CN202978284U - Reactive compensating and filtering device - Google Patents
Reactive compensating and filtering device Download PDFInfo
- Publication number
- CN202978284U CN202978284U CN2012206848472U CN201220684847U CN202978284U CN 202978284 U CN202978284 U CN 202978284U CN 2012206848472 U CN2012206848472 U CN 2012206848472U CN 201220684847 U CN201220684847 U CN 201220684847U CN 202978284 U CN202978284 U CN 202978284U
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- Prior art keywords
- capacitor
- current transformer
- group
- capacitors
- ground
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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
- Y02E40/30—Reactive power compensation
-
- 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
Abstract
The utility model provides a reactive compensating and filtering device which comprises at least one group of capacitor set, reactors corresponding to the capacitor sets in number, switching switches corresponding to the capacitor sets in number, a current transformer, and a controller. A group of capacitor set, a reactor and a switching switch form a serially-connected branch, all of the serially-connected branches are parallelly connected between a system bus and the ground, the current transformer is serially connected between the system bus and the ground, and the controller is connected to the current transformer and a control end of each switching switch simultaneously. The reactive compensating and filtering device has the advantages that capacitors are divided into three groups according to capacity to be input sequentially and circularly in real time according to load conditions of different periods of time so as to realize dynamic compensation; and when load is insufficient, the capacitors are withdrawn sequentially and circularly, so that each capacitor can obtain sufficient discharging time to discharge residual electric charge for the convenience of next switching, and the service lives of the capacitors are prolonged.
Description
Technical field
The utility model relates to a kind of power electric component, specifically a kind of reactive power compensation and filter.
Background technology
In electric power system, most of load equipment is when consuming active power, also produce a large amount of reactive powers and harmonic wave, these reactive powers do not have by the real consumption of load, but exchange with the form of Electric and magnetic fields, increase the loss of transformer and transmission line, reactive power compensation and filter must be installed in distribution system, improve power factor, suppress harmonic wave, reduce electric energy loss.Traditional reactive power compensation and filter are all to use the capacitor series reactor, and capacitor provides capacitive reactive power to electrical network, and reactor suppresses harmonic wave.But find in use that capacitor often damages, and affects power grid security.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of reactive power compensation and filter of new structure, this reactive power compensation and filter are designed with special-purpose trace motion mechanism, and this mechanism can realize automation and the intellectuality of lockset opening and closing action well.
the utility model solves the problems of the technologies described above by the following technical solutions: a kind of reactive power compensation and filter, comprise at least one group capacitor group, the reactor of corresponding capacitor group quantity, the fling-cut switch of corresponding capacitor group quantity, current transformer, and controller, one group capacitor group, a reactor, a fling-cut switch forms the branch road of a series connection, be connected to after the branch circuit parallel connection of all series connection between system busbar and ground, described current transformer is connected between system busbar and ground, described controller is connected to the control end of current transformer and each fling-cut switch simultaneously.
Optimize, described capacitor group has three groups.
The utility model has the advantage of: change the project organization of existing reactive power compensation and filter, according to capacity, capacitor is divided into more than 3 groups, circulate successively in real time according to the different time sections loading condition and drop into, accomplish dynamic compensation.When load is discontented, withdraws from circulation successively and withdraw from.Make like this each capacitor can obtain sufficient discharge time, residual charge is released, be convenient to switching next time, improve capacitor useful life.
Description of drawings
Fig. 1 is the circuit diagram of the utility model reactive power compensation and filter.
Embodiment
Below in conjunction with the accompanying drawing comparative examples, the utility model is described in detail.
See also shown in Figure 1ly, the utility model reactive power compensation and filter comprise the reactor of at least one group capacitor group, corresponding capacitor group quantity, the fling-cut switch of corresponding capacitor group quantity, current transformer, and controller.
Capacitor group in Fig. 1 is expressed as C1, C2, C3 ... Cn, reactor are expressed as G1, G2, G3 ... Gn, fling-cut switch are expressed as KM1, KM2, KM3 ... KM, current transformer are expressed as Lha, LHb, LHc.
One group capacitor group, a reactor, a fling-cut switch form the branch road of a series connection, be connected to after the branch circuit parallel connection of all series connection between system busbar and ground, described current transformer is connected between system busbar and ground, and described controller is connected to the control end of current transformer and each fling-cut switch simultaneously.
Controller circulates successively in real time according to the different time sections loading condition and drops into, and accomplishes dynamic compensation.When load is discontented, withdraws from circulation successively and withdraw from.Make like this each capacitor can obtain sufficient discharge time, residual charge is released, be convenient to switching next time, improve capacitor useful life.
The above is only for the preferred embodiment of the invention; not in order to limit the invention; all in the invention spirit and principle within do any modification, be equal to and replace and improvement etc., within all should being included in the protection range of the invention.
Claims (2)
1. a reactive power compensation and filter, it is characterized in that: comprise the reactor of at least one group capacitor group, corresponding capacitor group quantity, the fling-cut switch of corresponding capacitor group quantity, current transformer, and controller, one group capacitor group, a reactor, a fling-cut switch form the branch road of a series connection, be connected to after the branch circuit parallel connection of all series connection between system busbar and ground, described current transformer is connected between system busbar and ground, and described controller is connected to the control end of current transformer and each fling-cut switch simultaneously.
2. a kind of reactive power compensation as claimed in claim 1 and filter, it is characterized in that: described capacitor group has three groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206848472U CN202978284U (en) | 2012-12-12 | 2012-12-12 | Reactive compensating and filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206848472U CN202978284U (en) | 2012-12-12 | 2012-12-12 | Reactive compensating and filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978284U true CN202978284U (en) | 2013-06-05 |
Family
ID=48519311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206848472U Expired - Fee Related CN202978284U (en) | 2012-12-12 | 2012-12-12 | Reactive compensating and filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978284U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656060A (en) * | 2016-03-29 | 2016-06-08 | 国网浙江奉化市供电公司 | Transformer and regional power grid system |
| CN109193694A (en) * | 2018-10-25 | 2019-01-11 | 许昌学院 | A kind of low-pressure reactive compensation system |
-
2012
- 2012-12-12 CN CN2012206848472U patent/CN202978284U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656060A (en) * | 2016-03-29 | 2016-06-08 | 国网浙江奉化市供电公司 | Transformer and regional power grid system |
| CN109193694A (en) * | 2018-10-25 | 2019-01-11 | 许昌学院 | A kind of low-pressure reactive compensation system |
| CN109193694B (en) * | 2018-10-25 | 2021-10-29 | 许昌学院 | Low-voltage reactive power compensation system |
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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: 20130605 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |