CN204179665U - A kind of Active Power Filter-APF - Google Patents
A kind of Active Power Filter-APF Download PDFInfo
- Publication number
- CN204179665U CN204179665U CN201420119182.XU CN201420119182U CN204179665U CN 204179665 U CN204179665 U CN 204179665U CN 201420119182 U CN201420119182 U CN 201420119182U CN 204179665 U CN204179665 U CN 204179665U
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- CN
- China
- Prior art keywords
- circuit
- generating
- active power
- power filter
- apf
- 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
- Y02E40/20—Active power filtering [APF]
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model provides a kind of Active Power Filter-APF, comprise cabinet, ordering calculation circuit, offset current circuit for generating, current follow-up control circuit and drive circuit, ordering calculation circuit, offset current circuit for generating are arranged in cabinet, offset current circuit for generating and instruction computing circuit is electrically connected, ordering calculation circuit is electrically connected with current follow-up control circuit, current follow-up control circuit is electrically connected with drive circuit, drive circuit access offset current circuit for generating, offset current circuit for generating and instruction computing circuit is incoming transport electrical network respectively.This Active Power Filter-APF improves power factor, can also idle in bucking-out system, simultaneously can the three-phase imbalance of regulating system, to single harmonic source independent compensation, also can, to multiple harmonic source Concetrated control, can be able to realize administering appointment subharmonic.
Description
Technical field
The utility model has related to that Active Power Filter-APF one week.
Background technology
Along with the progress of modern science and technology, increasing power electronic equipment is applied in government, enterprise, while facilitating electricity usage, also brings a lot of pollution to electrical network, in electric power system, the harmonic wave that various harmonic source produces also causes serious pollution to power system environment.Especially the increasingly extensive application of the nonlinear load such as power electronic equipment, its harmonic wave produced and idlely create very large impact to electricity quality, also just creates this concept of the quality of power supply.
Utility model content
For above-mentioned defect and the problem of prior art, the utility model object there is provided raising power factor, can also idle in bucking-out system, simultaneously can the three-phase imbalance of regulating system, can to single harmonic source independent compensation, also to multiple harmonic source Concetrated control, the Active Power Filter-APF to specifying subharmonic to administer can be realized.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of Active Power Filter-APF, comprise cabinet, ordering calculation circuit, offset current circuit for generating, current follow-up control circuit and drive circuit, ordering calculation circuit, offset current circuit for generating are arranged in cabinet, offset current circuit for generating and instruction computing circuit is electrically connected, ordering calculation circuit is electrically connected with current follow-up control circuit, current follow-up control circuit is electrically connected with drive circuit, drive circuit access offset current circuit for generating, offset current circuit for generating and instruction computing circuit is incoming transport electrical network respectively.
Further, ordering calculation circuit also comprises high speed digital signal processor.
Further, Active Power Filter-APF is also provided with instrument transformer.
Further, cabinet is also provided with touch display screen.
Further, touch display screen is of a size of 7 inches.
Further, cabinet is provided with air inlet and air outlet.
The beneficial effects of the utility model are, that adopt due to power cell is the IGBT of 20KHZ, and perfect harmonic carcellation rapidly, current transforming unit modularization relates to, and combines various, and installation and maintenance are very convenient.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of compressed natural gas injector of the present utility model.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, be clearly and completely described the technical solution of the utility model, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, 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 utility model protection.
As shown in Figure 1, a kind of Active Power Filter-APF disclosed in the utility model, comprise cabinet, ordering calculation circuit, offset current circuit for generating, current follow-up control circuit and drive circuit, ordering calculation circuit, offset current circuit for generating is arranged in cabinet, offset current circuit for generating and instruction computing circuit is electrically connected, ordering calculation circuit is electrically connected with current follow-up control circuit, current follow-up control circuit is electrically connected with drive circuit, drive circuit access offset current circuit for generating, offset current circuit for generating and instruction computing circuit is incoming transport electrical network respectively.
Preferred technical scheme, ordering calculation circuit also comprises high speed digital signal processor, Active Power Filter-APF is also provided with instrument transformer, realize gathering current signal by instrument transformer, after being converted into digital signal, the high speed digital signal processor of move instruction computing circuit processes, current first harmonics is separated with harmonic wave by this unit, and harmonic components and the issued offset current of filter are compared, obtain difference to carry out conversion and draw instruction current, ordering about offset current circuit for generating by current tracking circuit and drive circuit generates equal with harmonic current, opposite polarity offset current injects electrical network, thus realize dynamic to mains by harmonics, fast, administer thoroughly.
Preferred technical scheme, cabinet is also provided with touch display screen, touch display screen is of a size of 7 inches, can optimum configurations by touch-screen, the fundamental current of capacitive or perception is sent by internal compensation current circuit for generating, realize dynamic passive compensation, the desired value of power factor can be set by the touch screen operation panel of filter.
Preferred technical scheme, cabinet is provided with air inlet and air outlet, and the heat that filter produces is dispelled the heat by air outlet.
The above; be only embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should described be as the criterion with the protection range of claim.
Claims (6)
1. an Active Power Filter-APF, it is characterized in that, comprise cabinet, ordering calculation circuit, offset current circuit for generating, current follow-up control circuit and drive circuit, ordering calculation circuit, offset current circuit for generating are arranged in cabinet, offset current circuit for generating and instruction computing circuit is electrically connected, ordering calculation circuit is electrically connected with current follow-up control circuit, current follow-up control circuit is electrically connected with drive circuit, drive circuit access offset current circuit for generating, offset current circuit for generating and instruction computing circuit is incoming transport electrical network respectively.
2. Active Power Filter-APF according to claim 1, is characterized in that, ordering calculation circuit also comprises high speed digital signal processor.
3. Active Power Filter-APF according to claim 1, is characterized in that, Active Power Filter-APF is also provided with instrument transformer.
4. Active Power Filter-APF according to claim 1, is characterized in that, cabinet is also provided with touch display screen.
5. Active Power Filter-APF according to claim 4, is characterized in that, touch display screen is of a size of 7 inches.
6. the Active Power Filter-APF according to claim 1 or 4, is characterized in that, cabinet is provided with air inlet and air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119182.XU CN204179665U (en) | 2014-03-14 | 2014-03-14 | A kind of Active Power Filter-APF |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119182.XU CN204179665U (en) | 2014-03-14 | 2014-03-14 | A kind of Active Power Filter-APF |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204179665U true CN204179665U (en) | 2015-02-25 |
Family
ID=52568440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420119182.XU Expired - Fee Related CN204179665U (en) | 2014-03-14 | 2014-03-14 | A kind of Active Power Filter-APF |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204179665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635491A (en) * | 2019-09-26 | 2019-12-31 | 广东电网有限责任公司 | Active power filtering system and control method thereof and related equipment |
-
2014
- 2014-03-14 CN CN201420119182.XU patent/CN204179665U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635491A (en) * | 2019-09-26 | 2019-12-31 | 广东电网有限责任公司 | Active power filtering system and control method thereof and related equipment |
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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: 20150225 Termination date: 20200314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| DD01 | Delivery of document by public notice |
Addressee: Lu Jiankang Document name: Notice of termination of patent right |
|
| DD01 | Delivery of document by public notice |