CN201639299U - Main power device of active filter based on layer-type busbar - Google Patents
Main power device of active filter based on layer-type busbar Download PDFInfo
- Publication number
- CN201639299U CN201639299U CN200920235761XU CN200920235761U CN201639299U CN 201639299 U CN201639299 U CN 201639299U CN 200920235761X U CN200920235761X U CN 200920235761XU CN 200920235761 U CN200920235761 U CN 200920235761U CN 201639299 U CN201639299 U CN 201639299U
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- China
- Prior art keywords
- busbar
- active filter
- power device
- radiator
- printed board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- 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
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
The utility model discloses a main power device of an active filter based on layer-type busbar, which comprises a radiator, a plurality of insulated gate bipolar transistors, a sense-free film capacitor, a sense-free capacitor printed board, a positive busbar, an insulated polyester film, a negative busbar and a control circuit box. One sides of the plurality of insulated gate bipolar transistors are arranged on the radiator; one end of a copper column sequentially fastens the positive busbar, the insulated polyester film, and the negative busbar, and the other end of the copper column is connected with the other sides of the plurality of insulated gate bipolar transistors; the electrodes of the plurality of insulated gate bipolar transistors are connected to the positive busbar and the negative busbar through the copper column; the top of the other end of the copper column is provided with the sense-free capacitor printed board on which the sense-free film capacitor, the control circuit box, and a gate pole circuit that is connected to the insulated gate bipolar transistor 2 through a twisted pair are installed. The main power device simplifies the power circuit and increases the device performance.
Description
Technical field
The utility model relates to a kind of active filter master power device based on the laminar busbar, belongs to the technical field of active filter master power circuit.
Background technology
The power electronic technology of develop rapidly makes the application of various power electronic equipments in industry, communications and transportation and family increasingly extensive, and the harmonic wave that these nonlinear-loads bring harm is also serious day by day.Harmonic wave makes element generation harmonic loss, device efficiency and power factor reduction in the electrical network, even infringement power equipment such as capacitor etc.; Harmonic effects precision instrument and the communication system of closing on make it can't operate as normal.
Harmonic number and size change with the system loading situation in the electric power system, adopt traditional LC static filter to meet the demands, and the humorous idle dynamic compensation that carries out that involves variation that adopts active power filter all to change size and frequency, so the research of active filter and application more and more are subject to people's attention.
As a kind of power electronic equipment, the performance of active filter and its control algolithm and hardware configuration all have relation closely, and can whether the power circuit design rationally is related to the components and parts performance of device be brought into play, and can device operate as normal.Because active filter adopts high-speed switching devices IGBT, therefore, must guarantee that IGBT works under suitable environment.Need in addition to guarantee that DC bus-bar voltage is added on IGBT grid and the base stage reliably, and guarantee dc voltage stability and reliable insulation, drive signal is not disturbed, and reduces the assorted damage inductance in the circuit to greatest extent.Present domestic active filter production firm generally adopts copper bar to be connected IGBT with research institution or directly adopts IPM, but adopt IPM can strengthen installation cost, adopt copper bar to connect that then structure is numerous and diverse, add the difficulty that re-mounts and overhaul, and can strengthen the assorted damage inductance in the circuit.
The utility model content
The utility model purpose is to provide a kind of active filter master power device based on the laminar busbar at the defective that prior art exists, and adopts the power circuit of this device active filter to be simplified, and improves device performance.
The utility model adopts following technical scheme for achieving the above object:
The utility model is based on the active filter master power device of laminar busbar, it is characterized in that: comprise radiator, several IGBT, noninductive thin-film capacitor, noninductive electric capacity printed board, positive busbar, insulation polyester film, negative busbar and control circuit case, the side of several IGBT is arranged on the radiator, one end of copper post is successively with positive busbar, insulation polyester film, negative busbar is fastening, the other end of copper post is connected with the opposite side of several IGBT, the grid of several IGBT is connected to positive busbar by the copper post, the base stage of several IGBT is connected to negative busbar by the copper post, the top of the copper post other end is provided with noninductive electric capacity printed board, in the noninductive electric capacity printed board noninductive thin-film capacitor is set, control circuit case and the gate pole circuit that is connected to by twisted-pair feeder on the IGBT2.
The beneficial effects of the utility model are:
1, simplifies circuit structure, reduce the workload of installing and keeping in repair.
2, reduce the assorted damage inductance in the circuit, protected power model.
3, antijamming capability is strong, has reduced signal transmission distance, has reduced the interference of electromagnetic wave to drive signal.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Be elaborated below in conjunction with the technical scheme of accompanying drawing to utility model:
As Fig. 1, the utility model is by radiator 1, and several IGBT2 bear busbar 5, insulation polyester film 6, and positive busbar 7, noninductive electric capacity printed board 4, noninductive thin-film capacitor 3, control circuit case 8 constitutes.IGBT2 held against heat sink 1, employing is staggered, and makes full use of radiator area, and radiating effect is strengthened.Positive busbar 5, insulation polyester film 6, negative busbar 7 compresses by the copper post, links to each other with IGBT2 simultaneously.Grid is connected to positive busbar 5 by the copper post, and base stage is connected to negative busbar 7.Positive busbar 5 negative busbars 7 and insulation polyester film 6 constitute a capacity plate antenna, and its assorted damage inductance content is far smaller than the connected mode of copper bar.What install outside the busbar is noninductive electric capacity printed board 4, and the noninductive thin-film capacitor on it is used for absorbing the voltage spine that the IGBT switch produces.Outermost layer is a control circuit case 8.Driver module is connected to gate pole circuit on the IGBT2 by twisted-pair feeder in the circuit box, drives turning on and off of IGBT.
Can be clear that arranging of layered structure by Fig. 2.This compact conformation is attractive in appearance, forms electromagnetic shielding naturally, and the protection control circuit is interference-free.Reduce the drive signal transmission range, general transmission line length is less than 20cm.Improve radiator performance, guaranteed the working temperature of IGBT.
Claims (2)
1. active filter master power device based on the laminar busbar, it is characterized in that: comprise radiator (1), several IGBT (2), noninductive thin-film capacitor (3), noninductive electric capacity printed board (4), positive busbar (5), insulation polyester film (6), negative busbar (7) and control circuit case (8), the side of several IGBT (2) is arranged on the radiator (1), one end of copper post is successively with positive busbar (5), insulation polyester film (6), negative busbar (7) is fastening, the other end of copper post is connected with the opposite side of several IGBT (2), the grid of several IGBT (2) is connected to positive busbar (5) by the copper post, the base stage of several IGBT (2) is connected to negative busbar (7) by the copper post, the top of the copper post other end is provided with noninductive electric capacity printed board (4), noninductive thin-film capacitor (3) is set, control circuit case (8) and the gate pole circuit that is connected to by twisted-pair feeder on the IGBT2 in the noninductive electric capacity printed board (4).
2. the active filter master power device based on the laminar busbar according to claim 1, it is characterized in that: described several IGBT (2) are staggered on radiator (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920235761XU CN201639299U (en) | 2009-09-23 | 2009-09-23 | Main power device of active filter based on layer-type busbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920235761XU CN201639299U (en) | 2009-09-23 | 2009-09-23 | Main power device of active filter based on layer-type busbar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201639299U true CN201639299U (en) | 2010-11-17 |
Family
ID=43083805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920235761XU Expired - Fee Related CN201639299U (en) | 2009-09-23 | 2009-09-23 | Main power device of active filter based on layer-type busbar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201639299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594119A (en) * | 2012-01-30 | 2012-07-18 | 苏州腾冉电气设备有限公司 | Direct-current filter adopting busbar conductor |
-
2009
- 2009-09-23 CN CN200920235761XU patent/CN201639299U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594119A (en) * | 2012-01-30 | 2012-07-18 | 苏州腾冉电气设备有限公司 | Direct-current filter adopting busbar conductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20130923 |