CN202798000U - Static var generator (SVG) high voltage static reactive power compensation system - Google Patents
Static var generator (SVG) high voltage static reactive power compensation system Download PDFInfo
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- CN202798000U CN202798000U CN2012204861345U CN201220486134U CN202798000U CN 202798000 U CN202798000 U CN 202798000U CN 2012204861345 U CN2012204861345 U CN 2012204861345U CN 201220486134 U CN201220486134 U CN 201220486134U CN 202798000 U CN202798000 U CN 202798000U
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- svg
- cabinet
- high voltage
- reactive power
- static
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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
- Y02E40/10—Flexible AC transmission systems [FACTS]
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Abstract
The utility model relates to a static var generator (SVG) high voltage static reactive power compensation system. The SVG high voltage static reactive power compensation system comprises a charging cabinet, a power cabinet and an SVG control cabinet, the charging cabinet is connected with a low voltage side bus and comprises a charge resistor and a connecting electric reactor which are in a series connection, the connecting electric reactor is connected with an SVG static var compensator, the SVG static var compensator is installed in the power cabinet, and the SVG control cabinet triggers and controls a power tube which is connected with the SVG static var compensator and is connected with voltage and current of the low voltage side bus in a sampling mode through a voltage current transformer. The SVG high voltage static reactive power compensation system is divided into the charging cabinet, the power cabinet and the control cabinet, the entire system device is reasonably classified and installed in the cabinets, functions of the cabinets are different, the assembly relationship is clear, so that the installation of the cabinets can be respectively performed, when a fault occurs, corresponding cabinets are merely required to be maintained, and the work efficiency is improved.
Description
Technical field
The utility model relates to a kind of SVG high voltage static reactive power compensation system.
Background technology
The SVG static reacance generator can the compensation network reactive power.Existing static reactive system equipment is many, but equipment is not classified, and usually is installed in the same cabinet, and it is very inconvenient to install, and also is difficult to maintenance when breaking down.
The utility model content
The purpose of this utility model provides a kind of SVG high voltage static reactive power compensation system, and the problem of assembling inconvenience is installed in order to solve bucking-out system of the prior art.
For achieving the above object, scheme of the present utility model is: SVG high voltage static reactive power compensation system, comprise charging cabinet, power cabinet and SVG control cubicle, charging cabinet is connected on the low-pressure side bus, be provided with charging resistor and the linked reactor of series connection in the charging cabinet, linked reactor connects the SVG static passive compensation device, and the SVG static passive compensation device is installed in the power cabinet; The SVG control cubicle triggers the power tube of the described SVG static passive compensation device of control connection, connects the low-pressure side bus electric current and voltage by the voltage current transformer sampling.
Described charging cabinet also comprises charged display device, by-pass switch and lightning arrester.
Described control cubicle also connects grounding switch auxiliary contact and auxiliary contacts of circuit breaker, sampling grounding switch position signalling and circuit breaker position signal.
Described power tube is the IGBT module.
Described low-pressure side bus connects high-voltage side bus by bus.SVG high voltage static reactive power compensation of the present utility model system is divided into charging cabinet, power cabinet and control cubicle three parts, whole system equipment Rational Classification is installed in the above-mentioned cabinet, because function is different, assembly relation is clear and definite, can carry out respectively when mounted.Only need overhaul corresponding cabinet when breaking down, improve operating efficiency.
Description of drawings
Fig. 1 is systematic schematic diagram of the present utility model;
Fig. 2 is the power cell circuit theory diagrams;
Fig. 3 is the SVG of Y-connection.
Fig. 4 is the single-phase equivalent schematic diagram of SVG;
Fig. 5 is the leading vectogram of electric current;
Fig. 6 is vectogram after the current hysteresis.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
SVG high voltage static reactive power compensation system as shown in Figure 1, comprise charging cabinet, power cabinet and SVG control cubicle, charging cabinet is connected on the low-pressure side bus, the charging resistor and the linked reactor that comprise series connection, linked reactor connects the SVG static passive compensation device, and the SVG static passive compensation device is installed in the power cabinet; The SVG control cubicle triggers the power tube of the described SVG static passive compensation device of control connection, connects low-pressure side bus electric current and voltage (1,2) by the voltage current transformer sampling.Low-pressure side bus connects high-voltage side bus by bus.Power tube is the IGBT module.Control cubicle also connects grounding switch auxiliary contact and auxiliary contacts of circuit breaker (3,4), sampling grounding switch position signalling and circuit breaker position signal.
Being single power cell such as Fig. 2, is an IGBT full bridge inverter.The power cell trigger board receives the SVG triggering signal from the SVG control cubicle, for the IGBT module provides driving.The SVG static passive compensation device whenever consists of chain structure by a plurality of power unit cascades, then Y-connection as shown in Figure 3.
Charging cabinet also comprises charged display device, by-pass switch and lightning arrester.Each parts is as scheming from right to left, being followed successively by from top to down in the charging cabinet: charged display device: charged demonstration effect, capacitor wherein are dividing potential drop and the effect that suppresses due to voltage spikes.By-pass switch was closed after by-pass switch: SVG charging was finished, and with the charging resistor bypass, avoided lasting current flowing resistance, reduced equipment loss.Lightning arrester: prevent overvoltage.Charging resistor: SVG combined floodgate moment access loop, the restriction inrush phenomenon.Linked reactor: act as the effect that connects these two different voltage sources of electrical network and power cell, can suppress in addition power cell output high-frequency harmonic.
Such as Fig. 4-6, establish the alternating voltage of line voltage and SVG output and use respectively phasor
With
Expression then connects the voltage on the reactance X=ω L
Be
With
Phasor poor, and the electric current of linked reactor can be controlled by its voltage.
This electric current is exactly the electric current that SVG absorbs from electrical network
If do not take into account the loss of linked reactor and current transformer, the operation principle of SVG can represent with Fig. 4.In this case, only need make
With
Homophase only changes
The amplitude size namely can be controlled the electric current that SVG absorbs from electrical network and be leading or lag behind 90 °, and can control the size of this electric current.
Claims (5)
1.SVG high voltage static reactive power compensation system, it is characterized in that, comprise charging cabinet, power cabinet and SVG control cubicle, charging cabinet is connected on the low-pressure side bus, be provided with charging resistor and the linked reactor of series connection in the charging cabinet, linked reactor connects the SVG static passive compensation device, and the SVG static passive compensation device is installed in the power cabinet; The SVG control cubicle triggers the power tube of the described SVG static passive compensation device of control connection, connects the low-pressure side bus electric current and voltage by the voltage current transformer sampling.
2. according to the described SVG high voltage static reactive power compensation of the requirement 1 of getting up system, it is characterized in that described charging cabinet also comprises charged display device, by-pass switch and lightning arrester.
3. according to the described SVG high voltage static reactive power compensation of the requirement 1 of getting up system, it is characterized in that described control cubicle also connects grounding switch auxiliary contact and auxiliary contacts of circuit breaker, sampling grounding switch position signalling and circuit breaker position signal.
4. according to the described SVG high voltage static reactive power compensation of the requirement 1 of getting up system, it is characterized in that described power tube is the IGBT module.
5. according to the described SVG high voltage static reactive power compensation of the requirement 1 of getting up system, it is characterized in that described low-pressure side bus connects high-voltage side bus by bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204861345U CN202798000U (en) | 2012-09-21 | 2012-09-21 | Static var generator (SVG) high voltage static reactive power compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204861345U CN202798000U (en) | 2012-09-21 | 2012-09-21 | Static var generator (SVG) high voltage static reactive power compensation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798000U true CN202798000U (en) | 2013-03-13 |
Family
ID=47825176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204861345U Expired - Fee Related CN202798000U (en) | 2012-09-21 | 2012-09-21 | Static var generator (SVG) high voltage static reactive power compensation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202798000U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022517A (en) * | 2014-06-13 | 2014-09-03 | 合容电气股份有限公司 | SVG for high-voltage static synchronous reactive compensation device |
| CN107070357A (en) * | 2017-04-28 | 2017-08-18 | 荣信汇科电气技术有限责任公司 | It is a kind of that the high-power frequency conversion device and method of work frequency conversion switching can be realized based on IEGT |
-
2012
- 2012-09-21 CN CN2012204861345U patent/CN202798000U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022517A (en) * | 2014-06-13 | 2014-09-03 | 合容电气股份有限公司 | SVG for high-voltage static synchronous reactive compensation device |
| CN107070357A (en) * | 2017-04-28 | 2017-08-18 | 荣信汇科电气技术有限责任公司 | It is a kind of that the high-power frequency conversion device and method of work frequency conversion switching can be realized based on IEGT |
| CN107070357B (en) * | 2017-04-28 | 2023-11-10 | 荣信汇科电气股份有限公司 | High-power frequency conversion device and method capable of realizing industrial frequency conversion switching based on IEGT |
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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: 20130313 Termination date: 20210921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |