |
| CN204666753U (en) * | 2015-06-15 | 2015-09-23 | 株洲南车时代电气股份有限公司 | A kind of test macro of city track traffic engineering car AuCT |
| WO2016165735A1 (en) * | 2015-04-13 | 2016-10-20 | FeCon GmbH | Method for testing an inverter device or a power converter device |
| CN205787052U (en) * | 2016-06-01 | 2016-12-07 | 北京交通大学 | It is applicable to the track traffic current transformer test platform of multi-standard |
| CN206002663U (en) * | 2016-07-29 | 2017-03-08 | 株洲中达特科电子科技有限公司 | A kind of comprehensive test system being applied to many motors |
| CN106771792A (en) * | 2017-03-29 | 2017-05-31 | 株洲中达特科电子科技有限公司 | A kind of locomotive converter test system |
-
2017
- 2017-12-11 CN CN201711308497.3A patent/CN108132397B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071162A (en) * | 2007-06-29 | 2007-11-14 | 株洲南车时代电气股份有限公司 | Current converter test circuit |
| CN102435899A (en) * | 2011-10-14 | 2012-05-02 | 株洲南车时代电气股份有限公司 | Locomotive traction converter test apparatus and method thereof |
| CN202794404U (en) * | 2012-09-24 | 2013-03-13 | 株洲南车时代电气股份有限公司 | Factory-leaving routine power checking test platform of medium-pressure high-power converter |
| CN103257316A (en) * | 2013-05-17 | 2013-08-21 | 内蒙古久和能源科技有限公司 | Multifunctional test system of wind turbine generator system |
| WO2016165735A1 (en) * | 2015-04-13 | 2016-10-20 | FeCon GmbH | Method for testing an inverter device or a power converter device |
| CN204536455U (en) * | 2015-04-24 | 2015-08-05 | 永济新时速电机电器有限责任公司 | High power Traction AuCT test system |
| CN204666753U (en) * | 2015-06-15 | 2015-09-23 | 株洲南车时代电气股份有限公司 | A kind of test macro of city track traffic engineering car AuCT |
| CN205787052U (en) * | 2016-06-01 | 2016-12-07 | 北京交通大学 | It is applicable to the track traffic current transformer test platform of multi-standard |
| CN206002663U (en) * | 2016-07-29 | 2017-03-08 | 株洲中达特科电子科技有限公司 | A kind of comprehensive test system being applied to many motors |
| CN106771792A (en) * | 2017-03-29 | 2017-05-31 | 株洲中达特科电子科技有限公司 | A kind of locomotive converter test system |
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| Publication number | Publication date |
|---|---|
| CN108132397B (en) | 2020-10-30 |
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