CN204089196U - High-voltage chain type active filter power cell - Google Patents
High-voltage chain type active filter power cell Download PDFInfo
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- CN204089196U CN204089196U CN201420552354.2U CN201420552354U CN204089196U CN 204089196 U CN204089196 U CN 204089196U CN 201420552354 U CN201420552354 U CN 201420552354U CN 204089196 U CN204089196 U CN 204089196U
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- igbt
- polarity free
- radiator
- copper bar
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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
- Y02E40/20—Active power filtering [APF]
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Abstract
High-voltage chain type active filter power cell, relates to power quality controlling device field.It is fixed to solve existing high voltage active filter institute electricity consumption shape, and withstand voltage is low; Laminated bus bar cost is high, the problem that fabrication cycle is long.The utility model comprises housing, two polarity free capacitors, copper bar, radiator, four IGBT, control board and four Absorption Capacitances; Two polarity free capacitors are in same level, radiator is had above one of them polarity free capacitor, radiator upper surface is provided with four IGBT, two polarity free capacitors are all connected with copper bar with four IGBT, the bottom of copper bar connects the link of two polarity free capacitors respectively, the top of copper bar connects the link of four IGBT respectively, the bottom of two polarity free capacitors is arranged on the lower surface of enclosure interior, and two rectangle minor faces of radiator and the side of two polarity free capacitors are separately fixed on two sidewalls of enclosure interior.The utility model is applicable to electrical energy devices field.
Description
Technical field
The utility model relates to power quality controlling device field.
Background technology
Along with electrical network is to the raising of the requirement of reactive power compensation and harmonic wave control, new requirement be it is also proposed to high voltage active filter, filtering and no-power compensation function can be realized, under the mode of overlapped in series, power cell output voltage values needs stable, and the voltage superposed out just can reach the object of harmonic carcellation.Stable magnitude of voltage needs DC bus-bar voltage to stablize, and electric capacity now used is alminium electrolytic condenser, and this electric capacity shape is fixed, and withstand voltage is low.Adopt electrochemical capacitor to need when connecting IGBT to use laminated bus bar to be connected with IGBT, laminated bus bar cost is high, and fabrication cycle is long.
Utility model content
The utility model is that the electric shape in order to solve existing high voltage active filter used is fixed, and withstand voltage is low; Adopt laminated bus bar cost high, the problem that fabrication cycle is long, thus provide a kind of high-voltage chain type active filter power cell.
High-voltage chain type active filter power cell, it comprises housing 1, two polarity free capacitors 2, copper bar 3, radiator 4, four IGBT5, control board 6 and four Absorption Capacitances 7;
Two polarity free capacitors 2 are in same level, radiator 4 is had above one of them polarity free capacitor 2, radiator 4 upper surface is provided with four IGBT5, two polarity free capacitors 2 are all connected with copper bar 3 with four IGBT5, the bottom of copper bar 3 connects the link of two polarity free capacitors 2 respectively, the top of copper bar 3 connects the link of four IGBT5 respectively, the bottom of two polarity free capacitors 2 is arranged on the lower surface of housing 1 inside, radiator 4 is provided with screw, four IGBT5 are threaded with the screw on radiator 4 by screw, two rectangle minor faces of radiator 4 and the side of two polarity free capacitors 2 are separately fixed on two sidewalls of housing 1 inside, radiator 4 is arranged on above a polarity free capacitor 2, control board 6 is arranged on the top of another polarity free capacitor 2, iron plate both sides bottom control board 6 are fixed on housing 1, an Absorption Capacitance 7 is provided with above each IGBT5,
The temperature signal input of the temperature signal output connection control plate 6 of radiator 4, the control signal output of control board 6 connects the control signal input of four IGBT5 simultaneously, the over-current signal input of the over-current signal output of four IGBT5 connection control plate 6 simultaneously, the signal end of each Absorption Capacitance 7 is connected on the signal end of corresponding IGBT5, four IGBT5 arrange from left to right, a left side link of first IGBT5 and a link of second IGBT5 in left side are linked together by copper bar 3, as an output of power cell, be connected with a pole of polarity free capacitor 2 after another link of another link and left side second IGBT5 of first IGBT5 in left side is linked together by copper bar 3, first IGBT5 in left side and the IGBT5 parallel connection of second, left side,
A right side link of first IGBT5 and a link of second IGBT5 in left side are linked together by copper bar 3, as another output of power cell, be connected with another pole of polarity free capacitor 2 after another link of another link and right side second IGBT5 of first IGBT5 in right side is linked together by copper bar 3; First IGBT5 in right side and the IGBT5 parallel connection of second, right side; Polarity free capacitor 2 is for setting up voltage to IGBT5.
The beneficial effects of the utility model are: the utility model adopts polarity free capacitor, can make various shape, can select custom-shaped according to concrete structure, are convenient to install, effectively can utilize space; Adopt polarity free capacitor that copper bar only need be used to connect, cost reduces 20% on year-on-year basis, and fabrication cycle reduces 15% on year-on-year basis.
Application on September 5th, 2013, publication number 203491699U, name is called " the main power cell of a kind of active filter " utility model patent, compared with this utility model patent, the application adopts the customizable thin-film capacitor of shape, in this power cell, electric capacity shape is rectangle, and thin-film capacitor volume is little, capacity is large, life-span is long, the good feature of stability, reduces power cell overall volume weight.The copper bar connecting electric capacity and IGBT presents two L structure, is convenient to install.
Accompanying drawing explanation
Fig. 1 is the cut-away view of high-voltage chain type active filter power cell;
Fig. 2 is the overall structure figure of high-voltage chain type active filter power cell;
Fig. 3 is the internal structure end view of high-voltage chain type active filter power cell;
Fig. 4 is the electrical principle block diagram of high-voltage chain type active filter power cell.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, high-voltage chain type active filter power cell described in present embodiment, it comprises housing 1, two polarity free capacitors 2, copper bar 3, radiator 4, four IGBT5, control board 6 and four Absorption Capacitances 7;
Two polarity free capacitors 2 are in same level, radiator 4 is had above one of them polarity free capacitor 2, radiator 4 upper surface is provided with four IGBT5, two polarity free capacitors 2 are all connected with copper bar 3 with four IGBT5, the bottom of copper bar 3 connects the link of two polarity free capacitors 2 respectively, the top of copper bar 3 connects the link of four IGBT5 respectively, the bottom of two polarity free capacitors 2 is arranged on the lower surface of housing 1 inside, radiator 4 is provided with screw, four IGBT5 are threaded with the screw on radiator 4 by screw, two rectangle minor faces of radiator 4 and the side of two polarity free capacitors 2 are separately fixed on two sidewalls of housing 1 inside, radiator 4 is arranged on above a polarity free capacitor 2, control board 6 is arranged on the top of another polarity free capacitor 2, iron plate both sides bottom control board 6 are fixed on housing 1, an Absorption Capacitance 7 is provided with above each IGBT5,
The temperature signal input of the temperature signal output connection control plate 6 of radiator 4, the control signal output of control board 6 connects the control signal input of four IGBT5 simultaneously, the over-current signal input of the over-current signal output of four IGBT5 connection control plate 6 simultaneously, the signal end of each Absorption Capacitance 7 is connected on the signal end of corresponding IGBT5, four IGBT5 arrange from left to right, a left side link of first IGBT5 and a link of second IGBT5 in left side are linked together by copper bar 3, as an output of power cell, be connected with a pole of polarity free capacitor 2 after another link of another link and left side second IGBT5 of first IGBT5 in left side is linked together by copper bar 3, first IGBT5 in left side and the IGBT5 parallel connection of second, left side,
A right side link of first IGBT5 and a link of second IGBT5 in left side are linked together by copper bar 3, as another output of power cell, be connected with another pole of polarity free capacitor 2 after another link of another link and right side second IGBT5 of first IGBT5 in right side is linked together by copper bar 3; First IGBT5 in right side and the IGBT5 parallel connection of second, right side; Polarity free capacitor 2 is for setting up voltage to IGBT5.
Unit controls plate for core devices, gathers busbar voltage, radiator temperature, IGBT over-current signal, IGBT control signal, the communication of power cell and master controller with EPM570 chip.Gather DC bus-bar voltage, when DC bus lower than or protect higher than set point.The order issued controller transmits control signal after decoding opening and shutoff of control IGBT.Gather power cell radiator temperature with thermistor, exceed set point and then protect.
Two IGBT form two brachium pontis of H-bridge circuit, and open in turn off process at IGBT, electric capacity sets up DC bus-bar voltage.
Embodiment two: present embodiment is further qualified the high-voltage chain type active filter power cell described in embodiment one, in present embodiment, it also comprises thermistor, and thermistor is arranged on the top of radiator 4, and thermistor is for measuring the temperature of radiator 4.
Claims (2)
1. high-voltage chain type active filter power cell, is characterized in that: it comprises housing (1), two polarity free capacitors (2), copper bar (3), radiator (4), four IGBT (5), control board (6) and four Absorption Capacitances (7);
Two polarity free capacitors (2) are in same level, there is radiator (4) one of them polarity free capacitor (2) top, radiator (4) upper surface is provided with four IGBT (5), two polarity free capacitors (2) are all connected with copper bar (3) with four IGBT (5), the bottom of copper bar (3) connects the link of two polarity free capacitors (2) respectively, the top of copper bar (3) connects the link of four IGBT (5) respectively, the bottom of two polarity free capacitors (2) is arranged on the inner lower surface of housing (1), (4) are provided with screw with radiator, four IGBT (5) are threaded with the screw on radiator (4) by screw, two rectangle minor faces of radiator (4) and the side of two polarity free capacitors (2) are separately fixed on two inner sidewalls of housing (1), radiator (4) is arranged on polarity free capacitor (2) top, control board (6) is arranged on the top of another polarity free capacitor (2), the iron plate both sides of control board (6) bottom are fixed on housing (1), each IGBT (5) top is provided with an Absorption Capacitance (7),
The temperature signal input of temperature signal output connection control plate (6) of radiator (4), the control signal output of control board (6) connects the control signal input of four IGBT (5) simultaneously, the over-current signal input of the over-current signal output of four IGBT (5) connection control plate (6) simultaneously, the signal end of each Absorption Capacitance (7) is connected on the signal end of corresponding IGBT (5), four IGBT (5) arrange from left to right, a link of a link and left side second IGBT (5) of first IGBT (5) in left side is linked together by copper bar (3), as an output of power cell, another link of another link and left side second IGBT (5) of first IGBT (5) in left side passes through to be connected with a pole of polarity free capacitor (2) after copper bar (3) links together, first IGBT (5) in left side and IGBT (5) parallel connection of second, left side,
A link of a link and left side second IGBT (5) of first IGBT (5) in right side is linked together by copper bar (3), as another output of power cell, another link of another link and right side second IGBT (5) of first IGBT (5) in right side passes through to be connected with another pole of polarity free capacitor (2) after copper bar (3) links together; First IGBT (5) in right side and IGBT (5) parallel connection of second, right side; Polarity free capacitor (2) sets up voltage for giving IGBT (5).
2. high-voltage chain type active filter power cell according to claim 1, it is characterized in that: it also comprises thermistor, thermistor is arranged on the top of radiator (4), and thermistor is for measuring the temperature of radiator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552354.2U CN204089196U (en) | 2014-09-24 | 2014-09-24 | High-voltage chain type active filter power cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552354.2U CN204089196U (en) | 2014-09-24 | 2014-09-24 | High-voltage chain type active filter power cell |
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| Publication Number | Publication Date |
|---|---|
| CN204089196U true CN204089196U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420552354.2U Expired - Fee Related CN204089196U (en) | 2014-09-24 | 2014-09-24 | High-voltage chain type active filter power cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583910A (en) * | 2017-01-06 | 2017-04-26 | 深圳市德知拓电源技术有限公司 | Ultrasonic welding power supply |
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2014
- 2014-09-24 CN CN201420552354.2U patent/CN204089196U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583910A (en) * | 2017-01-06 | 2017-04-26 | 深圳市德知拓电源技术有限公司 | Ultrasonic welding power supply |
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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: 20150107 Termination date: 20200924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |