CN205901305U - But active power filter device that real -time supervision load current changes - Google Patents
But active power filter device that real -time supervision load current changes Download PDFInfo
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- CN205901305U CN205901305U CN201620926964.3U CN201620926964U CN205901305U CN 205901305 U CN205901305 U CN 205901305U CN 201620926964 U CN201620926964 U CN 201620926964U CN 205901305 U CN205901305 U CN 205901305U
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- current transformer
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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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- Power Conversion In General (AREA)
Abstract
The utility model relates to a but active power filter device that real -time supervision load current changes, it install the electric wire netting and with between the load that the electric wire netting is connected, including control switch, fuse, contactor, a current transformer, reactor and the IGBT transverter of establishing ties in proper order, control switch with the electric wire netting is connected, it still including install the 2nd current transformer between electric wire netting and load, with control panel that the 2nd current transformer is connected group and with the electric source plate that control panel group is connected, the control panel component do not with a current transformer with the IGBT transverter is connected. Big or small circulation circuit has been formed like this to can realize the real -time supervision to the load current change.
Description
Technical field
This utility model be related to a kind of active filter and in particular to a kind of can real-time monitoring load current change have
Source filter.
Background technology
Active Power Filter-APF, is a kind of novel electric power electric device for dynamic harmonic wave, compensating reactive power, its energy
It is enough that to size and frequency, the harmonic wave simultaneously changing and the idle of change compensate.When sine voltage is carried in non-linear bearing
When in load, electric current can be affected, and becomes non-sinusoidal waveform, rather than sine-wave current produces pressure drop on electric network impedance, will make
Grid voltage waveform also receives interference and becomes non-sinusoidal waveform, Fourier transformation is carried out to the voltage signal being interfered, wherein
Frequency domain power frequency identical component is fundamental wave, and frequency is that the component of fundamental wave integral multiple is referred to as harmonic wave.Widely used non-linear
Load can produce substantial amounts of higher hamonic wave, the normal work of all kinds of electrical equipment of severe jamming.Additionally, impact, undulatory property are born
Carry and also can cause the power quality problems such as voltage pulsation, flickering and three-phase imbalance, lead to line voltage to produce distortion, harm system
The safe operation of system.
At present, the industrially developed country such as Japanese, American-European has extensively applied Active Power Filter-APF to solve harmonic pollution
Problem, compensation network reactive power, the raising quality of power supply.For example, Toshiba, Mitsubishi Electric, western room electrically etc. world-famous electrically
The product technology of company has tended to ripe.China starts late to the research of harmonic problem, just starts within 1989 to deliver research
The paper of active filter, after the nineties, some colleges and universities and scientific research institution just proceed by theoretical research, Development Prototype.As
The present, power quality problem is increasingly subject to pay attention to, and the theory and technology of active filter constantly improves, and engineer applied is experienced.State
The case of the existing numerous successful Application of active filter product of product board such as rich, Shenzhen Sheng Hong of Xi'an match etc., including communication, partly
The industries such as conductor, petrochemical industry, sewage disposal, automobile making, steel and iron manufacturing, and office block, hospital, theater, hotel, gymnasium
With places closely bound up with life such as theme parks.
Additionally, in recent years, under the background of energy crisis and environmental conservation, the research of sustainable new forms of energy and application are subject to
Greatly pay attention to.And the major drawbacks that sustainable energy generates electricity are exactly that electric energy output is unstable, voltage waveform is easily used
Electrical equipment disturbs.Active filter also can play huge effect in sustainable energy power domain.Due to active filter market
Have a extensive future, have a high potential, industry competition is increasingly fierce, but most enterprise technology level is relatively low, product homogeneity is tight
Weight.
Content of the invention
This utility model purpose be in order to overcome the deficiencies in the prior art and a kind of can the change of real-time monitoring load current
Active filter.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: one kind can the change of real-time monitoring load current
Active filter, it is arranged between electrical network and the load that is connected with described electrical network, including the control being sequentially connected in series
Switch, fuse, catalyst, the first current transformer, reactor and igbt inverter, described controlling switch and described electrical network
It is connected, it is also included being arranged on the second current transformer between electrical network and load, is connected with described second current transformer
The panel group connecing and the power panel being connected with described panel group, described panel group is mutual with described first electric current respectively
Sensor is connected with described igbt inverter.
Optimally, described igbt inverter is connected with the direct current capacitors for powering to it.
Further, it is also included one end and is connected between described catalyst and described first current transformer by wire
Current-limiting resistance.
Optimally, described panel group includes the signal plate being connected with described second current transformer and described signal
Panel and the driving plate being connected with described panel that plate is connected, described panel and described first current transformer
It is connected, described driving plate is connected with described igbt inverter.
Because technique scheme is used, this utility model compared with prior art has the advantage that this utility model
Can real-time monitoring load current change active filter, by by panel group respectively with the first current transformer and igbt
Inverter is connected, and make controlling switch, fuse, catalyst, the first current transformer, reactor, igbt inverter,
Panel group is sequentially connected with the second current transformer and is connected with electrical network, defines large and small cycles loop such that it is able to realize
Real-time monitoring to load current change.
Brief description
Accompanying drawing 1 for this utility model can real-time monitoring load current change active filter structural representation；
Wherein, 1, fuse；2nd, catalyst；3rd, current-limiting resistance；4th, the first current transformer；5th, reactor；6th, igbt changes
Stream device；7th, direct current capacitors；8th, power panel；9th, panel group；91st, signal plate；92nd, driving plate；93rd, panel；10th, the second electricity
Current transformer；11st, controlling switch.
Specific embodiment
Below in conjunction with accompanying drawing, this utility model preferred embodiment is described in detail:
As shown in Figure 1 can the change of real-time monitoring load current active filter, it is arranged on electrical network by wire
And so that it is in electrical network and the side of load in position between the load being connected with electrical network, mainly include fuse
1st, the first current transformer 4, reactor 5 and igbt inverter 6 etc..
Wherein, controlling switch 11, fuse 1, catalyst 2, the first current transformer 4, reactor 5 and igbt inverter 6
It is sequentially connected in series, controlling switch 11 is connected with electrical network and igbt inverter 6 is then away from electrical network.Second current transformer 10 includes installing
(on the circuit between being in electrical network here and loading), panel group 9 and the second current transformer between electrical network and load
10 are connected, and power panel 8 is connected with panel group 9, and panel group 9 is changed with the first current transformer 4 and igbt respectively
Stream device 6 is connected.Such first current transformer 4, reactor 5 and igbt inverter 6 and panel group 9 form little loop.
In the present embodiment, igbt inverter 6 is connected with the direct current capacitors 7 for powering to it.This active power filtering fills
Put and also include one end and connected to the current-limiting resistance 3 between catalyst 2 and the first current transformer 4 by wire, current-limiting resistance 3 with
Connect to catalyst 2 and form the relation of parallel connection.Signal plate 91 that panel group 9 includes being connected with the second current transformer 10,
The panel 93 being connected with signal plate 91 and the driving plate 92 being connected with panel 93, panel 93 is mutual with the first electric current
Sensor 4 is connected, and driving plate 92 is connected with igbt inverter 6.
Above-described embodiment is only that technology design of the present utility model and feature are described, its object is to allow and is familiar with technique
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this,
All equivalence changes made according to this utility model spirit or modification, all should cover protection domain of the present utility model it
Interior.
Claims (4)
1. a kind of can real-time monitoring load current change active filter, it is arranged on electrical network and is connected with described electrical network
Between the load connecing, including the controlling switch (11) being sequentially connected in series, fuse (1), catalyst (2), the first current transformer
(4), reactor (5) and igbt inverter (6), described controlling switch (11) be connected with described electrical network it is characterised in that: it
The second current transformer (10) also including being arranged between electrical network and load is connected with described second current transformer (10)
Panel group (9) and the power panel (8) being connected with described panel group (9), described panel group (9) respectively with described
First current transformer (4) is connected with described igbt inverter (6).
2. according to claim 1 can real-time monitoring load current change active filter it is characterised in that: described
Igbt inverter (6) is connected with the direct current capacitors (7) for powering to it.
3. according to claim 1 and 2 can real-time monitoring load current change active filter it is characterised in that:
It is also included one end and is connected to the current-limiting resistance between described catalyst (2) and described first current transformer (4) by wire
(3).
4. according to claim 1 can real-time monitoring load current change active filter it is characterised in that: described
Panel group (9) includes signal plate (91) and described signal plate (91) phase being connected with described second current transformer (10)
The panel (93) connecting and the driving plate (92) being connected with described panel (93), described panel (93) and described the
One current transformer (4) is connected, and described driving plate (92) is connected with described igbt inverter (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620926964.3U CN205901305U (en) | 2016-08-24 | 2016-08-24 | But active power filter device that real -time supervision load current changes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620926964.3U CN205901305U (en) | 2016-08-24 | 2016-08-24 | But active power filter device that real -time supervision load current changes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205901305U true CN205901305U (en) | 2017-01-18 |
Family
ID=57778194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620926964.3U Expired - Fee Related CN205901305U (en) | 2016-08-24 | 2016-08-24 | But active power filter device that real -time supervision load current changes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205901305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130023A (en) * | 2016-08-24 | 2016-11-16 | 苏州艾罗洛能源科技有限公司 | A kind of active filter that can monitor load current change in real time |
-
2016
- 2016-08-24 CN CN201620926964.3U patent/CN205901305U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130023A (en) * | 2016-08-24 | 2016-11-16 | 苏州艾罗洛能源科技有限公司 | A kind of active filter that can monitor load current change in real time |
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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: 20170118 Termination date: 20180824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |