CN204012706U - A kind of Active Power Filter-APF - Google Patents
A kind of Active Power Filter-APF Download PDFInfo
- Publication number
- CN204012706U CN204012706U CN201420156557.XU CN201420156557U CN204012706U CN 204012706 U CN204012706 U CN 204012706U CN 201420156557 U CN201420156557 U CN 201420156557U CN 204012706 U CN204012706 U CN 204012706U
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- CN
- China
- Prior art keywords
- circuit
- apf
- active power
- power filter
- acquisition process
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- 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]
Abstract
The utility model discloses a kind of Active Power Filter-APF, comprise that signal acquisition process device, response signal processor, signal sample circuit and inverter circuit form; Described signal sample circuit connects signal acquisition process device; Described signal acquisition process device connection response signal processor; Described response signal processor connects inverter circuit by inverse changing driving circuit; On described signal sample circuit and inverter circuit electrical connection power line.Active Power Filter-APF of the present utility model, input computing and control have respectively separate controller control, ensure the stability of filtering system.
Description
Technical field
The utility model includes active power filter, electric filtering equipment technical field.
Background technology
Because the use of the multiple electrical equipment of factor and family of electric power system self can affect the normal work of electric power system, electric power system is caused to certain impact and unbalanced by electrical characteristics; The harmonic wave that particularly the various harmonic sources in electric power system produce has also caused serious pollution to power system environment; Especially the increasingly extensive application of the nonlinear load such as power electronic equipment, the harmonic wave of its generation and idle electricity quality has been produced to very large impact; Traditional electrical network filter apparatus is passive filter, due to advantages such as cost are lower, simple in structure, reliable, easy to maintenance, be widely applied, it is the main method of current electricity supplying and using system harmonic wave inhibition and reactive power compensation, but it also has some shortcomings: but its volume is large, and filter effect and running situation are closely related, under specific circumstances passive filter may with system generation resonance; Therefore, only rely on passive filtering technology governance harmonic wave in the past can not meet the demands, must utilize this new technology of active power filtering to carry out filtering to electrical network; Some institution of higher learning of China, scientific research institutions and fewer companies have been carried out the research of Active Power Filter-APF in succession at present; But mostly also in emulation and low capacity experimental prototype conceptual phase, industrial only have several model machines to drop into trial run, and compensation effect is also unsatisfactory, and stability is also poor; Be difficult to be applied in actual electrical network.
Utility model content
(1) technical problem that will solve
In order to address the above problem, the utility model proposes a kind of Active Power Filter-APF, input computing and control have respectively separate controller control, ensure the stability of filtering system.
(2) technical scheme
Active Power Filter-APF of the present utility model, comprises that signal acquisition process device, response signal processor, signal sample circuit and inverter circuit form; Described signal sample circuit connects signal acquisition process device; Described signal acquisition process device connection response signal processor; Described response signal processor connects inverter circuit by inverse changing driving circuit; On described signal sample circuit and inverter circuit electrical connection power line.
Further, described signal sample circuit is made up of signal zero passage comparison circuit and current sampling circuit.
Further, described signal zero passage comparison circuit output electrical connection current sampling circuit; Described current sampling circuit is connected on signal acquisition process device by current-to-voltage converting circuit.
Further, described current-to-voltage converting circuit is made up of precision resistance.
Further, described inverter circuit is by three-phase full-controlled bridge drive circuit and three-phase full-controlled bridge the electric circuit constitute.
Further, the drive circuit of stating is made up of inverter and drive unit.
(3) beneficial effect
Compared with prior art, it has following beneficial effect to the utility model: Active Power Filter-APF of the present utility model, and input computing and control have respectively separate controller control, ensure the stability of filtering system; Improved the response time of filter simultaneously; Compensation effect is obvious; Work by two-shipper in addition, affected by electric network impedance little.
Brief description of the drawings
Fig. 1 is integrated circuit structured flowchart of the present utility model.
Fig. 2 is embodiment circuit structure block diagram of the present utility model.
Embodiment
Active Power Filter-APF principle of the present utility model is to utilize two-shipper to control, and one is carried out data acquisition and computing, and operation result is transferred to another controller, controller control and compensation circuit working.
As depicted in figs. 1 and 2, Active Power Filter-APF of the present utility model, comprises that signal acquisition process device, response signal processor, signal sample circuit and inverter circuit form; Described signal sample circuit connects signal acquisition process device; Described signal acquisition process device connection response signal processor; Described response signal processor connects inverter circuit by inverse changing driving circuit; On described signal sample circuit and inverter circuit electrical connection power line.
Described signal sample circuit is made up of signal zero passage comparison circuit and current sampling circuit; Described signal zero passage comparison circuit output electrical connection current sampling circuit; Described current sampling circuit is connected on signal acquisition process device by current-to-voltage converting circuit; Described current-to-voltage converting circuit is made up of precision resistance, is sampling voltage by the voltage at precision resistance two ends.Described inverter circuit is by three-phase full-controlled bridge drive circuit and three-phase full-controlled bridge the electric circuit constitute; The drive circuit of stating is made up of inverter and drive unit.
Active Power Filter-APF of the present utility model, input computing and control have respectively separate controller control, ensure the stability of filtering system; Improved the response time of filter simultaneously; Compensation effect is obvious; Work by two-shipper in addition, affected by electric network impedance little.
Embodiment recited above is described the preferred embodiment of the present invention, not design of the present utility model and scope is limited.Do not departing under the prerequisite of the utility model design concept; various modification and improvement that this area ordinary person makes the technical solution of the utility model; all should drop into protection range of the present utility model; the technology contents of the utility model request protection, has all been documented in claims.
Claims (6)
1. an Active Power Filter-APF, is characterized in that, comprises that signal acquisition process device, response signal processor, signal sample circuit and inverter circuit form; Described signal sample circuit connects signal acquisition process device; Described signal acquisition process device connection response signal processor; Described response signal processor connects inverter circuit by inverse changing driving circuit; On described signal sample circuit and inverter circuit electrical connection power line.
2. according to the Active Power Filter-APF described in claim 1, it is characterized in that, described signal sample circuit is made up of signal zero passage comparison circuit and current sampling circuit.
3. according to the Active Power Filter-APF described in claim 1 or 2, it is characterized in that described signal zero passage comparison circuit output electrical connection current sampling circuit; Described current sampling circuit is connected on signal acquisition process device by current-to-voltage converting circuit.
4. Active Power Filter-APF according to claim 3, is characterized in that, described current-to-voltage converting circuit is made up of precision resistance.
5. according to the Active Power Filter-APF described in claim 1, it is characterized in that, described inverter circuit is by three-phase full-controlled bridge drive circuit and three-phase full-controlled bridge the electric circuit constitute.
6. according to the Active Power Filter-APF described in claim 1, it is characterized in that, the drive circuit of stating is made up of inverter and drive unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156557.XU CN204012706U (en) | 2014-04-02 | 2014-04-02 | A kind of Active Power Filter-APF |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156557.XU CN204012706U (en) | 2014-04-02 | 2014-04-02 | A kind of Active Power Filter-APF |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204012706U true CN204012706U (en) | 2014-12-10 |
Family
ID=52052648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420156557.XU Expired - Fee Related CN204012706U (en) | 2014-04-02 | 2014-04-02 | A kind of Active Power Filter-APF |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204012706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490273A (en) * | 2015-12-04 | 2016-04-13 | 国家电网公司 | Power harmonic filter |
| CN105552912A (en) * | 2016-03-04 | 2016-05-04 | 安徽工程大学 | Active power filter |
-
2014
- 2014-04-02 CN CN201420156557.XU patent/CN204012706U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490273A (en) * | 2015-12-04 | 2016-04-13 | 国家电网公司 | Power harmonic filter |
| CN105552912A (en) * | 2016-03-04 | 2016-05-04 | 安徽工程大学 | Active power filter |
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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: 20141210 Termination date: 20150402 |
|
| EXPY | Termination of patent right or utility model |