CN104852591A - High-voltage high-power converter device - Google Patents
High-voltage high-power converter device Download PDFInfo
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- CN104852591A CN104852591A CN201510303026.8A CN201510303026A CN104852591A CN 104852591 A CN104852591 A CN 104852591A CN 201510303026 A CN201510303026 A CN 201510303026A CN 104852591 A CN104852591 A CN 104852591A
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Abstract
The invention provides a high-voltage high-power converter device comprising a heat pipe radiator, a rectifier and inverter unit, a drive unit, a direct-current capacitor group, an alternating-current copper bar and a direct-current composite bus-bar, all of which are arranged inside a housing. The housing is composed of an upper cover plate, a front panel, a rear air duct plate, a base and two side plates, wherein a middle partition plate is arranged between the upper cover plate and the base and parallel to the front panel to divide the housing into two cavities. The heat pipe radiator is arranged in one cavity, and the rectifier and inverter unit, the drive unit, the direct-current capacitor group, the alternating-current copper bar and the direct-current composite bus-bar are arranged in the other cavity. Compared with the prior art, the high-voltage high-power converter device provided by the invention has the characteristics of high radiating efficiency, small size, light weight, easy disassembly and maintenance and reasonable structure layout, and can meet the requirements of a large-capacitor SVG device.
Description
Technical field
The present invention relates to power system reactive power compensation technical field, be specifically related to a kind of high-power current converter based on heat-pipe radiator.
Background technology
Along with the development of power electronic technology, high-voltage dynamic reactive compensation device--static reacance generator (Static VarGenerator, SVG) is widely applied.SVG device is made up of secondary devices such as switch incoming line cabinet, startup cabinet, (PCC) power and control device, wherein (PCC) power is the nucleus equipment of SVG device, (PCC) power is generally made up of tens IGBT convertor units according to system requirements, IGBT convertor unit is the main components realizing SVG function, is also to determine the characteristic of SVG, the key factor of volume.Because IGBT is a kind of high-power electric and electronic element, caloric value can reach thousands of watts, and the distinctive character of element requires that IGBT temperature when normal use can not exceed a certain boundary, and this just requires that being equipped with the very strong cooler of heat-sinking capability leaves its heat in time.Therefore, in cellular construction design, need emphasis to consider the requirement of its ventilation and heat.At present because the engineered capacity of SVG device constantly increases, common air-cooled radiator can not meet heat radiation needs; Configuration water-cooling heat radiating system then equipment cost is expensive, and system complex, water system easily goes wrong, thus affects the reliability of equipment.The stronger heat-pipe radiator forced air cooling mode of exchange capability of heat is used to solve the problem.But conventional heat pipe radiator overall dimension is large, affects integral layout, tube core axial heat conduction thermal resistance is large, and operating characteristic coupling is improper, cannot solve the heat dissipation problem of some power device.Therefore, need to provide a kind of New IGBT current converter according to equipment and element characteristic, its overall structure form is optimized, thus effectively solve the problems such as installation, heat radiation and busbar distributed inductance.
Summary of the invention
In order to meet the needs of prior art, the invention provides a kind of high-power current converter.
Technical scheme of the present invention is:
Described device comprises the heat-pipe radiator be arranged in housing, commutation inversion unit, driver element, direct current capacitor group, AC copper-line and direct current composite bus bar;
Described housing is made up of upper cover plate, front panel, wind abaft the beam guidance tape, base and two side plates, and central dividing plate is arranged between described upper cover plate and base, and is parallel to described front panel, thus housing is divided into two cavitys;
Described heat-pipe radiator is arranged in a cavity, and described commutation inversion unit, driver element, direct current capacitor group, AC copper-line and direct current composite bus bar are all arranged in another cavity.
Preferably, the bottom of described direct current capacitor group is arranged on described base, and top is provided with described direct current composite bus bar; Described direct current composite bus bar comprises positive polarity busbar and negative polarity busbar;
Preferably, described commutation inversion cellular installation on described central dividing plate, and is fixed on the middle part of described cavity; Central dividing plate between every two commutation inversion unit installs a temperature sensor;
Preferably, described AC copper-line comprises interchange inlet wire copper bar and exchanges outlet copper bar; Described AC copper-line is arranged on described central dividing plate, and is fixed on the top of described cavity;
Preferably, described driver element comprises the first driver element and the second driver element; Described first driver element and the second driver element are arranged on described side plate respectively, and are all fixed on the middle part of described cavity;
Preferably, described heat-pipe radiator comprises radiator base plate, heat pipe and fin; Described radiator base plate is fixed on described central dividing plate; Described heat pipe is arranged on radiator base plate;
Preferably, the outer wall of described heat pipe welds described fin, equally spacedly on inwall is provided with trapezoidal groove; Described heat pipe and described radiator base plate angle are 10 °;
Preferably, the top and the bottom that are provided with the cavity latus inframedium of described heat-pipe radiator install a temperature sensor respectively;
Preferably, guide rail is provided with below described base;
Preferably, described front panel is provided with handle.
Compared with immediate prior art, excellent effect of the present invention is:
1, in technical solution of the present invention, housing comprises two individual cavity be independent of each other, and a cavity is as heat dissipation wind channel, and wind loss is little, is convenient to turnover and ventilates and the installation of external air channel layout; Another cavity is used for installation power components and parts, rationally distributed, compact conformation;
2, in technical solution of the present invention, heat-pipe radiator requires and designs to have excellent operating characteristic for IGBT element and overall structure, without problems such as dry combustion methods, oppositely heat absorption under general operating mode;
3, in technical solution of the present invention, heat pipe adopts capillarity and Action of Gravity Field to combine backflow dynamic mode, reduces the angle of inclination of heat pipe, thus reduces radiator volume; Open axial trapezoidal groove inside heat pipe, enough large capillary pumped pressure, improves axial heat conduction ability, and radial thermal resistance is less, and manufacture simple, process repeatability is good, and condensation end of heat pipe welding is longitudinally Wavelike finned, and unit volume radiating efficiency is high;
4, in technical solution of the present invention, in housing, heat dissipation wind channel is imported and exported and commutation inversion unit both sides mounting temperature sensor, is convenient to the protection of monitoring to temperature and components and parts;
5, in technical solution of the present invention, direct current composite bus bar design concision and compact, utilizes the connection that less space realizes between big current, high voltage components and parts, External Insulation is good and inductance is low, reduction element voltage punch through damage probability;
6, in technical solution of the present invention, direct current capacitor group is arranged on housing inner bottom part, compact conformation, and ensure that resistance to overturning;
7, a kind of high-power current converter provided by the invention, radiating efficiency is high, and volume is little, lightweight, is convenient to demolition and maintenance, and topology layout is reasonable, meets the requirement of Large Copacity SVG device.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1: a kind of high-power current converter front view in the embodiment of the present invention;
Fig. 2: a kind of high-power current converter end view in the embodiment of the present invention;
Fig. 3: a kind of high-power current converter vertical view in the embodiment of the present invention;
Fig. 4: heat pipe sectional view in the embodiment of the present invention;
Fig. 5: heat pipe end view in the embodiment of the present invention;
Fig. 6: the axis side view such as a kind of high-power current converter in the embodiment of the present invention;
Wherein, 1: housing; 2: heat-pipe radiator; 3: AC copper-line; 4: commutation inversion unit; 5: driver element; 6: direct current composite bus bar; 7: direct current capacitor group; 8: wind abaft the beam guidance tape; 9: central dividing plate; 10: upper cover plate; 11: side plate; 12: front panel; 13: exchange inlet wire copper bar; 14: exchange outlet copper bar; 15:IGBT; 16: temperature sensor; 17: driver element box body; 18: positive polarity busbar; 19: negative polarity busbar; 20: base; 21: guide rail; 22: handle; 23: radiator base plate; 24: heat pipe; 25: fin; 26: trapezoidal groove.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
A kind of high-power current converter provided by the invention, according to the characteristic of electric equipment and element, the overall structure of high-power current converter is optimized, current converter after optimization is rationally distributed, compact conformation, efficiently solves the problems such as current converter installation, heat radiation and busbar distributed inductance.
In the present invention, a kind of specific embodiment of high-power current converter as shown in figures 1 to 6, is specially:
This current converter comprises housing 1, heat-pipe radiator 2, AC copper-line 3, commutation inversion unit 4, driver element 5, direct current composite bus bar 6 and direct current capacitor group 7.Wherein,
Heat-pipe radiator 2, AC copper-line 3, commutation inversion unit 4, driver element 5, direct current composite bus bar 6 and direct current capacitor group 7 are all arranged in housing 1.
Housing 1 is the cuboid framework be made up of upper cover plate 10, front panel 12, wind abaft the beam guidance tape 8, base 20 and two side plates 11, and central dividing plate 9 is arranged between upper cover plate 10 and base 20, and is parallel to front panel 12, thus housing 1 is divided into two cavitys.Heat-pipe radiator 2 is arranged in a cavity, and commutation inversion unit 4, driver element 5, direct current capacitor group 7, AC copper-line 3 and direct current composite bus bar 6 are all arranged in another cavity.
In the present embodiment, the minister of high-quality aluminizing zinc sheet metal bending and punching press all selected by upper cover plate 10, front panel 12, wind abaft the beam guidance tape 8, base 20 and two side plates 11, back side panel air channel 8 and central dividing plate 9 constitute the heat-dissipating cavity of a upper and lower opening, central dividing plate 9, upper cover plate 10, front panel 12, base 20 and two side plates 11 constitute components and parts and install cavity, and it is separate that cavity installed by above-mentioned heat-dissipating cavity and components and parts.
In the present embodiment, DC load busbar is connected to commutation inversion unit 4 by after direct current capacitor group 7 parallel connection, its positive polarity busbar 18 and negative polarity busbar about 19 are set up in parallel, central filler has NMN insulating material to isolate, the outside of DC load busbar 6 is provided with insulating barrier, to reduce busbar distributed inductance.
As illustrated in fig. 1 and 2:
1.: the bottom of direct current capacitor group 7 is arranged on base 20, and top is provided with direct current composite bus bar 6, and direct current composite bus bar 6 comprises positive polarity busbar 18 and negative polarity busbar 19.
: commutation inversion unit 4 is arranged on central dividing plate 9, and be fixed on the middle part of commutation inversion unit 4 place cavity 2.; Central dividing plate between every two commutation inversion unit 4 installs a temperature sensor.In the present embodiment, the number of commutation inversion unit 4 is four, is therefore provided with three temperature sensors altogether, gathers the temperature of radiator base plate 23, prevents temperature too high damage commutation inversion unit 4.
In the present embodiment, commutation inversion unit 4 is made up of power electronic device IGBT.
3.: AC copper-line 3 comprises interchange inlet wire copper bar 13 and exchanges outlet copper bar 14; AC copper-line 3 is arranged on central dividing plate 9, and is fixed on the top of AC copper-line 3 place cavity.In the present embodiment, AC copper-line also comprises strutting piece, for fixing interchange inlet wire copper bar 13 with exchange outlet copper bar 14.
4.: driver element 5 comprises the first driver element and the second driver element; First driver element and the second driver element are arranged on side plate 11 respectively, and are all fixed on the middle part of driver element 5 place cavity.
In the present embodiment, the first driver element and the second driver element include Driver Card and driver element box body 17, and driver element 5 is fixed on the position near commutation inversion unit 4 on side plate 11, to reduce the inner cabling of housing 1.
As shown in Figures 2 and 3:
1.: heat-pipe radiator 2 comprises radiator base plate 23, heat pipe 24 and fin 25.Wherein,
Radiator base plate 23 is fixed on central dividing plate 9, and heat pipe 24 is arranged on radiator base plate 23;
The outer wall welding fin 25 of heat pipe 24, equally spacedly on inwall is provided with trapezoidal groove 26; Heat pipe 24 and radiator base plate 23 angle are 10 ° as shown in Figure 2.In the present embodiment, heat pipe 24 and radiator base plate 23 angle are level upwards 10 °.
In the present embodiment, radiator base plate 23 is alloy aluminum 6061, and front surface fine finishining has less surface roughness, is provided with groove and fixing hole, is respectively used to install AC copper-line 3 and commutation inversion unit 4.Punch in radiator base plate 23 back side, for vacuum brazing heat pipe 24, soldering vacuum degree is 5 × 10
-3, joint clearance of brazing is 0.08mm, and horizontal tilt is 10 °.
In the present embodiment, heat pipe 24 is gravity auxiliary heat pipe, adopts airtight copper tube, and one end is evaporation ends, and the other end is condensation end, and heat pipe 24 inside is subnormal ambient, and its trapezoidal groove is used for providing capillary head and liquid flow channels.Evaporation ends vacuum brazing is inner at radiator base plate 23, condensation end welding longitudinal fin 25, thus increases heat exchange area.
In the present embodiment, fin 25 is 0.5mm waveform aluminium sheet, and processes the flange of certain size.
2.: the top and the bottom that are provided with the cavity latus inframedium 11 of heat-pipe radiator 2 install a temperature sensor respectively.
As shown in Fig. 1,2 and 6, base 20 is provided with guide rail 21, for mobile device below; Front panel 12 is provided with handle 22.
Finally should be noted that: described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
Claims (10)
1. a high-power current converter, is characterized in that, described device comprises the heat-pipe radiator be arranged in housing, commutation inversion unit, driver element, direct current capacitor group, AC copper-line and direct current composite bus bar;
Described housing is made up of upper cover plate, front panel, wind abaft the beam guidance tape, base and two side plates, and central dividing plate is arranged between described upper cover plate and base, and is parallel to described front panel, thus housing is divided into two cavitys;
Described heat-pipe radiator is arranged in a cavity, and described commutation inversion unit, driver element, direct current capacitor group, AC copper-line and direct current composite bus bar are all arranged in another cavity.
2. device as claimed in claim 1, it is characterized in that, the bottom of described direct current capacitor group is arranged on described base, and top is provided with described direct current composite bus bar; Described direct current composite bus bar comprises positive polarity busbar and negative polarity busbar.
3. device as claimed in claim 1, it is characterized in that, described commutation inversion cellular installation on described central dividing plate, and is fixed on the middle part of described cavity; Central dividing plate between every two commutation inversion unit installs a temperature sensor.
4. device as claimed in claim 1, is characterized in that, described AC copper-line comprises interchange inlet wire copper bar and exchanges outlet copper bar; Described AC copper-line is arranged on described central dividing plate, and is fixed on the top of described cavity.
5. device as claimed in claim 1, it is characterized in that, described driver element comprises the first driver element and the second driver element; Described first driver element and the second driver element are arranged on described side plate respectively, and are all fixed on the middle part of described cavity.
6. device as claimed in claim 1, it is characterized in that, described heat-pipe radiator comprises radiator base plate, heat pipe and fin; Described radiator base plate is fixed on described central dividing plate; Described heat pipe is arranged on radiator base plate.
7. device as claimed in claim 6, it is characterized in that, the outer wall of described heat pipe welds described fin, equally spacedly on inwall is provided with trapezoidal groove; Described heat pipe and described radiator base plate angle are 10 °.
8. device as claimed in claim 1, it is characterized in that, the top and the bottom that are provided with the cavity latus inframedium of described heat-pipe radiator install a temperature sensor respectively.
9. device as claimed in claim 1, is characterized in that, be provided with guide rail below described base.
10. device as claimed in claim 1, is characterized in that, described front panel is provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510303026.8A CN104852591B (en) | 2015-06-04 | 2015-06-04 | A kind of high-power current converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510303026.8A CN104852591B (en) | 2015-06-04 | 2015-06-04 | A kind of high-power current converter |
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| Publication Number | Publication Date |
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| CN104852591A true CN104852591A (en) | 2015-08-19 |
| CN104852591B CN104852591B (en) | 2018-04-27 |
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| CN201510303026.8A Active CN104852591B (en) | 2015-06-04 | 2015-06-04 | A kind of high-power current converter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114765425A (en) * | 2022-05-17 | 2022-07-19 | 广东首航智慧新能源科技有限公司 | Parallel assembly of rectifier modules, rectifier cabinet and direct-current power supply system thereof |
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| CN204761294U (en) * | 2015-06-04 | 2015-11-11 | 国家电网公司 | High -power change of current device of high pressure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114765425A (en) * | 2022-05-17 | 2022-07-19 | 广东首航智慧新能源科技有限公司 | Parallel assembly of rectifier modules, rectifier cabinet and direct-current power supply system thereof |
| CN114765425B (en) * | 2022-05-17 | 2023-01-17 | 上海百竹成航新能源有限责任公司 | Parallel assembly of rectifier modules, rectifier cabinet and direct-current power supply system thereof |
| US11742772B1 (en) | 2022-05-17 | 2023-08-29 | Shanghai Baizhu Chenghang New Energy Co., Ltd. | Parallel assembly of rectifier modules, rectifier cabinet and dc power supply system thereof |
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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: NARI Group Corp. Patentee after: STATE GRID CORPORATION OF CHINA Co-patentee after: C-EPRI SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: NARI Group CORPORATION STATE GRID ELECTRIC POWER INSTITUTE Patentee before: State Grid Corporation of China Co-patentee before: C-EPRI SCIENCE & TECHNOLOGY Co.,Ltd. |