CN104201867B - Three-level IGBT power cabinet based on heat pipe radiator - Google Patents
Three-level IGBT power cabinet based on heat pipe radiator Download PDFInfo
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- CN104201867B CN104201867B CN201410471616.7A CN201410471616A CN104201867B CN 104201867 B CN104201867 B CN 104201867B CN 201410471616 A CN201410471616 A CN 201410471616A CN 104201867 B CN104201867 B CN 104201867B
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Abstract
The invention discloses a three-level IGBT power cabinet based on a heat pipe radiator. The three-level IGBT power cabinet comprises a rectification power module, an inverting power module, a direct-current bus capacitor module, laminated busbars, a rectifying current sensor and an inverting current sensor. Elements of the rectification power module and inverting power module are the same in arrangement manners and are mounted on the left and right sides of the upper portion of the rear side wall of a cabinet body respectively; the direct-current bus capacitor module is fixedly mounted in the middle of the rear side wall of the cabinet body, and the rectification power module and the inverting power module are symmetrical about the direct-current bus capacitor module; the rectification power module, the inverting power module and the direct-current bus capacitor module are connected through the laminated busbars, and the rectification power module and the inverting power module are connected to the rectifying current sensor and the inverting current sensor respectively. The cabinet body is pre-provided with an alternate-current incoming/discharging wire hole position. The cabinet has the advantages that the standardization of a main module is implemented, the structure is more compact, the maintenance is simplified, the efficiency is improved through the heat pipe radiating manner, and the circuit stray inductance is reduced.
Description
Technical field
The invention belongs to semiconductor switch technical field, design a kind of three level IGBT power based on heat-pipe radiator
Cabinet, specifically, is that a kind of degree of modularity is higher, three less level IGBT power cabinets of circuit stray inductance.
Background technology
In middle low power current transformer, adopt two level IGBT inverter structure more.But two level inverse conversion structure voltages etc.
Level is low, and capacity is little, and electrical machine insulation is had high demands, and electromechanical shock is big, and voltage distortion rate is big, and current harmonic content is high.And electromagnetism
Compatible performance is bad, and power device caloric value is big.So three-level current transformer equipment gradually be instead of with its more excellent performance
Two level current transformer equipment.
Compared with two traditional level current transformers, major advantage is three level IGBT converter equipment：Device has 2 times
Forward blocking voltage ability.The increase of level number also makes mains side electric current than the electric current in two level closer to sine, and with
The increase of level number, sine is better, and power factor is higher.And then harmonic wave can be reduced and reduce switching frequency, so that being
System loss reduces.Output voltage grade can also be lifted to reduce system power stress.But three-level current transformer equipment is also deposited
In some shortcomings, if desired for more switching device, between these switching devices, topology layout is more complicated.Control algolithm is multiple
Miscellaneous.If device layout and cabling is unreasonable is easy to cause current potential imbalance problem.So the present invention in structure design more
Plus reasonably played the advantage of three level IGBT converter.
Content of the invention
For the problems referred to above, the present invention proposes a kind of three level IGBT power cabinets based on heat-pipe radiator, by by three
Level IGBT brachium pontis focuses in separate modular, then mixes drive circuit and dc-link capacitance module and laminated bus bar and heat pipe
Radiator, provides the design that component placement is more reasonable, structure is compacter, radiating efficiency is higher in the application.
A kind of three level IGBT power cabinets based on heat-pipe radiator of the present invention,
Described rectified power module is identical with the components' placement mode in inverted power module, after being separately mounted to cabinet
With right side on the left of side wall upper part, dc-link capacitance module is fixedly mounted in the middle of cabinet rear wall, make rectified power module with
Inverted power module is symmetrical with respect to dc-link capacitance module.
Described laminated bus bar includes rectified power module laminated bus bar, inverted power module laminated bus bar and dc bus electricity
Molar group laminated bus bar, is fixedly installed in rectified power module, inverted power module and dc-link capacitance module table respectively
Face.Wherein, on the right side of rectified power module laminated bus bar, projecting terminal is directly stretched with the left of dc-link capacitance module laminated bus bar
Go out terminal to be connected；On the left of inverted power module laminated bus bar, projecting terminal is directly and dc-link capacitance module mould laminated bus bar is right
Side projecting terminal is connected.
Described rectified current sensor with and inverter current sensor be fixedly installed in respectively on the left of cabinet inwall with right side,
And center sensor hole is each passed through alternating current inlet wire busbar group and exchanges outgoing line busbar group.Alternating current inlet wire busbar group with exchange outlet
Busbar group is fixed on above cabinet inwall by insulator respectively.On the right side of alternating current inlet wire busbar group, projecting terminal connects inlet wire electricity
Cable, left side projecting terminal is connected to the left side projecting terminal of rectified power module laminated bus bar.Stretch on the left of exchange outgoing line busbar group
Go out the right side projecting terminal that terminal is connected to inverted power module laminated bus bar, on the right side of exchange outgoing line busbar group, projecting terminal connects
Outlet cable.
Described rectified power module and inverted power module are respectively arranged on cabinet by one piece of heat-radiating substrate；Rectified power
The heat-radiating substrate that module is located with inverted power module is respectively connected a heat-pipe radiator being located at outside cabinet, heat-pipe radiator
Either above or below installs cooling fan.
Advantages of the present invention is：
1st, a kind of three level IGBT power cabinets based on heat-pipe radiator of the present invention, by will be integrated for three level IGBT brachium pontis
To in separate modular, then mix drive circuit and dc-link capacitance module and laminated bus bar and heat-pipe radiator, component placement
More rationally, structure is compacter, radiating efficiency is higher；
2nd, a kind of three level IGBT power cabinets based on heat-pipe radiator of the present invention, using the circuit structure of back-to-back type,
Make inversion identical in structure with rectified power module, it is achieved that the standardization of primary module, increased easy care
Property；And decrease the quantity of spare part and contribute to maintenance and debugging efforts；
3rd, the present invention is a kind of adopts heat pipe heat radiation based on three level IGBT power cabinet major power devices of heat-pipe radiator,
Advantage that heat-pipe radiator has aluminium radiator and copper radiator concurrently, it is possible to achieve the high efficiency and heat radiation under natural conditions, exists simultaneously
It is additionally provided with the blower fan with temperature controller in use, automatic blower fan after the too high limit of ambient temperature, this guarantees power device and exist
Far below the specified for a long time operation under its limit state.And, noiselessness when heat-pipe radiator normally runs, equipment dust is few,
This brings great convenience when all overhauling to attendant.
4th, a kind of three level IGBT power cabinets based on heat-pipe radiator of the present invention, the degree of modularity is higher, circuit stray
Inductance is less, and volume compact is lightweight, handling facility, is easily installed transport, can be suitable for various engineerings and Application in mining occasion.
Brief description
Fig. 1 is a kind of three level IGBT power cabinet overall structure cross-sectional schematic based on heat-pipe radiator of the present invention；
Fig. 2 be the present invention a kind of based on rectified power module in three level IGBT power cabinets of heat-pipe radiator and inversion work(
Components' placement schematic diagram in rate module；
Fig. 3 is a kind of three level IGBT power cabinet heat-pipe radiators based on heat-pipe radiator of the present invention and alternating current inlet wire
Hole position, exchange outlet hole position position schematic diagram.
In figure：
1- cabinet 2- rectified power module 3- inverted power module heat-pipe radiator
4- dc-link capacitance module 5- rectified current sensor 6- inverter current sensor
7-IGBT 8- drive module 9- neutral point clamp diode
10- heat-radiating substrate 11- heat-pipe radiator 12- rectified power module laminated bus bar
13- inverted power module laminated bus bar 14- dc-link capacitance module laminated bus bar 15- alternating current inlet wire busbar group
16- exchanges outgoing line busbar group 17- insulator 18- alternating current inlet wire hole position
19- exchanges outlet hole position
Specific embodiment
A kind of three level IGBT power cabinets based on heat-pipe radiator of the present invention, including cabinet 1, rectified power module 2, inverse
Variable power module 3, dc-link capacitance module 4, rectified current sensor 5, inverter current sensor 6 and laminated bus bar, such as
Shown in Fig. 1.Rectified power module 2, inverted power module 3 and dc-link capacitance module 4 are arranged in cabinet 1, and adopt
Flat board mounting means, is fixed on cabinet 1 rear wall side by side, and rectified power module 2, inverted power module 3 are located at direct current mother respectively
Line capacitance module 4 both sides, adopt the circuit structure of back-to-back type it is achieved that the standardization of primary module, increased easy dimension between three
Shield property.And form the circuit structure of back-to-back type so that inverted power module 2 and rectified power module 3 complete phase in structure
With.
Rectified power module 2 is sent to inverted power module 3 for line voltage is rectified into DC voltage；Simultaneously will be reversely
The energy that braking produces is reverse into net side voltage to frequency by inverted power module 3 and is sent to electrical network.Inverted power module 3 is used for will
DC power conversion becomes alternating current, by conducting and the shutoff of electronic power switch, completes the function of inversion.Dc-link capacitance mould
Group as Support Capacitor, that is, maintain bus DC voltage constant so as to substantially remain in certain stationary value scope；But also
Serve certain energy storage, the effect of flat ripple.
Rectified power module 2 is respectively provided with 6 IGBT7 and corresponding drive module 8 and 6 with inverted power module 3
Point clamp diode 9, is respectively and fixedly installed on two pieces of heat-radiating substrates 10, as shown in Figure 2；Wherein, rectified power module 2 with inverse
Variable power module 3 adopts identical components' placement mode, and separately wherein 6 IGBT7 are respectively the first～the 6th IGBT；Then wherein
First～the 3rd IGBT is transversely mounted on heat-radiating substrate 10 top respectively, and corresponding drive module 8 is respectively with the first～the 3rd
IGBT is vertically arranged, below the first～the 3rd IGBT；Need between the first～the 3rd IGBT and corresponding 3 drive modules 8 to protect
Stay secured electrical gap.6 neutral point clamp diodes 9 are fixedly installed in the middle part of heat-radiating substrate 10, and point two arrangements are put, and often arrange
3, symmetrical above and below；Need to keep enough gaps between two simultaneously symmetrical neutral point clamp diodes 9 climbs electric spacing；4th
～the six IGBT is transversely mounted on heat-radiating substrate 10 bottom respectively, corresponding 3 drive modules 8 respectively with the 4th～the 6th IGBT
Vertically arranged, below the 4th～the 6th IGBT；Need between the 4th～the 6th IGBT and corresponding 3 drive modules 8 to retain peace
Full electric clearance.Make heat-radiating substrate 10 area minimum by above-mentioned layout in the case of ensureing safe distance and not shadow as far as possible
Ring the wiring of drive module 8.Above-mentioned rectified power module 2 and inverted power module 3 pass through the respective heat-radiating substrate being located respectively
10 are arranged on cabinet 1 rear wall upper left-hand and right side.The heat-radiating substrate that rectified power module 2 is located with inverted power module 3
10 each one heat-pipe radiator 11 being located at outside cabinet 1 of connection, as shown in figure 3, heat-pipe radiator 11 either above or below peace
Dress cooling fan.Heat-pipe radiator has the advantages that heat-sinking capability is strong and cost performance is high.Heat pipe heat radiation under the conditions of equal thermal resistance
Device consumable material is only the half of aluminum (copper) entity radiator, and compares water cooling equipment and decrease water circuit system equipment.?
After IGBT behaves, thermal source is in close contact thermotube wall and absorbs heat, and dielectric fluid (water) evaporation becomes steam and along pipe
Road spreads；To press-fiting gelled condensation segment, steam is condensed into water, discharges the latent heat of vaporization；Under gravity, water
Return evaporator section.This completes the cycle of operation of a heat transfer.As long as the liquid evaporation that inside heat pipe is carried out, steam stream
Dynamic, steam condensation, condensation water 4 working cycle process of backflow are not destroyed, and heat pipe will be continuously big from thermal source transmission
The heat of amount is to cold end.This does not need outer power to realize, but the gravity by surplus (steam pressure difference) and dielectric fluid in heat transfer
To drive.In order to increase condensation segment condensation effect, the present invention realizes the radiating of heat-pipe radiator 11 also by installing external fan,
Ensure that the efficient of radiating is adapted to the severe extreme operating conditions such as any humidity, dust simultaneously in maximum capacity.
Described laminated bus bar includes rectified power module laminated bus bar 12, inverted power module laminated bus bar 13 and direct current mother
Line capacitance module laminated bus bar 14, is covered each by rectified power module 2, inverted power module 3 and dc-link capacitance mould
Organize 4 surfaces, and be respectively designed with and device first in rectified power module 2, inverted power module 3 and dc-link capacitance module 4
The corresponding spiro keyhole position of part position of mounting hole, and then by bolt by rectified power module laminated bus bar 12, inverter power mould
Block laminated bus bar 13 and dc-link capacitance module laminated bus bar 14 respectively with rectified power module 2, inverted power module 3 and
Dc-link capacitance module 4 is fixing.Why adopt stack bus bar in the present invention, be that a kind of multilamellar is multiple mainly due to laminated bus bar
Close the connection row of structure, compared with traditional, heavy, time-consuming and troublesome wiring method, stack bus bar can provide the modern times
, the distribution system of easy to design and install quick and clear in structure；Meanwhile, laminated bus bar has low inductance, Low ESR, resists and do
Disturb, reliability height, save space, assembling succinct, quick the features such as, can be used as the connection member of high-power modular.Above-mentioned whole
Stream power model laminated bus bar 12, inverted power module laminated bus bar 13 are three with dc-link capacitance module laminated bus bar 14
Multilayer laminated structure, intermediate layer is insulation board, and upper strata is separated it is ensured that insulating with lower floor.Wherein, rectified power module laminated bus bar
12 right side projecting terminal are directly connected with dc-link capacitance module laminated bus bar 14 left side projecting terminal；Inverted power module layer
The projecting terminal in folded busbar 13 left side is directly connected with dc-link capacitance module laminated bus bar 14 right side projecting terminal.Thus,
Make the connection bus between dc-link capacitance module 4 and rectified power module 2 and inverted power module 3 the shortest, be effectively reduced
Stray inductance therebetween, is conducive to improving the turn-off characteristic of IGBT, and is easy to change, safeguards.
It is a kind of scattered based on heat pipe that described rectified current sensor 5 and inverter current sensor 6 are respectively intended to the collection present invention
The alternating current inlet wire of three level IGBT power cabinets entirety of hot device and the electric current exchanging outlet, for providing in real time for control system
Current digital amount information.In the present invention rectified current sensor 5 with and inverter current sensor 6 be fixedly installed in cabinet 1 respectively
With right side on the left of inwall, and rectified current sensor 5 with and inverter current sensor 6 centre bore be each passed through alternating current inlet wire busbar
Group 15 with exchange outgoing line busbar group 16.Alternating current inlet wire busbar group 15 is fixed by insulator 17 respectively with exchanging outgoing line busbar group 16
Above cabinet 1 inwall.Alternating current inlet wire busbar group 15 right side projecting terminal connects inlet wire cable, and left side projecting terminal is connected to whole
The left side projecting terminal of stream power model laminated bus bar 12.Exchange outgoing line busbar group 16 left side projecting terminal is connected to inverter power
Module laminated bus bar 13 right side projecting terminal, exchange outgoing line busbar group 16 right side projecting terminal connects outlet cable.
A kind of distribution of the three level IGBT power cabinets based on heat-pipe radiator of the present invention is integrally using the side going out on enterprising
Formula, only reserves alternating current inlet wire hole position 18 and exchange outlet hole position 19 in cabinet 1 top surface, as shown in figure 3, making one kind of the present invention be based on
Three level IGBT power cabinets of heat-pipe radiator can be suitable for various engineerings and Application in mining occasion.
Claims (4)
1. a kind of three level IGBT power cabinets based on heat-pipe radiator, including rectified power module, inverted power module, direct current
Bus capacitor module, laminated bus bar and rectified current sensor and inverter current sensor；It is characterized in that：
Described rectified power module is identical with the components' placement mode in inverted power module, passes through one piece of heat-radiating substrate respectively
It is arranged on cabinet rear wall upper left-hand and right side, the heat-radiating substrate that rectified power module is located with inverted power module is respectively connected
One heat-pipe radiator, heat-pipe radiator either above or below installs cooling fan；Dc-link capacitance module is fixedly mounted on
In the middle of cabinet rear wall, make rectified power module and inverted power module symmetrical with respect to dc-link capacitance module；
Described laminated bus bar includes rectified power module laminated bus bar, inverted power module laminated bus bar and dc-link capacitance mould
Group laminated bus bar, is fixedly installed in rectified power module, inverted power module and dc-link capacitance module surface respectively；Its
In, projecting terminal projecting terminal directly and on the left of dc-link capacitance module laminated bus bar on the right side of rectified power module laminated bus bar
It is connected；Projecting terminal on the left of inverted power module laminated bus bar directly stretches out with the right side of dc-link capacitance module laminated bus bar
Terminal is even；
Described rectified current sensor with and inverter current sensor be fixedly installed in respectively on the left of cabinet inwall with right side, and biography
Sensor centre bore is each passed through alternating current inlet wire busbar group and exchanges outgoing line busbar group；Alternating current inlet wire busbar group with exchange outgoing line busbar
Group is fixed on above cabinet inwall by insulator respectively；On the right side of alternating current inlet wire busbar group, projecting terminal connects inlet wire cable, left
Side projecting terminal is connected to the left side projecting terminal of rectified power module laminated bus bar；Projecting terminal on the left of exchange outgoing line busbar group
It is connected to the right side projecting terminal of inverted power module laminated bus bar, on the right side of exchange outgoing line busbar group, projecting terminal connects outlet electricity
Cable.
2. as claimed in claim 1 a kind of three level IGBT power cabinets based on heat-pipe radiator it is characterised in that：Described rectification
Power model is respectively provided with 6 IGBT and corresponding driving and 6 neutral point clamp diodes with inverted power module；Another rectification work(
Rate module is respectively the first～the 6th IGBT with 6 IGBT in inverted power module；Then the wherein first～the 3rd IGBT difference
It is transversely mounted on heat-radiating substrate top, corresponding drive module is vertically arranged with the first～the 3rd IGBT respectively, positioned at first～
Below 3rd IGBT；6 neutral point clamp diodes are fixedly installed in the middle part of heat-radiating substrate, and point two arrangements are put, and often arrange 3,
Symmetrical above and below；4th～the 6th IGBT is transversely mounted on heat-radiating substrate bottom respectively, and corresponding 3 drive modules are respectively with the 4th
～the six IGBT is vertically arranged, below the 4th～the 6th IGBT.
3. as claimed in claim 2 a kind of three level IGBT power cabinets based on heat-pipe radiator it is characterised in that：Described first
Between the～the three IGBT and corresponding 3 drive modules, there is electric clearance；Symmetrical two in 6 neutral point clamp diodes
Have between neutral point clamp diode and climb electric spacing；Between the 4th～the 6th IGBT and corresponding 3 drivings, there is electric clearance.
4. as claimed in claim 1 a kind of three level IGBT power cabinets based on heat-pipe radiator it is characterised in that：Described cabinet
Left and right sidewall is installed and is determined insulator, and left and right sides insulated terminal is located between alternating current inlet wire busbar group and rack left side wall respectively,
Between exchange outgoing line busbar group and rack right side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410471616.7A CN104201867B (en) | 2014-09-16 | 2014-09-16 | Three-level IGBT power cabinet based on heat pipe radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410471616.7A CN104201867B (en) | 2014-09-16 | 2014-09-16 | Three-level IGBT power cabinet based on heat pipe radiator |
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| Publication Number | Publication Date |
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| CN104201867A CN104201867A (en) | 2014-12-10 |
| CN104201867B true CN104201867B (en) | 2017-02-08 |
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| CN201410471616.7A Active CN104201867B (en) | 2014-09-16 | 2014-09-16 | Three-level IGBT power cabinet based on heat pipe radiator |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098531B (en) * | 2015-09-23 | 2018-04-27 | 上海电科电器科技有限公司 | The connector of switch |
| CN105958806A (en) * | 2016-05-31 | 2016-09-21 | 中电普瑞科技有限公司 | High-voltage sub-module based on MMC circuit topology |
| CN109245556B (en) * | 2018-08-31 | 2024-03-26 | 西安中车永电电气有限公司 | High-power loop heat pipe power module for internal combustion locomotive and mirror image structure thereof |
| CN110323954B (en) * | 2019-08-08 | 2020-11-03 | 中车青岛四方车辆研究所有限公司 | Three-level traction power module based on SiC power device and inverter circuit |
| CN113972844B (en) * | 2020-07-24 | 2024-03-01 | 中车株洲电力机车研究所有限公司 | Electric and electronic traction transformer and high-voltage three-level power module thereof |
| CN114079389A (en) * | 2020-08-12 | 2022-02-22 | 中车株洲电力机车研究所有限公司 | Converter module and main structure thereof |
| CN113497563A (en) * | 2021-06-22 | 2021-10-12 | 北京机械设备研究所 | Three-level power module and three-phase inverter system |
| CN113659850B (en) * | 2021-08-18 | 2023-03-10 | 中车青岛四方车辆研究所有限公司 | Inversion module and high-frequency auxiliary converter equipment with same |
| CN113659851B (en) * | 2021-08-18 | 2023-03-14 | 中车青岛四方车辆研究所有限公司 | Power module and traction converter with same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2666027Y (en) * | 2003-12-24 | 2004-12-22 | 北京利德华福电气技术有限公司 | High-pressure large power frequency converter with double heat radiation fans system |
| CN100426639C (en) * | 2007-01-04 | 2008-10-15 | 冶金自动化研究设计院 | High-tension integral gate change transistor three-level frequency-converter power cabinet |
| CN201115201Y (en) * | 2007-08-06 | 2008-09-10 | 武汉洪山电工科技有限公司 | Novel power cabinet based on thermal tube heat radiation system |
| CN101110548B (en) * | 2007-08-17 | 2010-12-01 | 广州智光电机有限公司 | Air cooling high power inverter power cabinet with large radiating structure |
| US8254076B2 (en) * | 2009-06-30 | 2012-08-28 | Teco-Westinghouse Motor Company | Providing modular power conversion |
| CN201590747U (en) * | 2009-11-27 | 2010-09-22 | 艾默生网络能源有限公司 | Air-cooled power device |
| CN202503421U (en) * | 2011-12-30 | 2012-10-24 | 中冶赛迪电气技术有限公司 | Three-level AC-DC-AC water-cooled frequency conversion device |
| CN103166478B (en) * | 2013-03-07 | 2016-02-10 | 上海交通大学 | A kind of high-tension integral gate change transistor five level power cabinet |
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2014
- 2014-09-16 CN CN201410471616.7A patent/CN104201867B/en active Active
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