CN201234138Y - No-voltage impact operation apparatus when sharing one high voltage switch by TCR, FC - Google Patents
No-voltage impact operation apparatus when sharing one high voltage switch by TCR, FC Download PDFInfo
- Publication number
- CN201234138Y CN201234138Y CNU2008200145227U CN200820014522U CN201234138Y CN 201234138 Y CN201234138 Y CN 201234138Y CN U2008200145227 U CNU2008200145227 U CN U2008200145227U CN 200820014522 U CN200820014522 U CN 200820014522U CN 201234138 Y CN201234138 Y CN 201234138Y
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- Prior art keywords
- tcr
- voltage
- voltage switch
- svc
- switch gear
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- Expired - Fee Related
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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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- 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
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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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Abstract
The utility model relates to a voltage-surge-free operation device with TCR and FC sharing one high-voltage switch. The device comprises a SVC full-digital control system, a thyristor control reactor, a fixed capacitor and a high-voltage switch, wherein the thyristor control reactor consists of two thyristors connected with each other in reverse-parallel manner and sequentially connected with an inductor and an isolation switch in series; the fixed capacitor includes a capacitor sequentially connected with an inductor and an isolation switch in series; and an automatic and manual switching unit is further arranged between the high-voltage switch and the SVC full-digital control system. The voltage-surge-free operation device has the advantages that the device can greatly reduce the voltage surge in the initial operation stage of the SVC device when the high-voltage switch is switched on by arranging one high-voltage switch shared by the TCR and the FC and presetting a fixed trigger angle for the TCR, thereby effectively improving the power quality of the power grid.
Description
Technical field
No-voltage when the utility model relates to the shared high-voltage switch gear of a kind of TCR, FC of the SVC of being used for device impacts the device that puts into operation.
Background technology
Often adopt high voltage static type dynamic reactive compensation device SVC to eliminate reactive power impact in the modern power electronic commercial Application, the filtering high order harmonic component, the balance three phase network improves the power supply environment of electrical network.
TCR (Thyristor Controlled Reactor) is the chief component of thyristor-controlled reactor type static passive compensation device.Because independent TCR can only absorb the reactive power of perception, therefore often be used with shunt capacitor FC.Behind the shunt capacitor, make that total reactive power is the clean reactive power after TCR and shunt capacitor reactive power are offset.Be characterized in to regulate continuously the reactive power of compensation arrangement.
FC (Fixed Capacitor) is a fixed capacitor, and general and reactor is used in combination, and forms multiloop LC filter.
During the shared high-voltage switch gear of TCR in the SVC device and FC, because the time-delay of sampling and signal analysis and distortion cause voltge surge and distortion in a period of time after the input, to the impact of electrical network with influence bigger.
Summary of the invention
For overcoming the deficiencies in the prior art, no-voltage when the purpose of this utility model provides the shared high-voltage switch gear of a kind of TCR, FC impacts the device that puts into operation, this device adopts the mode of the shared high-voltage switch gear of TCR, FC, and TCR presets fixedly trigger angle, when high-voltage switch gear closes a floodgate, reduce the put into operation voltge surge at initial stage of SVC device greatly, effectively improved the quality of power supply of electrical network.
The utility model is realized by the following technical solutions:
No-voltage during the shared high-voltage switch gear of a kind of TCR, FC impacts the device that puts into operation, this device is made up of SVC Digital Control System, thyristor-controlled reactor, fixed capacitor, high-voltage switch gear, form successively again by series inductance, isolating switch by two antiparallel thyristors for thyristor-controlled reactor, fixed capacitor is made up of electric capacity series inductance successively, isolating switch, and fixed capacitor can be made of one or more groups as required; Thyristor-controlled reactor is connected the SVC bus with fixed capacitor, be connected to high-voltage switch gear between SVC bus and the single-phase bus.
Also be provided with automatic and manual switchover unit between described high-voltage switch gear and the SVC Digital Control System.
Described thyristor-controlled reactor TCR adopts and presets the fixedly mode of trigger angle, when high-voltage switch gear closes a floodgate, makes the capacitive reactive power of the idle FC of equaling of TCR.
Compared with prior art, the beneficial effects of the utility model are:
This device adopts the mode of the shared high-voltage switch gear of TCR, FC, and TCR presets fixedly trigger angle, when high-voltage switch gear closes a floodgate, has reduced the put into operation voltge surge at initial stage of SVC device greatly, has effectively improved the quality of power supply of electrical network.
Description of drawings
Fig. 1 is the structure principle chart of the single-phase SVC of the utility model.
Fig. 2 is a structure principle chart of the present utility model.
Embodiment
Be described in detail embodiment of the present utility model below in conjunction with accompanying drawing:
See Fig. 1, a kind of TCR, no-voltage during the shared high-voltage switch gear of FC impacts the device that puts into operation, this device is by the SVC Digital Control System, thyristor-controlled reactor TCR, fixed capacitor FC1, fixed capacitor FC2, high-voltage switch gear K forms, thyristor-controlled reactor TCR is by two antiparallel thyristor D series inductance L1 successively again, isolating switch G1 forms, fixed capacitor FC1 is by capacitor C 2 series inductance L2 successively, isolating switch G2 forms, fixed capacitor FC2 is by capacitor C 3 series inductance L3 successively, isolating switch G3 forms, and fixed capacitor can be as required by one or more groups electric capacity, series inductance successively, isolating switch is formed.Thyristor-controlled reactor TCR is connected the SVC bus with fixed capacitor FC1, fixed capacitor FC2, is connected to high-voltage switch gear K between SVC bus and the single-phase bus.Among Fig. 1: T is a Working transformer.
The SVC Digital Control System introduces mains voltage signal from voltage transformer pt, from the system power signal of current transformer CT1, from the current signal of the current transformer CT2 of thyristor-controlled reactor TCR and the switch state signal of high-voltage switch gear K, output SCR control signal, i.e. the start pulse signal control silicon controlled angle of flow.
See Fig. 2, after system power signal, TCR current signal, mains voltage signal are carried out pre-process and signal demodulator processing, carry out comprehensive computing, idle calculating, linearization process more successively, signal after the processing enter switch unit, again through amplitude limit, regularly, impulse transfer, form start pulse signal.
Switch unit is divided into automatic mode and manual work state.Under the operating state of normal operation, system is an automatic mode, when high-voltage switch gear closed a floodgate, system switched to the manual work state, under this operating state, TCR presets the fixedly mode of trigger angle, when high-voltage switch gear closes a floodgate, make the capacitive reactive power of the idle FC of equaling of TCR, the FC electric current is for setting electric current, through idle calculating, linearization process, the signal after the processing enters switch unit.Behind time-delay 500ms (25 cycles), system reaches stable state through logic control, switches to the operating state of automatic operation.
Claims (3)
1, the no-voltage during the shared high-voltage switch gear of a kind of TCR, FC impacts the device that puts into operation, it is characterized in that, this device is made up of SVC Digital Control System, thyristor-controlled reactor, fixed capacitor, high-voltage switch gear, form successively again by series inductance, isolating switch by two antiparallel thyristors for thyristor-controlled reactor, fixed capacitor is made up of electric capacity series inductance successively, isolating switch, and fixed capacitor can be made of one or more groups as required; Thyristor-controlled reactor is connected the SVC bus with fixed capacitor, be connected to high-voltage switch gear between SVC bus and the single-phase bus.
2, the no-voltage during the shared high-voltage switch gear of a kind of TCR according to claim 1, FC impacts the device that puts into operation, and it is characterized in that, also is provided with automatic and manual switchover unit between described high-voltage switch gear and the SVC Digital Control System.
3, the no-voltage during the shared high-voltage switch gear of a kind of TCR according to claim 1, FC impacts the device that puts into operation, it is characterized in that, described thyristor-controlled reactor TCR adopts and presets the fixedly mode of trigger angle, when high-voltage switch gear closes a floodgate, makes the capacitive reactive power of the idle FC of equaling of TCR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200145227U CN201234138Y (en) | 2008-07-30 | 2008-07-30 | No-voltage impact operation apparatus when sharing one high voltage switch by TCR, FC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200145227U CN201234138Y (en) | 2008-07-30 | 2008-07-30 | No-voltage impact operation apparatus when sharing one high voltage switch by TCR, FC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201234138Y true CN201234138Y (en) | 2009-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200145227U Expired - Fee Related CN201234138Y (en) | 2008-07-30 | 2008-07-30 | No-voltage impact operation apparatus when sharing one high voltage switch by TCR, FC |
Country Status (1)
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| CN (1) | CN201234138Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118032A (en) * | 2011-03-29 | 2011-07-06 | 荣信电力电子股份有限公司 | SVC reactive prediction and compensation method for rectifier load |
| CN102377188A (en) * | 2011-11-04 | 2012-03-14 | 辽宁省电力有限公司抚顺供电公司 | Voltage surge-free method for cutting off thyristor valve group by thyristor controlled reactor (TCR) and fiber channel (FC) sharing switch |
| WO2013063905A1 (en) * | 2011-11-04 | 2013-05-10 | 荣信电力电子股份有限公司 | Voltage surge-free device and method for cutting off thyristor valve block |
| CN106159958A (en) * | 2016-03-18 | 2016-11-23 | 武汉武新电气科技股份有限公司 | The comprehensive lifting device of rural power grids low-voltage and method on a kind of post |
| CN109286193A (en) * | 2018-11-01 | 2019-01-29 | 乌海市创新技术应用研究所 | A kind of electric arc furnace low-pressure reactive compensation and filter and its voltage control method |
-
2008
- 2008-07-30 CN CNU2008200145227U patent/CN201234138Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118032A (en) * | 2011-03-29 | 2011-07-06 | 荣信电力电子股份有限公司 | SVC reactive prediction and compensation method for rectifier load |
| CN102377188A (en) * | 2011-11-04 | 2012-03-14 | 辽宁省电力有限公司抚顺供电公司 | Voltage surge-free method for cutting off thyristor valve group by thyristor controlled reactor (TCR) and fiber channel (FC) sharing switch |
| WO2013063905A1 (en) * | 2011-11-04 | 2013-05-10 | 荣信电力电子股份有限公司 | Voltage surge-free device and method for cutting off thyristor valve block |
| CN106159958A (en) * | 2016-03-18 | 2016-11-23 | 武汉武新电气科技股份有限公司 | The comprehensive lifting device of rural power grids low-voltage and method on a kind of post |
| CN109286193A (en) * | 2018-11-01 | 2019-01-29 | 乌海市创新技术应用研究所 | A kind of electric arc furnace low-pressure reactive compensation and filter and its voltage control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20120730 |