CN104538974A - Three-phase three-wire series connection type dynamic voltage compensator - Google Patents
Three-phase three-wire series connection type dynamic voltage compensator Download PDFInfo
- Publication number
- CN104538974A CN104538974A CN201410790652.XA CN201410790652A CN104538974A CN 104538974 A CN104538974 A CN 104538974A CN 201410790652 A CN201410790652 A CN 201410790652A CN 104538974 A CN104538974 A CN 104538974A
- Authority
- CN
- China
- Prior art keywords
- phase
- circuit
- input
- receives
- switch
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
- Ac-Ac Conversion (AREA)
Abstract
The invention relates to a three-phase three-wire series connection type dynamic voltage compensator and belongs to the field of electric automation devices. The alternating-current input end of the phase-A compensation circuit is connected to the first input end of an autotransformer, one end of a first inspection switch and one end of an automatic bypass switch. The second input end of the autotransformer is connected to the alternating-current input end of the phase-B compensation circuit, and the output end of the autotransformer is connected to the input end of a rectifying inversion filtering circuit of the phase, the first input end of the rectifying inversion filtering circuit is connected to the other end of the first inspection switch of the phase and one end of an anti-parallel-connection bypass thyristor of the phase, the second output end of the rectifying inversion filtering circuit is connected to one end of a second inspection switch of the phase and the other end of the anti-parallel-connection bypass thyristor of the phase, and the other end of the second inspection switch of the phase is connected to the other end of an automatic bypass switch of the phase and used as the alternating-current output end of the phase-A compensation circuit. By the adoption of the three-phase three-wire series connection type dynamic voltage compensator, on the premise that the needed dynamic voltage drop compensation is achieved, an isolation transformer on the rectifying side is omitted, and the overall cost of the compensator is reduced.
Description
Technical field
The present invention relates to a kind of phase three-wire three dynamic voltage compensator in series type, belong to field of electric automatization equipment.
Background technology
Dynamic voltage compensator (or claim dynamic electric voltage recovery device, DVR), for to fall or the line voltage of overshoot compensates fast, makes the voltage of load side keep stable, is not subject to the impact of electrical network electric voltage exception.
Dynamic voltage compensator can adopt series connection compensation way in the line, also can adopt compensation way on the line in parallel.Under the dynamic voltage compensation prerequisite required for realizing, dynamic voltage compensator should reduce costs as much as possible.Traditional dynamic voltage compensator in series type is not when inversion outlet side isolates access of directly connecting by compensated line, rectification side needs to adopt isolating transformer to provide DC power supply for inverter DC capacitor, make cost higher, therefore need to find new circuit topology and reduce costs further.
Summary of the invention
The object of the invention is to propose a kind of phase three-wire three dynamic voltage compensator in series type, to overcome the deficiency of prior art, under the dynamic voltage compensation function prerequisite required for realizing, cancel the isolating transformer of rectification side, reduce the holistic cost of compensator.
The phase three-wire three dynamic voltage compensator in series type that the present invention proposes, comprise A phase compensating circuit, B phase compensating circuit and C phase compensating circuit, every phase compensating circuit comprises an autotransformer, a commutation inversion filter circuit, inverse parallel bypass Group of Silicon Controlled Rectifier, the first inspection switch, the second inspection switch and an auto by pass switch;
The ac input end of A phase compensating circuit is connected to the first input end of this phase autotransformer simultaneously, one end of this phase first inspection switch and one end of this phase auto by pass switch, second input of this phase autotransformer receives the ac input end of B phase compensating circuit, the output of this phase autotransformer is connected to the input of this commutating phase inversion filter circuit, first output of this commutating phase inversion filter circuit is connected to the other end of this phase first inspection switch and one end of this phase inverse parallel bypass Group of Silicon Controlled Rectifier, second output of this commutating phase inversion filter circuit receives one end of this phase second inspection switch and the other end of this phase inverse parallel bypass Group of Silicon Controlled Rectifier, the other end of this phase second inspection switch receives the other end of this phase auto by pass switch, and as the ac output end of A phase compensating circuit,
The ac input end of B phase compensating circuit is connected to the first input end of this phase autotransformer simultaneously, one end of this phase first inspection switch and one end of this phase auto by pass switch, second input of this phase autotransformer receives the ac input end of C phase compensating circuit, the output of this phase autotransformer receives the input of this commutating phase inversion filter circuit, first output of this commutating phase inversion filter circuit receives the other end of this phase first inspection switch and one end of this phase inverse parallel bypass Group of Silicon Controlled Rectifier, second output of this commutating phase inversion filter circuit receives one end and this phase inverse parallel bypass silicon controlled other end of this phase second inspection switch, the other end of this phase second inspection switch receives the other end of this phase auto by pass switch, and as the ac output end of B phase compensating circuit,
The ac input end of C phase compensating circuit receives the first input end of this phase autotransformer simultaneously, one end of this phase first inspection switch and one end of this phase auto by pass switch, second input of this phase autotransformer receives the ac input end of A phase compensating circuit, the output of this phase autotransformer receives the input of this commutating phase inversion filter circuit, first output of this commutating phase inversion filter circuit receives the other end of this phase first inspection switch and one end of this phase inverse parallel bypass Group of Silicon Controlled Rectifier, second output of this commutating phase inversion filter circuit receives one end and this phase inverse parallel bypass silicon controlled other end of this phase second inspection switch, the other end of this phase second inspection switch receives the other end of this phase auto by pass switch, and as the ac output end of C phase compensating circuit.
In above-mentioned phase three-wire three dynamic voltage compensator in series type, described commutation inversion filter circuit, comprise the first rectifier diode, second rectifier diode, first accumulator, the second accumulator, a voltage source half-bridge inversion circuit, first filter inductance, the second filter inductance and a resistance and capacitances in series filter branch; the anode of the first described rectifier diode and the negative electrode of the second described rectifier diode link together as the input of described commutation inversion filter circuit, the negative electrode of the first described rectifier diode receives the positive terminal of the first described accumulator and the positive terminal of described voltage source half-bridge inversion circuit simultaneously, the anode of the second described rectifier diode receives the negative pole end of the second described accumulator and the negative pole end of described voltage source half-bridge inversion circuit simultaneously, the negative pole end of the first described accumulator connects together with the positive terminal of the second described accumulator, and be connected to the described input of voltage source half-bridge inversion circuit electric capacity brachium pontis and one end of the first described filter inductance simultaneously, the input of the semiconductor switch brachium pontis of described voltage source half-bridge inversion circuit is connected to one end of the second described filter inductance, the other end of the first described filter inductance is connected to one end of described resistance and capacitances in series filter branch, and as described commutation inversion filter circuit first output, the other end of the second described filter inductance is connected to the other end of described resistance and capacitances in series filter branch, and as described commutation inversion filter circuit second output.
The voltage source half-bridge inversion circuit of above-mentioned commutation inversion filter circuit, by the first electric capacity, second electric capacity, the semiconductor switch of the first band anti-paralleled diode and the semiconductor switch composition of the second band anti-paralleled diode, one end of the first described electric capacity connects together the positive terminal as described voltage source half-bridge inversion circuit with the semiconductor switch collector electrode of the described first band anti-paralleled diode, one end of the second described electric capacity connects together the negative pole end as described voltage source half-bridge inversion circuit with the semiconductor switch emitter of the described second band anti-paralleled diode, the other end of the other end of first described electric capacity and described second electric capacity links together as the input of described voltage source half-bridge inversion circuit electric capacity brachium pontis, the semiconductor switch emitter of the first described band anti-paralleled diode connects together the input as described voltage source half-bridge inversion circuit semiconductor switch brachium pontis with the semiconductor switch collector electrode of the described second band anti-paralleled diode.
The advantage of the phase three-wire three dynamic voltage compensator in series type that the present invention proposes is:
When inverter side directly accesses by compensated line, rectification side does not need to use isolating transformer yet, adds the application of accumulator, the volume of device and cost can be made to reduce significantly, and compensation performance is unaffected, can improve the competitiveness of product.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of phase three-wire three dynamic voltage compensator in series type of the present invention.
Fig. 2 is the circuit theory diagrams of commutation inversion filter circuit in the phase three-wire three dynamic voltage compensator in series type shown in Fig. 1.
In Fig. 1 and Fig. 2,1 is autotransformer, and 2 is commutation inversion filter circuits, 3 is inverse parallel bypass Group of Silicon Controlled Rectifier, and 4 is first inspection switch, and 5 is second inspection switch, 6 is auto by pass switches, and 7 is first rectifier diodes, and 8 is second rectifier diodes, 9 is first accumulators, 10 is second accumulators, and 11 is voltage source half-bridge inversion circuits, and 12 is first filter inductances, 13 is second filter inductances, and 14 is resistance and capacitances in series filter branch.
Embodiment
The phase three-wire three dynamic voltage compensator in series type that the present invention proposes, comprise A phase compensating circuit, B phase compensating circuit, C phase compensating circuit, every phase compensating circuit comprises an autotransformer, a commutation inversion filter circuit, an inverse parallel bypass controllable silicon, first inspection switch, the second inspection switch and an auto by pass switch, and comprise three ac input ends A, B, C and three ac output ends U, V, W;
The ac input end of A phase compensating circuit receives the first input end of this phase autotransformer, one end of this phase first inspection switch and one end of this phase auto by pass switch, second input of this phase autotransformer receives the ac input end of B phase compensating circuit, the output of this phase autotransformer receives the input of this commutating phase inversion filter circuit, first output of this commutating phase inversion filter circuit receives the other end and this phase inverse parallel bypass silicon controlled one end of this phase first inspection switch, second output of this commutating phase inversion filter circuit receives one end and this phase inverse parallel bypass silicon controlled other end of this phase second inspection switch, the other end of this phase second inspection switch receives the other end of this phase auto by pass switch, and as the ac output end of A phase compensating circuit, the ac input end of B phase compensating circuit receives the first input end of this phase autotransformer, one end of this phase first inspection switch and one end of this phase auto by pass switch, second input of this phase autotransformer receives the ac input end of C phase compensating circuit, the output of this phase autotransformer receives the input of this commutating phase inversion filter circuit, first output of this commutating phase inversion filter circuit receives the other end and this phase inverse parallel bypass silicon controlled one end of this phase first inspection switch, second output of this commutating phase inversion filter circuit receives one end and this phase inverse parallel bypass silicon controlled other end of this phase second inspection switch, the other end of this phase second inspection switch receives the other end of this phase auto by pass switch, and as the ac output end of B phase compensating circuit, the ac input end of C phase compensating circuit receives the first input end of this phase autotransformer, one end of this phase first inspection switch and one end of this phase auto by pass switch, second input of this phase autotransformer receives the ac input end of A phase compensating circuit, the output of this phase autotransformer receives the input of this commutating phase inversion filter circuit, first output of this commutating phase inversion filter circuit receives the other end and this phase inverse parallel bypass silicon controlled one end of this phase first inspection switch, second output of this commutating phase inversion filter circuit receives one end and this phase inverse parallel bypass silicon controlled other end of this phase second inspection switch, the other end of this phase second inspection switch receives the other end of this phase auto by pass switch, and as the ac output end of C phase compensating circuit.
In above-mentioned phase three-wire three dynamic voltage compensator in series type, described commutation inversion filter circuit, comprise the first rectifier diode, second rectifier diode, first accumulator, the second accumulator, a voltage source half-bridge inversion circuit, first filter inductance, the second filter inductance and a resistance and capacitances in series filter branch.The anode of the first described rectifier diode and the negative electrode of the second described rectifier diode link together as the input of described commutation inversion filter circuit, the negative electrode of the first described rectifier diode receives the positive terminal of the first described accumulator and the positive terminal of described voltage source half-bridge inversion circuit, the anode of the second described rectifier diode receives the negative pole end of the second described accumulator and the negative pole end of described voltage source half-bridge inversion circuit, the negative pole end of the first described accumulator connects together with the positive terminal of the second described accumulator, and be connected to the described input of voltage source half-bridge inversion circuit electric capacity brachium pontis and one end of the first described filter inductance, the input of the semiconductor switch brachium pontis of described voltage source half-bridge inversion circuit is connected to one end of the second described filter inductance, the other end of the first described filter inductance is connected to one end of described resistance and capacitances in series filter branch, and as described commutation inversion filter circuit first output, the other end of the second described filter inductance is connected to the other end of described resistance and capacitances in series filter branch, and as described commutation inversion filter circuit second output.
Voltage source half-bridge inversion circuit in above-mentioned commutation inversion filter circuit, comprise the semiconductor switch of two electric capacity and two band anti-paralleled diodes, one end of first described electric capacity connects together the positive terminal as described voltage source half-bridge inversion circuit with the semiconductor switch collector electrode of described first band anti-paralleled diode, one end of second described electric capacity connects together the negative pole end as described voltage source half-bridge inversion circuit with the semiconductor switch emitter of described second band anti-paralleled diode, the other end of the other end of first described electric capacity and described second electric capacity links together as the input of described voltage source half-bridge inversion circuit electric capacity brachium pontis, the semiconductor switch emitter of first described band anti-paralleled diode connects together the input as described voltage source half-bridge inversion circuit semiconductor switch brachium pontis with the semiconductor switch collector electrode of described second band anti-paralleled diode.
Figure 1 shows that the circuit theory diagrams of the phase three-wire three dynamic voltage compensator in series type that the present invention proposes.Phase three-wire three dynamic voltage compensator in series type comprises A, B, C three-phase compensating circuit, every phase compensating circuit comprises autotransformer (1) T1, a commutation inversion filter circuit (2), one group of inverse parallel bypass controllable silicon (3) S1/S2, first inspection switch (4) K2, second inspection switch (5) K3 and auto by pass switch (6) K1, and comprise three ac input ends A, B, C and three ac output ends U, V, W.The input A of A phase compensating circuit receives the first input end of this phase autotransformer (1) T1, one end of this phase first inspection switch (4) K2 and one end of this phase auto by pass switch (6) K1, second input of this phase autotransformer (1) T1 receives the input of B phase compensating circuit, the output of this phase autotransformer (1) T1 receives the input AI of this commutating phase inversion filter circuit (2), first output terminals A O1 of this commutating phase inversion filter circuit (2) receives the other end of this phase first inspection switch (4) K2 and one end of this phase inverse parallel bypass controllable silicon (3) S1/S2, second output terminals A O2 of this commutating phase inversion filter circuit (2) receives one end of this phase second inspection switch (5) K3 and the other end of this phase inverse parallel bypass controllable silicon (3) S1/S2, the other end of this phase second inspection switch (5) K3 receives the other end of this phase auto by pass switch (6) K1, and as the output U of A phase compensating circuit.The mode of connection of B, C phase compensating circuit is identical with A phase.
As shown in Figure 2, commutation inversion filter circuit in phase three-wire three dynamic voltage compensator in series type, comprise the first rectifier diode (7) D1, second rectifier diode (8) D2, first accumulator (9), second accumulator (10), a voltage source half-bridge inversion circuit (11), first filter inductance (12) L1, the second filter inductance (13) L2 and resistance and capacitances in series filter branch (14) R/C.The anode of the first rectifier diode (7) D1 and the negative electrode of the second rectifier diode (8) D2 link together as the input AI of commutation inversion filter circuit, the positive terminal of the first accumulator (9) that the negative electrode of the first rectifier diode (7) D1 is received and the positive terminal of voltage source half-bridge inversion circuit (11), the anode of the second rectifier diode (8) D2 receives the negative pole end of the second accumulator (10) and the negative pole end of voltage source half-bridge inversion circuit (11), the negative pole end of the first accumulator (9) connects together with the positive terminal of the second accumulator (10), and be connected to the input of voltage source half-bridge inversion circuit (11) electric capacity brachium pontis and one end of the first filter inductance (12) L1, voltage source.
Claims (3)
1. a phase three-wire three dynamic voltage compensator in series type, it is characterized in that, comprise A phase compensating circuit, B phase compensating circuit and C phase compensating circuit, every phase compensating circuit comprises an autotransformer, a commutation inversion filter circuit, inverse parallel bypass Group of Silicon Controlled Rectifier, the first inspection switch, the second inspection switch and an auto by pass switch;
The ac input end of A phase compensating circuit is connected to the first input end of this phase autotransformer simultaneously, one end of this phase first inspection switch and one end of this phase auto by pass switch, second input of this phase autotransformer receives the ac input end of B phase compensating circuit, the output of this phase autotransformer is connected to the input of this commutating phase inversion filter circuit, first output of this commutating phase inversion filter circuit is connected to the other end of this phase first inspection switch and one end of this phase inverse parallel bypass Group of Silicon Controlled Rectifier, second output of this commutating phase inversion filter circuit receives one end of this phase second inspection switch and the other end of this phase inverse parallel bypass Group of Silicon Controlled Rectifier, the other end of this phase second inspection switch receives the other end of this phase auto by pass switch, and as the ac output end of A phase compensating circuit,
The ac input end of B phase compensating circuit is connected to the first input end of this phase autotransformer simultaneously, one end of this phase first inspection switch and one end of this phase auto by pass switch, second input of this phase autotransformer receives the ac input end of C phase compensating circuit, the output of this phase autotransformer receives the input of this commutating phase inversion filter circuit, first output of this commutating phase inversion filter circuit receives the other end of this phase first inspection switch and one end of this phase inverse parallel bypass Group of Silicon Controlled Rectifier, second output of this commutating phase inversion filter circuit receives one end and this phase inverse parallel bypass silicon controlled other end of this phase second inspection switch, the other end of this phase second inspection switch receives the other end of this phase auto by pass switch, and as the ac output end of B phase compensating circuit,
The ac input end of C phase compensating circuit receives the first input end of this phase autotransformer simultaneously, one end of this phase first inspection switch and one end of this phase auto by pass switch, second input of this phase autotransformer receives the ac input end of A phase compensating circuit, the output of this phase autotransformer receives the input of this commutating phase inversion filter circuit, first output of this commutating phase inversion filter circuit receives the other end of this phase first inspection switch and one end of this phase inverse parallel bypass Group of Silicon Controlled Rectifier, second output of this commutating phase inversion filter circuit receives one end and this phase inverse parallel bypass silicon controlled other end of this phase second inspection switch, the other end of this phase second inspection switch receives the other end of this phase auto by pass switch, and as the ac output end of C phase compensating circuit.
2. phase three-wire three dynamic voltage compensator in series type as claimed in claim 1, it is characterized in that, wherein said commutation inversion filter circuit, comprise the first rectifier diode, the second rectifier diode, the first accumulator, second accumulator, a voltage source half-bridge inversion circuit, the first filter inductance, the second filter inductance and a resistance and capacitances in series filter branch; the anode of the first described rectifier diode and the negative electrode of the second described rectifier diode link together as the input of described commutation inversion filter circuit, the negative electrode of the first described rectifier diode receives the positive terminal of the first described accumulator and the positive terminal of described voltage source half-bridge inversion circuit simultaneously, the anode of the second described rectifier diode receives the negative pole end of the second described accumulator and the negative pole end of described voltage source half-bridge inversion circuit simultaneously, the negative pole end of the first described accumulator connects together with the positive terminal of the second described accumulator, and be connected to the described input of voltage source half-bridge inversion circuit electric capacity brachium pontis and one end of the first described filter inductance simultaneously, the input of the semiconductor switch brachium pontis of described voltage source half-bridge inversion circuit is connected to one end of the second described filter inductance, the other end of the first described filter inductance is connected to one end of described resistance and capacitances in series filter branch, and as described commutation inversion filter circuit first output, the other end of the second described filter inductance is connected to the other end of described resistance and capacitances in series filter branch, and as described commutation inversion filter circuit second output.
3. phase three-wire three dynamic voltage compensator in series type as claimed in claim 2, it is characterized in that, wherein said voltage source half-bridge inversion circuit is by the first electric capacity, second electric capacity, the semiconductor switch of the first band anti-paralleled diode and the semiconductor switch composition of the second band anti-paralleled diode, one end of the first described electric capacity connects together the positive terminal as described voltage source half-bridge inversion circuit with the semiconductor switch collector electrode of the described first band anti-paralleled diode, one end of the second described electric capacity connects together the negative pole end as described voltage source half-bridge inversion circuit with the semiconductor switch emitter of the described second band anti-paralleled diode, the other end of the other end of first described electric capacity and described second electric capacity links together as the input of described voltage source half-bridge inversion circuit electric capacity brachium pontis, the semiconductor switch emitter of the first described band anti-paralleled diode connects together the input as voltage source half-bridge inversion circuit semiconductor switch brachium pontis with the semiconductor switch collector electrode of the described second band anti-paralleled diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410790652.XA CN104538974B (en) | 2014-12-17 | 2014-12-17 | A kind of phase three-wire three dynamic voltage compensator in series type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410790652.XA CN104538974B (en) | 2014-12-17 | 2014-12-17 | A kind of phase three-wire three dynamic voltage compensator in series type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104538974A true CN104538974A (en) | 2015-04-22 |
| CN104538974B CN104538974B (en) | 2016-09-14 |
Family
ID=52854466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410790652.XA Active CN104538974B (en) | 2014-12-17 | 2014-12-17 | A kind of phase three-wire three dynamic voltage compensator in series type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104538974B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659793A (en) * | 2015-03-06 | 2015-05-27 | 云南电网有限责任公司电力科学研究院 | Novel series compensation device for power distribution network |
| CN105141147A (en) * | 2015-10-16 | 2015-12-09 | 成都天兴电气有限公司 | Ultra-wide input voltage isolation power supply and method |
| CN107910868A (en) * | 2017-12-10 | 2018-04-13 | 国网福建华安县供电有限公司 | Outdoor series voltage quality regulating device |
| CN108092271A (en) * | 2017-12-15 | 2018-05-29 | 河南工业职业技术学院 | Phase three-wire three series type dynamic voltage compensation device |
| CN108859873A (en) * | 2018-06-14 | 2018-11-23 | 中车大连机车车辆有限公司 | Safe negative pole device in one-way on state with fault diagnosis functions |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005069470A1 (en) * | 2004-01-14 | 2005-07-28 | Euicheol Nho | Sag-swell and outage generator for performance test of custom power devices |
| CN202076805U (en) * | 2011-06-13 | 2011-12-14 | 思源清能电气电子有限公司 | Compensating device for assisting wind generating set with low voltage ride through |
| CN102299523A (en) * | 2011-08-23 | 2011-12-28 | 武汉钢铁(集团)公司 | Dynamic voltage restorer for three-phase four-line system power distribution network |
| CN202260481U (en) * | 2011-08-23 | 2012-05-30 | 武汉钢铁(集团)公司 | Dynamic voltage restorer for three-phase four-wire system distribution network |
| CN202678975U (en) * | 2012-05-04 | 2013-01-16 | 深圳市理工新能源有限公司 | Dynamic voltage compensator |
| CN204391753U (en) * | 2014-12-17 | 2015-06-10 | 刘文华 | A kind of phase three-wire three dynamic voltage compensator in series type |
-
2014
- 2014-12-17 CN CN201410790652.XA patent/CN104538974B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005069470A1 (en) * | 2004-01-14 | 2005-07-28 | Euicheol Nho | Sag-swell and outage generator for performance test of custom power devices |
| CN202076805U (en) * | 2011-06-13 | 2011-12-14 | 思源清能电气电子有限公司 | Compensating device for assisting wind generating set with low voltage ride through |
| CN102299523A (en) * | 2011-08-23 | 2011-12-28 | 武汉钢铁(集团)公司 | Dynamic voltage restorer for three-phase four-line system power distribution network |
| CN202260481U (en) * | 2011-08-23 | 2012-05-30 | 武汉钢铁(集团)公司 | Dynamic voltage restorer for three-phase four-wire system distribution network |
| CN202678975U (en) * | 2012-05-04 | 2013-01-16 | 深圳市理工新能源有限公司 | Dynamic voltage compensator |
| CN204391753U (en) * | 2014-12-17 | 2015-06-10 | 刘文华 | A kind of phase three-wire three dynamic voltage compensator in series type |
Non-Patent Citations (1)
| Title |
|---|
| 赵剑锋 等: "基于电压型逆变器的可连续运行的动态电压恢复器(UDVR)的研究", 《电工技术学报》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659793A (en) * | 2015-03-06 | 2015-05-27 | 云南电网有限责任公司电力科学研究院 | Novel series compensation device for power distribution network |
| CN105141147A (en) * | 2015-10-16 | 2015-12-09 | 成都天兴电气有限公司 | Ultra-wide input voltage isolation power supply and method |
| CN105141147B (en) * | 2015-10-16 | 2017-06-09 | 成都天兴电气有限公司 | The insulating power supply and method of a kind of ultra-wide input voltage |
| CN107910868A (en) * | 2017-12-10 | 2018-04-13 | 国网福建华安县供电有限公司 | Outdoor series voltage quality regulating device |
| CN108092271A (en) * | 2017-12-15 | 2018-05-29 | 河南工业职业技术学院 | Phase three-wire three series type dynamic voltage compensation device |
| CN108092271B (en) * | 2017-12-15 | 2018-09-28 | 河南工业职业技术学院 | Phase three-wire three series type dynamic voltage compensation device |
| CN108859873A (en) * | 2018-06-14 | 2018-11-23 | 中车大连机车车辆有限公司 | Safe negative pole device in one-way on state with fault diagnosis functions |
| CN108859873B (en) * | 2018-06-14 | 2022-04-08 | 中车大连机车车辆有限公司 | Safe negative pole one-way conduction device with fault diagnosis function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104538974B (en) | 2016-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109842287B (en) | PFC circuit compatible with single-phase and three-phase alternating-current input and control method thereof | |
| US20210061114A1 (en) | On-board charging and discharging system | |
| US20180269795A1 (en) | Bidirectional resonant conversion circuit and converter | |
| CN204886704U (en) | High -power switching power supply circuit and have high -voltage inverter of this circuit | |
| CN103081324A (en) | AC-AC converter | |
| CN104538974A (en) | Three-phase three-wire series connection type dynamic voltage compensator | |
| CN104638940A (en) | Modular multi-level power electronic transformer based on cascading | |
| US20140376293A1 (en) | Parallelable three-phase photovoltaic power converter | |
| CN104201927B (en) | Single-stage coupling inductance ZETA reactive power inverter | |
| CN103856095A (en) | Full-bridge current-source high-frequency isolation-type three-level inverter | |
| CN103427658A (en) | High-voltage DC-DC conversion device based on multi-winding transformer | |
| CN104009658A (en) | Power conversion circuit and power conversion system | |
| TW201703417A (en) | Five-level converting device | |
| CN102496932A (en) | Parallel voltage sag compensation device | |
| CN104716855A (en) | Current-type quasi-impedance source inverter with two-way power flow | |
| CN204391751U (en) | A kind of three-phase and four-line parallel connection type dynamic voltage compensator | |
| CN109672346A (en) | Power conversion unit and secondary power system | |
| CN204794089U (en) | Three -way and four -wire tandem type developments voltage compensation ware of three -phase | |
| CN104682395A (en) | Comprehensive power quality controller | |
| CN204391753U (en) | A kind of phase three-wire three dynamic voltage compensator in series type | |
| CN107482892B (en) | Energy buffer circuit and converter | |
| CN202696465U (en) | Power device driving power supply for multilevel converter and high voltage frequency converter | |
| CN104167946A (en) | Midpoint clamping type single-phase non-isolated photovoltaic inverter main circuit topology with follow current switch | |
| CN204928610U (en) | Single -phase non - isolated form photovoltaic grid -connected inverter | |
| CN210327378U (en) | Current conversion circuit and charging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170526 Address after: 100084 west main building, Tsinghua University, Haidian District two, district 102, Beijing Co-patentee after: BEIJING SINEWELL CONVERTER TECHNOLOGY CO.,LTD. Patentee after: Liu Wenhua Address before: 100084 west main building, Tsinghua University, Haidian District two, district 102, Beijing Patentee before: Liu Wenhua |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180606 Address after: 100085 floor 107, 2 Building 1, seven street, Haidian District, Beijing. Patentee after: BEIJING QINGTE TECHNOLOGY CENTER (LIMITED PARTNERSHIP) Address before: 100084 two district 102, west main building, Tsinghua University, Haidian District, Beijing Co-patentee before: BEIJING SINEWELL CONVERTER TECHNOLOGY CO.,LTD. Patentee before: Liu Wenhua |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221123 Address after: Room 310, 3rd Floor, Building 5, Yard 1, Nongda South Road, Haidian District, Beijing 100085 Patentee after: BEIJING SINEWELL CONVERTER TECHNOLOGY CO.,LTD. Address before: 100085 floor 107, 2 Building 1, seven street, Haidian District, Beijing. Patentee before: BEIJING QINGTE TECHNOLOGY CENTER (LIMITED PARTNERSHIP) |
|
| TR01 | Transfer of patent right |