CN202206144U - Reactive power compensation system - Google Patents
Reactive power compensation system Download PDFInfo
- Publication number
- CN202206144U CN202206144U CN 201120334064 CN201120334064U CN202206144U CN 202206144 U CN202206144 U CN 202206144U CN 201120334064 CN201120334064 CN 201120334064 CN 201120334064 U CN201120334064 U CN 201120334064U CN 202206144 U CN202206144 U CN 202206144U
- Authority
- CN
- China
- Prior art keywords
- reactive power
- power compensation
- reactive
- compensation system
- grid
- Prior art date
- 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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Classifications
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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
Abstract
The utility model discloses a reactive power compensation system, which is connected with a grid side and an inductive load, and is characterized by comprising an LCL (Lower Control Limit) filter circuit, an IGBT (Insulated Gate Bipolar Translator) bridge and a capacitor connected with the grid side in sequence, a thyristor and a first reactive power compensation series inductor capacitor bank connected with the grid in sequence, as well as a contactor and a second reactive power compensation series inductor capacitor bank connected with grid in sequence. According to the settings of a user power factor, the reactive power compensation system can continuously regulate reactive power parameters, and quickly and highly accurately carry out reactive power compensation to achieve a power factor set by the system; besides, the reactive power compensator has the advantages of simple structure and easiness in realization.
Description
Technical field
The utility model relates to the reactive power compensation field, relates in particular to a kind of reactive compensation system.
Background technology
The standard configuration reactive-load compensation equipment of present each transformer station; Be the capacitor group switching mode that power factor controller adds contactor or capacitor control; And the maximum deficiency of this kind equipment is that frequent switching causes life of capacitors not long, and can not accomplish continuous reactive power compensation, simultaneously because on-the-spot harmonic wave reason; The capacitor group also is easy to damage, and will be a problem that the practical study meaning is relatively arranged so research and develop a kind of novel intelligent reactive power compensation device.
Summary of the invention
The purpose of the utility model is to overcome the defective of prior art and a kind of reactive compensation system is provided; It can be according to the setting of user power factor; Regulate idle parameter continuously, quick, high accuracy is carried out reactive power compensation, the power factor that the system that reaches is set.
The technical scheme that realizes above-mentioned purpose is:
A kind of reactive compensation system; An external grid side and an inductive load; Wherein, The thyristor that said system comprises the LCL filter circuit (passive filter circuit), an IGBT (igbt) bridge and the electric capacity that are connected successively with said grid side, be connected with said grid side successively and the first reactive power compensation serial inductor capacitance device group, with a contactor and the second reactive power compensation serial inductor capacitance device group that said grid side is connected successively, the two ends of said electric capacity all connect said IGBT bridge.
Above-mentioned reactive compensation system, wherein, said LCL filter circuit comprises three capacitors and two groups of reactors, wherein:
Said two groups of reactors interconnect, and every group of reactor comprises three reactors arranged side by side;
Said three capacitors end separately connects three reactors arranged side by side in said every group of reactor respectively, and the other end separately interconnects.
Above-mentioned reactive compensation system, wherein, the first reactive power compensation serial inductor capacitance device group that is connected with said thyristor comprises the inductance capacitor of some series connection;
The second reactive power compensation serial inductor capacitance device group that is connected with said contactor comprises the inductance capacitor of some series connection.
The beneficial effect of the utility model is: the utility model can be regulated idle parameter continuously according to the setting of user power factor, and quick, high accuracy is carried out reactive power compensation, the power factor that the system that reaches is set.Simultaneously, it also has advantage simple in structure, that be easy to realize.
Description of drawings
Fig. 1 is the system construction drawing of the reactive compensation system of the utility model.
Embodiment
To combine accompanying drawing that the utility model is described further below.
See also Fig. 1; A kind of reactive compensation system 3 of the utility model; Outside electric power network side 1 and inductive load 2; The thyristor 33 that this reactive compensation system 3 comprises the LCL filter circuit 31, IGBT bridge 32 and the capacitor C that are connected successively with grid side 1, be connected with grid side 1 successively and the first reactive power compensation serial inductor capacitance device group 34, with the contactor 35 and the second reactive power compensation serial inductor capacitance device group 36 that grid side 1 is connected successively, wherein: the two ends of capacitor C all connect IGBT bridge 32.
LCL filter circuit 31 comprises three capacitor (not shown) and two groups of reactor (not shown), wherein:
Two groups of reactor (not shown) interconnect, and every group of reactor (not shown) comprises three reactors arranged side by side;
Three capacitor (not shown) end separately connects three reactors arranged side by side in every group of reactor (not shown) respectively, and the other end separately interconnects.
IGBT bridge 32 is made up of six igbts.
The first reactive power compensation serial inductor capacitance device group 34 that is connected with thyristor 33 comprises the inductance capacitor of some series connection;
The second reactive power compensation serial inductor capacitance device group 36 that is connected with contactor 35 comprises the inductance capacitor of some series connection.
In sum, a kind of reactive compensation system 3 of the utility model can be regulated idle parameter continuously according to the setting of user power factor, fast, high accuracy carries out reactive power compensation, reaches the set power factor of reactive compensation system 3.Each parts of the utility model are all selected existing and commonly used product for use, purchase conveniently, be easy to realize.
Above embodiment only supplies to explain the usefulness of the utility model; But not to the restriction of the utility model; The technical staff in relevant technologies field under the situation of spirit that does not break away from the utility model and scope, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to the category of the utility model, should be limited each claim.
Claims (3)
1. reactive compensation system; An external grid side and an inductive load; It is characterized in that; The thyristor that said system comprises the LCL filter circuit, an IGBT bridge and the electric capacity that are connected successively with said grid side, be connected with said grid side successively and the first reactive power compensation serial inductor capacitance device group, the contactor and the second reactive power compensation serial inductor capacitance device group that are connected successively with said grid side, wherein:
The two ends of said electric capacity all connect said IGBT bridge.
2. reactive compensation system according to claim 1 is characterized in that, said LCL filter circuit comprises three capacitors and two groups of reactors, wherein:
Said two groups of reactors interconnect, and every group of reactor comprises three reactors arranged side by side;
Said three capacitors end separately connects three reactors arranged side by side in said every group of reactor respectively, and the other end separately interconnects.
3. reactive compensation system according to claim 1 is characterized in that, the first reactive power compensation serial inductor capacitance device group that is connected with said thyristor comprises the inductance capacitor of some series connection; The second reactive power compensation serial inductor capacitance device group that is connected with said contactor comprises the inductance capacitor of some series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120334064 CN202206144U (en) | 2011-09-07 | 2011-09-07 | Reactive power compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120334064 CN202206144U (en) | 2011-09-07 | 2011-09-07 | Reactive power compensation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202206144U true CN202206144U (en) | 2012-04-25 |
Family
ID=45970241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120334064 Expired - Fee Related CN202206144U (en) | 2011-09-07 | 2011-09-07 | Reactive power compensation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202206144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983575A (en) * | 2011-09-07 | 2013-03-20 | 上海市电力公司 | Reactive compensation system |
-
2011
- 2011-09-07 CN CN 201120334064 patent/CN202206144U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983575A (en) * | 2011-09-07 | 2013-03-20 | 上海市电力公司 | Reactive 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: 20120425 Termination date: 20190907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |