CN202663117U - Power inversion unit structure of static var generator - Google Patents
Power inversion unit structure of static var generator Download PDFInfo
- Publication number
- CN202663117U CN202663117U CN 201220154632 CN201220154632U CN202663117U CN 202663117 U CN202663117 U CN 202663117U CN 201220154632 CN201220154632 CN 201220154632 CN 201220154632 U CN201220154632 U CN 201220154632U CN 202663117 U CN202663117 U CN 202663117U
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- China
- Prior art keywords
- heat preservation
- temperature storage
- igbt
- power
- radiator
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model discloses a power inversion unit structure of a static var generator. The power inversion unit is composed of an IGBT (Insulated Gate Bipolar Translator) and a radiator thereof, a direct-current capacitor and an external power unit frame, wherein the radiator comprises a heat preservation piece and a radiating flange connected with the heat preservation piece; the two ends of the heat perseveration piece are bent towards one side of the radiating flange to form left and right heat preservation modules; the IGBT is fixed to the heat preservation piece which is fixed to the external power unit frame. In the power inversion unit structure of the static var generator, the radiating flange and the heat preservation modules are bent to increase the area of the heat preservation piece in the radiating flange without causing increase of the volume of the whole cabinet due to increase of space volume caused by overlarge area of the heat preservation piece; therefore, the heat dissipation area is increased and the heat dissipation speed is accelerated; in this way, the problem that the IGBT is burnt down due to that the temperature rise caused by power consumption increase in large-current operation is out of limit is solved.
Description
Technical field
The utility model relates to reactive power compensation and harmonic wave and suppresses the field, the design of core (power cell) in the static reacance generator (SVG) that specifically develops for industrial electrical network quality controlling and reactive power compensation.
Background technology
Power inverting unit in the existing static reacance generator (SVG), mostly have following problem: 1: the area of fin is too little, general all is (not the having bending side) on a plane, and the excessive spatial volume that causes easily in the power cell of fin area is inadequate.2: direct current capacitor is placed with fin pitch close to too, causes easily the rising of dc capacitor actuator temperature, does not add fan and dispels the heat and generally all ignore this point.3: air-out direction has from cross air blasting, up-draught, canyon etc., and their the designed wind circulation apoplexy direction of going out always with the perpendicular direction that blows into, so just cause easily local eddy current, affect wind speed, cause the part key position in the radiator to be difficult to heat radiation.
The utility model content
The utility model is for avoiding the weak point of above-mentioned technology, thus targetedly development and Design a kind of have rapid heat dissipation, good heat dissipation effect, wind speed evenly, do not have eddy current wind, distribute compact, to all heatings in the power cell and may can both play because of the device that heat causes temperature rise to be increased power inverting cellular construction in a kind of novel static reacance generator (SVG) of radiating effect.
The utility model technical solution problem adopts following technical scheme:
The power inverting cellular construction of static reacance generator, this power inverting unit is comprised of IGBT and radiator, direct current capacitor and power cell outside framework, its design feature is, described radiator comprises temperature storage sheet and the fin that is connected with the temperature storage sheet, and described temperature storage sheet two ends form left and right temperature storage module to fin one side bending; Described IGBT is fixed on the temperature storage sheet, and the temperature storage sheet is fixed on the power cell outside framework.
The utility model design feature is that also described direct current capacitor and radiator are fixing side by side, and the below of described radiator and dc capacitor is equipped with fan.
Compared with the prior art, the utility model advantage applies exists:
1: in the utility model in order to increase the area of temperature storage sheet in the fin, and don't cause the increase of whole cabinet volume as for causing the increase of spatial volume because temperature storage sheet area is excessive, fin temperature storage module adopts bending shape with increasing heat radiation area, accelerate radiating rate, thereby solved IGBT when the large electric current operation because power consumption strengthens burning that the temperature that causes raises and transfinite and cause.
2: because spatial design compactness, reasonable has been saved the space, increase because heat causes temperature for fear of direct current capacitor in the utility model, according to its temperature rise size, and taked to increase the fan of appropriate power for the technology of dispelling the heat.
3: in the utility model in order to improve in the radiator wind speed of any point on the fin and to avoid entering and go out the local eddy currents wind that direction becomes 90 degree to cause owing to wind, taked air-out mode from bottom to top, and the going out to being consistent with the approach axis of wind of wind, through repeatedly testing, verifying, proved the good radiating effect of having of this air-out direction.
Description of drawings
Fig. 1 is the structural representation of temperature storage sheet in the utility model radiator.
Fig. 2 is the utility model power inverting cellular construction schematic diagram.
Number in the figure: 1, IGBT, 2 direct current capacitors, 3 power cell outside frameworks, 4 temperature storage sheets, 5 fin, 6 left temperature storage modules, 7 right temperature storage modules, 8 fans.
The utility model is described further by embodiment below in conjunction with accompanying drawing.
Embodiment
As shown in Figure 2, the power inverting unit is comprised of IGBT1 and radiator, direct current capacitor 2 and power cell outside framework 3, radiator comprises temperature storage sheet 4 and the fin 5 that is connected with the temperature storage sheet, and temperature storage sheet 4 two ends form left temperature storage module 6, right temperature storage module 7 to fin one side bending; IGBT is fixed on the temperature storage sheet 4, and temperature storage sheet 4 is fixed on the power cell outside framework 3.
As shown in Figure 1, the structural representation of the temperature storage sheet of radiator, as seen in Figure 1, the temperature storage sheet is the bending form, surface area does not reduce, but has reduced spatial volume.The heat that IGBT sends was stored on the temperature storage sheet before this, and then by the very thin very thin fin of temperature storage sheet back heat was dissipated, and the area of fin is selected all to select according to the IGBT power consumption calculation.
Among Fig. 2, the IGBT heating causes that temperature raises in power cell, each component heat conduction of simultaneously direct current capacitor unit contact causes that the dc capacitor temperature raises, if the heat above the dc capacitor is waved loose not going out, can cause its reduction of performance, thereby might affect the capability and performance of whole product, capacitor is burnt in more serious meeting, for the heat that direct current capacitor is accumulated above dispels away fast, dc capacitor and radiator are fixing side by side, below radiator and dc capacitor, be equipped with fan 8, be the canyon mode.
Among Fig. 1, according to radiating principle as can be known, the wind speed size is the key factor that affects fin radiating rate speed, and the utility model has adopted the mode of directly blowing, and cold wind is entered from below, then passes through fin, from out top.Because wind does not turn to, therefore the vortex phenomenon of wind can not occur, can not cause a certain vital point on the fin substantially not have wind speed to exist this phenomenon to occur, thereby solve the heat dissipation problem of IGBT.
Claims (2)
1. the power inverting cellular construction of static reacance generator, this power inverting unit is comprised of IGBT and radiator, direct current capacitor and power cell outside framework, it is characterized in that, described radiator comprises temperature storage sheet and the fin that is connected with the temperature storage sheet, and described temperature storage sheet two ends form left and right temperature storage module to fin one side bending; Described IGBT is fixed on the temperature storage sheet, and the temperature storage sheet is fixed on the power cell outside framework.
2. the power inverting cellular construction of static reacance generator according to claim 1 is characterized in that, described direct current capacitor and radiator are fixing side by side, and the below of described radiator and dc capacitor is equipped with fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220154632 CN202663117U (en) | 2012-04-12 | 2012-04-12 | Power inversion unit structure of static var generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220154632 CN202663117U (en) | 2012-04-12 | 2012-04-12 | Power inversion unit structure of static var generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202663117U true CN202663117U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220154632 Expired - Fee Related CN202663117U (en) | 2012-04-12 | 2012-04-12 | Power inversion unit structure of static var generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN202663117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449687A (en) * | 2015-12-16 | 2016-03-30 | 国网浙江省电力公司湖州供电公司 | Low voltage reactive distributed compensation apparatus |
-
2012
- 2012-04-12 CN CN 201220154632 patent/CN202663117U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449687A (en) * | 2015-12-16 | 2016-03-30 | 国网浙江省电力公司湖州供电公司 | Low voltage reactive distributed compensation apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20150412 |
|
| EXPY | Termination of patent right or utility model |