CN103532395A - Power supply circuit of power module of chain circuit SVG (static var generator) - Google Patents
Power supply circuit of power module of chain circuit SVG (static var generator) Download PDFInfo
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- CN103532395A CN103532395A CN201310537110.7A CN201310537110A CN103532395A CN 103532395 A CN103532395 A CN 103532395A CN 201310537110 A CN201310537110 A CN 201310537110A CN 103532395 A CN103532395 A CN 103532395A
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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 invention discloses a power supply circuit of a power module of a chain circuit SVG. The power supply circuit comprises an H-bridge circuit, an energy-acquiring circuit and a switching-mode power supply, wherein two thyristors which are in anti-parallel connection are connected to an output side of the H-bridge circuit in parallel, the energy-acquiring circuit is provided with two groups of input ends, one group of input ends are connected with the output side of the H-bridge circuit of the power module, the other group of input ends are connected with output sides of H-bridge circuits of other power modules, and an output end of the energy-acquiring circuit is connected with the switching-mode power supply. According to the power supply circuit, power supply and energy acquiring circuits inside the chain circuit SVG are changed, so that the power modules of the chain circuit SVG can supply power normally under the condition of chain lower currents or module bypass, and the reliability of the chain circuit SVG can be improved.
Description
Technical field
The present invention relates to a kind of SVG power supply circuits, be specifically related to a kind of chain type SVG power model power supply circuits.
Background technology
Development along with power electronic technology, STATCOM (SVG) based on high-power turn-off device (IGBT, IGCT) obtains develop rapidly, the direct screening device of the different electric pressures such as 6KV, 10KV, 35KV has all been realized factory's industrialization and has been produced, SVG is the idle or harmonic current of compensating load or electrical network fast, improve power factor of electric network and reduce harmonic content, the market share expanding has gradually substituted large quantities of old-fashioned reactive power compensators, as SVC, fixing switched capacitor etc.
Mesohigh SVG main circuit structure mainly comprises multiplex, many level of chained scheduling structure, wherein chain type SVG obtains develop rapidly with its numerous advantages, the every phase of chain type SVG as shown in Fig. 1 is all comprised of the identical power model of a plurality of structures, a plurality of power model superimposed voltage finally realize the raising of electric pressure, the stack of voltage with multiple levels has simultaneously guaranteed good waveform quality, has greatly reduced the harmonic content of output voltage.
The patent of invention of application number 201210131589.X provides power model alternating voltage to get can summation current transformer to get that can two kinds get can mode, wherein alternating voltage is got and can after power model bypass, cannot be continued to provide Power supply, and current transformer is got and can hour also cannot normally be provided Power supply at chain junction current, therefore this patent of invention some malfunctioning modules in chain junction current hour cannot normal bypass link, reduce the device reliability of chain type SVG.
The patent of invention of application number 201220151439.0 provides a kind of centralized power supply system of powering to power model by AC constant-current source and magnet ring, this supply power mode has proposed higher requirement to the withstand voltage design of insulated cable, this supply power mode belongs to the centrally connected power supply type of power model simultaneously, if any one of insulated cable occur punch-through or AC constant-current source and break down, whole electric power system cannot be worked, and also indirectly reduce the device reliability of chain type SVG.
Summary of the invention
The object of the invention is the deficiency existing for prior art, a kind of chain type SVG power model power supply circuits are provided.
The object of the invention is to realize by following technological means:
Comprise H bridge circuit, get energy circuit, Switching Power Supply, the thyristor of two reverse parallel connections is connected in parallel on the outlet side of H bridge circuit, get and can there are two groups of inputs by circuit, one group of input connects the outlet side of the H bridge circuit of this power model, another group input connects the outlet side of the H bridge circuit of other power model, and getting can circuit output end connecting valve power supply.
Concrete, H bridge circuit comprises four IGBT, the series arm of two IGBT formations is in parallel with the series arm that another two IGBT form, each IGBT and a diodes in parallel.
Concrete, to get and can comprise two-way isolating transformer and rectification circuit by circuit, the secondary of isolating transformer respectively connects the input of a rectification circuit, and the output of two-way rectification circuit is supplied with Switching Power Supply after connecting same filter circuit.Filter circuit is electric capacity in parallel.
Compared with prior art the present invention has following obvious advantage: the present invention has changed chain type SVG in-line power and got energy circuit; make the power model of chain type SVG can both normally obtain electric energy in the situation that of the little electric current of link or module bypass, improve the device reliability of chain type SVG.
Accompanying drawing explanation
Fig. 1 is the star-like link topology diagram of chain type SVG;
Fig. 2 is SVG power model power supply circuit;
Fig. 3 is the circuit diagram of getting energy circuit;
In figure, 1-power model one, 2-power model two.
Embodiment
Below in conjunction with accompanying drawing explanation and embodiment, the present invention is described in further detail:
Chain type SVG power model power supply circuits as shown in Figure 2, comprise H bridge circuit, get energy circuit, Switching Power Supply, H bridge circuit comprises four IGBT, and the series arm that IGBT1 forms with IGBT2 is in parallel with the series arm that IGBT4 forms with IGBT3, each IGBT and a diodes in parallel.The thyristor of two reverse parallel connections is connected in parallel on the outlet side of H bridge circuit.
Power model 1 has output u1, v1, and power model 22 has output u2, v2.
Get as shown in Figure 3 and can comprise two-way isolating transformer and rectification circuit by circuit, No. one isolating transformer T1 input connects output u1, the v1 of power model 1, what another road isolating transformer T2 input connected power model 22 has output u2, a v2, the secondary of isolating transformer T1, T2 respectively connects the input of a rectification circuit, the output of two-way rectification circuit is supplied with Switching Power Supply after connecting same filter circuit, and filter circuit is capacitor C 2 in parallel.Capacitor C 2 connecting valve power supplys.
The above; be only a part of embodiment of the present invention, protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.
Claims (4)
1. chain type SVG power model power supply circuits, comprise H bridge circuit, get energy circuit, Switching Power Supply, it is characterized in that: the thyristor of two reverse parallel connections is connected in parallel on the outlet side of described H bridge circuit, described getting can have two groups of inputs by circuit, one group of input connects the outlet side of the described H bridge circuit of this power model, another group input connects the outlet side of the described H bridge circuit of other power model, described in get can circuit output end connecting valve power supply.
2. chain type SVG power model power supply circuits according to claim 1, it is characterized in that: described H bridge circuit comprises four IGBT, the series arm of two described IGBT formations is in parallel with the series arm that another two described IGBT form, IGBT and a diodes in parallel described in each.
3. chain type SVG power model power supply circuits according to claim 1, it is characterized in that: described in get and can circuit comprise two-way isolating transformer and rectification circuit, the secondary of described isolating transformer respectively connects the input of rectification circuit described in, after the output of rectification circuit connects same filter circuit described in two-way, connects described Switching Power Supply.
4. chain type SVG power model power supply circuits according to claim 3, is characterized in that: described filter circuit is electric capacity in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537110.7A CN103532395A (en) | 2013-11-05 | 2013-11-05 | Power supply circuit of power module of chain circuit SVG (static var generator) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537110.7A CN103532395A (en) | 2013-11-05 | 2013-11-05 | Power supply circuit of power module of chain circuit SVG (static var generator) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103532395A true CN103532395A (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310537110.7A Pending CN103532395A (en) | 2013-11-05 | 2013-11-05 | Power supply circuit of power module of chain circuit SVG (static var generator) |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037778A (en) * | 2014-05-15 | 2014-09-10 | 广州智光电气股份有限公司 | Chain type SVG device with fault automatic restart function |
| CN105119478A (en) * | 2015-09-30 | 2015-12-02 | 苏州英威腾电力电子有限公司 | Bypass contactor control panel of power unit |
| CN111509756A (en) * | 2020-04-03 | 2020-08-07 | 清华大学 | High-order online energy-taking device and method for hybrid converter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572489A (en) * | 2009-06-12 | 2009-11-04 | 清华大学 | Control power supply of chain type current converter in chain type static synchronous compensator |
| CN102064555A (en) * | 2010-12-31 | 2011-05-18 | 中电普瑞科技有限公司 | Chain type STATCOM (Static Synchronous Compensator) chain unit bypass structure with mechanical switch |
| CN102324850A (en) * | 2011-10-13 | 2012-01-18 | 江苏威凡智能电气科技有限公司 | Chain link control power supply in chain static synchronous compensator |
| CN102638157A (en) * | 2012-05-02 | 2012-08-15 | 株洲南车时代电气股份有限公司 | Unit H-bridge module bypass circuit of chain type static synchronous compensator (STATCOM) |
| CN202872382U (en) * | 2012-10-19 | 2013-04-10 | 中国西电电气股份有限公司 | A high-voltage chained STATCOM and a mixed bypass system employed by the high-voltage chained STATCOM |
| CN203504418U (en) * | 2013-11-05 | 2014-03-26 | 山东新风光电子科技发展有限公司 | Chain-type SVG power module power supply circuit |
-
2013
- 2013-11-05 CN CN201310537110.7A patent/CN103532395A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572489A (en) * | 2009-06-12 | 2009-11-04 | 清华大学 | Control power supply of chain type current converter in chain type static synchronous compensator |
| CN102064555A (en) * | 2010-12-31 | 2011-05-18 | 中电普瑞科技有限公司 | Chain type STATCOM (Static Synchronous Compensator) chain unit bypass structure with mechanical switch |
| CN102324850A (en) * | 2011-10-13 | 2012-01-18 | 江苏威凡智能电气科技有限公司 | Chain link control power supply in chain static synchronous compensator |
| CN102638157A (en) * | 2012-05-02 | 2012-08-15 | 株洲南车时代电气股份有限公司 | Unit H-bridge module bypass circuit of chain type static synchronous compensator (STATCOM) |
| CN202872382U (en) * | 2012-10-19 | 2013-04-10 | 中国西电电气股份有限公司 | A high-voltage chained STATCOM and a mixed bypass system employed by the high-voltage chained STATCOM |
| CN203504418U (en) * | 2013-11-05 | 2014-03-26 | 山东新风光电子科技发展有限公司 | Chain-type SVG power module power supply circuit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037778A (en) * | 2014-05-15 | 2014-09-10 | 广州智光电气股份有限公司 | Chain type SVG device with fault automatic restart function |
| CN104037778B (en) * | 2014-05-15 | 2016-05-18 | 广州智光电气股份有限公司 | A kind of chain type SVG device with fault autoboot function |
| CN105119478A (en) * | 2015-09-30 | 2015-12-02 | 苏州英威腾电力电子有限公司 | Bypass contactor control panel of power unit |
| CN105119478B (en) * | 2015-09-30 | 2017-12-08 | 苏州英威腾电力电子有限公司 | A kind of bypass contactor control panel of power cell |
| CN111509756A (en) * | 2020-04-03 | 2020-08-07 | 清华大学 | High-order online energy-taking device and method for hybrid converter |
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Application publication date: 20140122 |