CN204190388U - With the power cabinet of active power filtering function - Google Patents
With the power cabinet of active power filtering function Download PDFInfo
- Publication number
- CN204190388U CN204190388U CN201420618074.7U CN201420618074U CN204190388U CN 204190388 U CN204190388 U CN 204190388U CN 201420618074 U CN201420618074 U CN 201420618074U CN 204190388 U CN204190388 U CN 204190388U
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- Prior art keywords
- cabinet
- power
- apf
- filter
- active power
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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
- Y02E40/20—Active power filtering [APF]
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Abstract
The utility model discloses a kind of power cabinet with active power filtering function, comprise cabinet, the power cabinet circuit of cabinet is connected on electrical network main line, is provided with power cabinet main circuit breaker, current transformer, power cabinet divide circuit breaker and transformer in cabinet; Active power filtering APF circuit is also provided with in cabinet, active power filtering APF circuit and power cabinet circuit in parallel are on electrical network main line, be provided with Active Power Filter-APF assembly in active power filtering APF circuit, Active Power Filter-APF assembly is connected with source filter switch by reactor.Active filter is integrated in power cabinet by the utility model, can the high order harmonic component of filtering appts, reduces harmonic loss, optimizes waveform, can also carry out two-wayly carrying out reactive power compensation.
Description
Technical field
The utility model relates to technical field of electric equipment, is specifically related to a kind of power cabinet with active power filtering function.
Background technology
Power cabinet with active power filtering function is arranged on the distribution transformer secondary side in city net, rural power grids.Distribution power cabinet be provided with isolating switch, circuit breaker, etc. form outdoor electricity distribution and compensation equipment, there is multiple scheme of electric power flexibly.But, along with expanding economy, increasing nonlinear load uses in a large number, the such as extensive use of high-power silicon controlled rectifier (thyristor, silicon valve), a large amount of nonlinear-load increases, the particularly progress of power electronic technology, power-saving technology and control technology, is filled with a large amount of harmonic currents toward electrical network, general enterprise has all exceeded the national standard of 5% harmonic current, most enterprise even harmonic current amount more than 30%; Electric network impedance can produce the voltage of distortion under the effect of harmonic current.In electric power system, because a large amount of harmonic wave occurs, can produce the operation of electrical network and have a strong impact on and bring significant damage.
Active Power Filter-APF is the novel electric power electric harmonic filter based on voltage source inverter, by the current waveform produced by nonlinear load in the real-time detection of grid of outside instrument transformer CT, harmonic is wherein isolated by internal detection circuitry, produce the offset current contrary with the harmonic wave equal and opposite in direction phase place of system by IGBT power inverter, realize the function of filtering harmonic wave.Exporting offset current is according to the harmonic content dynamic change of system, therefore there will not be the problem of overcompensation.Active Power Filter-APF has internal overload defencive function, and when the harmonic content of system is greater than filter capacity, Active Power Filter-APF can export in 100% rated capacity in volitional check, and filter overload can not occur.Can optimum configurations be passed through, make Active Power Filter-APF carry out dynamic passive compensation while filtering harmonic wave.Active Power Filter-APF is according to the reactive power of detection system, and produced the fundamental current of capacitive or perception by IGBT power inverter, realize dynamic passive compensation, the desired value of reactive power compensation can be set by SW-APF guidance panel.The reactive power compensation electric current of Active Power Filter-APF, according to the dynamic change of System Reactive Power amount demand, there will not be overcompensation, and flexible reactive power compensation can not produce impact of shoving.Compare with the passive filtering of LC type, be active compensation arrangement due to what adopt, dynamic property is good, and fail safe is high, strong adaptability simultaneously.
But existing Active Power Filter-APF is not high due to components and parts volume and integrated level, often takies larger space, is not suitable for and adapts to low-voltage distribution equipment standardization, miniaturized requirement.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, thering is provided a kind of is integrated in power cabinet by active filter, and the high order harmonic component of energy filtering appts, reduces harmonic loss, optimize waveform, the two-way power cabinet carrying out the band active power filtering function of reactive power compensation can also be carried out.
With a power cabinet for active power filtering function, comprise cabinet, the power cabinet circuit of cabinet is connected on electrical network main line, is provided with power cabinet main circuit breaker, current transformer, power cabinet divide circuit breaker and transformer in cabinet; Active power filtering APF circuit is also provided with in cabinet, active power filtering APF circuit and power cabinet circuit in parallel are on electrical network main line, be provided with Active Power Filter-APF assembly in active power filtering APF circuit, Active Power Filter-APF assembly is connected with source filter switch by reactor.
Further improvement as technique scheme:
In the middle part of described cabinet along short transverse every being provided with mounting rail, mounting rail comprises respectively towards positive mounting rail face and the anti-mounting rail face of the left and right madial wall of cabinet, positive mounting rail face is provided with active filter switch, reactor, Active Power Filter-APF assembly from top to bottom successively, cabinet top inwall above active filter switch is provided with axial flow blower, be provided with filter blower fan below Active Power Filter-APF assembly, transformer is arranged on inwall at the bottom of the cabinet below filter blower fan; Anti-mounting rail face is provided with from top to bottom successively power cabinet main circuit breaker, current transformer, power cabinet divide circuit breaker, power cabinet main circuit breaker, current transformer, power cabinet are divided between circuit breaker and are connected by copper bar.
Active filter is integrated in power cabinet by the utility model, and the high order harmonic component of energy filtering appts, reduces harmonic loss, optimizes waveform, two-wayly can also carry out reactive power compensation; Employing is installed in parallel mode, and install simple, volume is little; Reduce line loss, the transformer that harmonic carcellation causes, with the motor feels hot, realizes system significantly energy-conservation; The filter effect of Active Power Filter-APF is not by system impedance variable effect, and energy self-restration system resonance.
Its mounting structure has the advantages such as modularization, volume be little, handsome in appearance, safe and reliable to operation, easy to maintenance technically, replace traditional dynamic power distribution cabinet, there is floor space economically little, conveniently moving, go deep into that load center, construction period are short, the advantage such as cut the waste.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is electrical schematic diagram of the present utility model.
Embodiment
See Fig. 1 and Fig. 2, a kind of power cabinet with active power filtering function that the utility model provides, comprise cabinet 1, the power cabinet circuit of cabinet 1 is connected on electrical network main line, power cabinet main circuit breaker 2 is provided with in cabinet 1, current transformer 3, power cabinet divides circuit breaker 4 and transformer 5, in order to solve the technical problem described in background technology, the technical solution of the utility model is, active power filtering APF circuit 6 is also provided with in cabinet 1, active power filtering APF circuit 6 and power cabinet circuit in parallel are on electrical network main line, (Active Power Filter-APF assembly is prior art to be provided with Active Power Filter-APF assembly 61 in active power filtering APF circuit 6, therefore do not repeat them here), Active Power Filter-APF assembly 61 is connected with source filter switch 63 by reactor 62.
As the further improvement to technique scheme,
In the middle part of cabinet 1 along short transverse every being provided with mounting rail 11, mounting rail comprises left towards cabinet 1 respectively, the positive mounting rail face of right inside sidewall and anti-mounting rail face, positive mounting rail face is provided with active filter switch 63 from top to bottom successively, reactor 62, Active Power Filter-APF assembly 61, cabinet 1 above active filter switch 63 pushes up inwall and is provided with axial flow blower 7, filter blower fan 8 is provided with below Active Power Filter-APF assembly 61, transformer 5 is arranged on cabinet 1 end inwall below filter blower fan 8, object is, guarantee the radiating effect to there being heater members such as Active Power Filter-APF assembly 61 grade in cabinet 1, anti-mounting rail face is provided with from top to bottom successively power cabinet main circuit breaker 2, current transformer 3, power cabinet divide circuit breaker 4, power cabinet main circuit breaker 2, current transformer 3, power cabinet are divided between circuit breaker 4 and are connected by copper bar 9.
The object of said structure design is, avoided Active Power Filter-APF assembly 61 and power cabinet components and parts to produce and disturbed, and above-mentioned parts also entirety can carry out removing and installing replacing, comparatively convenient and swift.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (2)
1. the power cabinet with active power filtering function, comprise cabinet, the power cabinet circuit of cabinet is connected on electrical network main line, be provided with power cabinet main circuit breaker in cabinet, current transformer, power cabinet divide circuit breaker and transformer, it is characterized in that: in described cabinet, be also provided with active power filtering APF circuit, active power filtering APF circuit and power cabinet circuit in parallel are on electrical network main line, be provided with Active Power Filter-APF assembly in active power filtering APF circuit, Active Power Filter-APF assembly is connected with source filter switch by reactor.
2. the power cabinet of band active power filtering function according to claim 1, it is characterized in that: in the middle part of described cabinet along short transverse every being provided with mounting rail, mounting rail comprises left towards cabinet respectively, the positive mounting rail face of right inside sidewall and anti-mounting rail face, positive mounting rail face is provided with active filter switch from top to bottom successively, reactor, Active Power Filter-APF assembly, cabinet top inwall above active filter switch is provided with axial flow blower, filter blower fan is provided with below Active Power Filter-APF assembly, transformer is arranged on inwall at the bottom of the cabinet below filter blower fan, anti-mounting rail face is provided with from top to bottom successively power cabinet main circuit breaker, current transformer, power cabinet divide circuit breaker, power cabinet main circuit breaker, current transformer, power cabinet are divided between circuit breaker and are connected by copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420618074.7U CN204190388U (en) | 2014-10-23 | 2014-10-23 | With the power cabinet of active power filtering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420618074.7U CN204190388U (en) | 2014-10-23 | 2014-10-23 | With the power cabinet of active power filtering function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190388U true CN204190388U (en) | 2015-03-04 |
Family
ID=52622359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420618074.7U Expired - Fee Related CN204190388U (en) | 2014-10-23 | 2014-10-23 | With the power cabinet of active power filtering function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190388U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967124A (en) * | 2015-07-01 | 2015-10-07 | 南通阿斯通电器制造有限公司 | APF active power filter |
| CN112398311A (en) * | 2020-11-10 | 2021-02-23 | 西安许继电力电子技术有限公司 | Multi-module series-parallel power converter device |
-
2014
- 2014-10-23 CN CN201420618074.7U patent/CN204190388U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967124A (en) * | 2015-07-01 | 2015-10-07 | 南通阿斯通电器制造有限公司 | APF active power filter |
| CN112398311A (en) * | 2020-11-10 | 2021-02-23 | 西安许继电力电子技术有限公司 | Multi-module series-parallel power converter device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 234000 hi tech Industrial Development Zone, Anhui, Suzhou Patentee after: Anhui Sewoll Electrical Technology Co., Ltd. Address before: 234000 hi tech Industrial Development Zone, Anhui, Suzhou Patentee before: ANHUI SAIWO ELECTRICAL TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20171023 |