CN205791526U - A kind of parallel connection type hybrid passive filtering compensation device - Google Patents
A kind of parallel connection type hybrid passive filtering compensation device Download PDFInfo
- Publication number
- CN205791526U CN205791526U CN201620474477.8U CN201620474477U CN205791526U CN 205791526 U CN205791526 U CN 205791526U CN 201620474477 U CN201620474477 U CN 201620474477U CN 205791526 U CN205791526 U CN 205791526U
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- Prior art keywords
- filter
- inducer
- electrically connected
- passive
- parallel connection
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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 parallel connection type hybrid passive filtering compensation device, including power bus, active filter, passive filter and harmonic load source, its active filter, passive filter and the parallel connection of harmonic load source access power bus, described active filter and passive filter are connected in series with current transformer and control switch, and current transformer and control switch series couple into power bus, one end of described passive filter is electrically connected with fling-cut switch, and the other end of fling-cut switch is electrically connected with power bus and active filter, this parallel connection type hybrid passive filtering compensation device, there is filter capacity and greatly and filter the feature that efficiency is high, effect filters load harmonic, resist system oscillation, improve the stability of electrical network, obtain the most energy-saving and cost-reducing and effect of power supply unit increase-volume simultaneously.
Description
Technical field
This utility model relates to passive filtering compensation technique field, is specially a kind of parallel connection type hybrid passive filtering compensation device.
Background technology
For the improvement of harmonic wave, passive filter is the product of comparative maturity, but it can only filter specific overtone order, and therefore load filtration result big for harmonic wave capacity, the operating mode such as scope wide, change is very fast is poor.Active Power Filter-APF is the novel electric power harmonic wave control special equipment using modern power electronics technology and Digital Signal Processing based on high-speed dsp device to make, integrate dynamic filter, dynamic current compensates, dynamic reactive power compensation, its excellent performance, filtration efficiency are high, filter range is wide, dynamic response is fast, volume is little, filter effect is not affected by system change, but due to its capacity limit and price reasons, cause the limitation of engineering popularization and application.
Utility model content
The purpose of this utility model is to provide a kind of parallel connection type hybrid passive filtering compensation device, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, this utility model following technical scheme of offer: a kind of parallel connection type hybrid passive filtering compensation device, including power bus, active filter, passive filter and harmonic load source, its active filter, passive filter and the parallel connection of harmonic load source access power bus, described active filter and passive filter are connected in series with current transformer and control switch, and current transformer and control switch series couple into power bus, one end of described passive filter is electrically connected with fling-cut switch, and the other end of fling-cut switch is electrically connected with power bus and active filter.
Preferably, described active filter includes inducer L3, one end of described inducer L3 is electrically connected with electric capacity C3, the other end of described electric capacity C3 is electrically connected with double winding inducer, and the other end of double winding inducer is electrically connected with circuit inverter, described circuit inverter forms closed-loop path with electric capacity C4.
Preferably, described passive filter includes electric capacity C1, one end of described electric capacity C1 is electrically connected with inducer L1, the other end of described inducer L1 is electrically connected with resistance R1, the other end of described resistance R1 connects inducer L2 and electric capacity C2 respectively, the other end of described inducer L2 is electrically connected with resistance R2, and inducer L2 and resistance R2 is connected in series, inducer L2 and resistance R2 access in parallel with electric capacity C2 resistance R1.
Preferably, described active filter and fling-cut switch be respectively connected to current transformer incoming end and control switch pick out end.
Compared with prior art, the beneficial effects of the utility model are: this parallel connection type hybrid passive filtering compensation device, there is filter capacity and greatly and filter the feature that efficiency is high, effect filters load harmonic, resist system oscillation, improve the stability of electrical network, obtain the most energy-saving and cost-reducing and effect of power supply unit increase-volume simultaneously.
Accompanying drawing explanation
Fig. 1 is this utility model circuit theory diagrams.
In figure: 1 power bus, 2 current transformers, 3 control switch, 4 active filters, 5 passive filters, 6 fling-cut switches, 7 harmonic load sources, 8 circuit inverter, 9 double winding inducers.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to Fig. 1, a kind of technical scheme of this utility model offer: a kind of parallel connection type hybrid passive filtering compensation device, including power bus 1, active filter 4, passive filter 5 and harmonic load source 7 active filter 4, passive filter 5 and harmonic load source 7 access in parallel power bus 1, described active filter 4 and passive filter 5 are connected in series with current transformer 2 and control switch 3, and current transformer 2 and control switch 3 series connection access power bus 1, one end of described passive filter 5 is electrically connected with fling-cut switch 6, and the other end of fling-cut switch 6 is electrically connected with power bus 1 and active filter 4.
nullWherein，Described active filter 4 includes inducer L3，One end of described inducer L3 is electrically connected with electric capacity C3，The other end of described electric capacity C3 is electrically connected with double winding inducer 9，And the other end of double winding inducer 9 is electrically connected with circuit inverter 8，Described circuit inverter 8 forms closed-loop path with electric capacity C4，Described passive filter 5 includes electric capacity C1，One end of described electric capacity C1 is electrically connected with inducer L1，The other end of described inducer L1 is electrically connected with resistance R1，The other end of described resistance R1 connects inducer L2 and electric capacity C2 respectively，The other end of described inducer L2 is electrically connected with resistance R2，And inducer L2 and resistance R2 is connected in series，Inducer L2 and resistance R2 access in parallel with electric capacity C2 resistance R1，Described active filter 4 and fling-cut switch 6 be respectively connected to current transformer 2 incoming end and control switch pick out end.
The harmonic load source 7 being connected on power bus 1 can produce substantial amounts of harmonic wave during work, the passive filter 5 harmonic current to principal character number of times, series arm is set, making this branch road is Low ESR to certain times harmonic, Low ESR is always flowed to because of electric current, therefore this characteristic harmonic current flows to series arm, systemic contamination is caused without flowing to system, Low ESR is always flowed to because of electric current, therefore this characteristic harmonic current flows to series arm, systemic contamination is caused without flowing to system, and the current transformer 2 in circuit and the electric current in active filter 4 real-time detection circuit and voltage loads numerical value, quickly harmonic current at point welfare, so that the electric current flowing to system is a preferable AC sine waveform, the main Absorption Characteristics low-order harmonic of passive filter 5, with completing compensation filter task.
Embodiment the most of the present utility model, for the ordinary skill in the art, being appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can carry out multiple change, revise, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a parallel connection type hybrid passive filtering compensation device, including power bus (1), active filter (4), passive filter (5) and harmonic load source (7), it is characterized in that: active filter (4), passive filter (5) and harmonic load source (7) access in parallel power bus (1), described active filter (4) and passive filter (5) are connected in series with current transformer (2) and control switch (3), and current transformer (2) and control switch (3) series connection access power bus (1), one end of described passive filter (5) is electrically connected with fling-cut switch (6), and the other end of fling-cut switch (6) is electrically connected with power bus (1) and active filter (4).
A kind of parallel connection type hybrid passive filtering compensation device the most according to claim 1, it is characterized in that: described active filter (4) includes inducer L3, one end of described inducer L3 is electrically connected with electric capacity C3, the other end of described electric capacity C3 is electrically connected with double winding inducer (9), and the other end of double winding inducer (9) is electrically connected with circuit inverter (8), described circuit inverter (8) forms closed-loop path with electric capacity C4.
A kind of parallel connection type hybrid passive filtering compensation device the most according to claim 1, it is characterized in that: described passive filter (5) includes electric capacity C1, one end of described electric capacity C1 is electrically connected with inducer L1, the other end of described inducer L1 is electrically connected with resistance R1, the other end of described resistance R1 connects inducer L2 and electric capacity C2 respectively, the other end of described inducer L2 is electrically connected with resistance R2, and inducer L2 and resistance R2 is connected in series, inducer L2 and resistance R2 access in parallel with electric capacity C2 resistance R1.
A kind of parallel connection type hybrid passive filtering compensation device the most according to claim 1, it is characterised in that: what described active filter (4) and fling-cut switch (6) were respectively connected to that the incoming end of current transformer (2) and controlling switchs picks out end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620474477.8U CN205791526U (en) | 2016-05-23 | 2016-05-23 | A kind of parallel connection type hybrid passive filtering compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620474477.8U CN205791526U (en) | 2016-05-23 | 2016-05-23 | A kind of parallel connection type hybrid passive filtering compensation device |
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| Publication Number | Publication Date |
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| CN205791526U true CN205791526U (en) | 2016-12-07 |
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| CN201620474477.8U Expired - Fee Related CN205791526U (en) | 2016-05-23 | 2016-05-23 | A kind of parallel connection type hybrid passive filtering compensation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL424114A1 (en) * | 2017-12-29 | 2019-07-01 | Politechnika Krakowska im. Tadeusza Kościuszki | Pulsed current feed system for the six-electrode arc furnace |
-
2016
- 2016-05-23 CN CN201620474477.8U patent/CN205791526U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL424114A1 (en) * | 2017-12-29 | 2019-07-01 | Politechnika Krakowska im. Tadeusza Kościuszki | Pulsed current feed system for the six-electrode arc furnace |
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| 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: 20161207 Termination date: 20170523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |