CN104753015B - Ice-melting device for transmission line - Google Patents
Ice-melting device for transmission line Download PDFInfo
- Publication number
- CN104753015B CN104753015B CN201510181606.4A CN201510181606A CN104753015B CN 104753015 B CN104753015 B CN 104753015B CN 201510181606 A CN201510181606 A CN 201510181606A CN 104753015 B CN104753015 B CN 104753015B
- Authority
- CN
- China
- Prior art keywords
- voltage source
- phase
- diode rectifier
- rectifier bridge
- ice
- 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.)
- Active
Links
- 238000002844 melting Methods 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 title claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 27
- 230000005611 electricity Effects 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Classifications
-
- 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 invention discloses a kind of ice-melting device for transmission line, the device includes transformator and diode rectifier bridge, also include three-phase voltage source unsteady flow and exchange output filter, the vice-side winding of the transformator is coupled with three ac input ends of the three-phase alternating current outfan and diode rectifier bridge of three-phase voltage source unsteady flow and exchange output filter, the three-phase voltage source unsteady flow and exchange output filter are mainly made up of three-phase voltage source convertor circuit and three-phase filter circuit, for the harmonic current that compensation diode rectifier bridge to three-phase voltage source unsteady flow and when deicing device runs on ice-melt mode is produced, dynamic passive compensation is constantly run in not ice-melt, to improve the utilization rate of ice-melt transformator.
Description
Technical field
The present invention relates to electrical engineering technical field, and in particular to a kind of melting with active reactive-load compensation and filter function
Ice production apparatus.
Background technology
When there is frost accident in the winter time, transmission line of electricity needs to inject transmission line of electricity a certain size using deicing device
Electric current makes transmission line of electricity heating and then melts frost, and deicing device typically adopts direct voltage output, its output to be connected to ice-melt line
Road two ends, the size for adjusting VD is the size of electric current in scalable transmission line of electricity.In order to ensure deicing device
High reliability, prior art typically realize the straight of deicing device using step-down transformer and diode rectifier as deicing device
Stream power supply output.But there is following defect in the structure deicing device：Defect one, deicing device produce larger harmonic wave electricity when running
Stream, device input side need the filter for increasing certain capacity；Defect two, deicing device utilization rate are low, input fortune in 1 year
Row use time is little, if circuit does not have serious icing, deicing device really may make all without input 1 year even several years
With causing deicing device to be left unused in transformer station all the year round.Therefore, for the structure deicing device feature, and transformer station's function is combined
Demand, high in the urgent need to carrying out little operation harmonic wave, simple structure, operational reliability, and melting for utilization ratio of device can be effectively improved
Ice production apparatus.
Content of the invention
The purpose of the present invention aims to provide a kind of ice-melting device for transmission line that can effectively improve transformer utilization factor.
This ice-melting device for transmission line that the present invention is provided includes transformator and diode rectifier bridge, also includes three-phase electricity
Potential source unsteady flow and exchange output filter, the vice-side winding of transformator are coupled with three-phase voltage source unsteady flow and exchange output filtering
Three ac input ends of the three-phase alternating current outfan and diode rectifier bridge of device, the three-phase voltage source unsteady flow and exchange output
Wave filter is mainly made up of three-phase voltage source convertor circuit and three-phase filter circuit, for three-phase voltage source unsteady flow and in ice-melt
Plant running compensates the harmonic current of diode rectifier bridge generation when ice-melt mode, constantly runs on dynamic reactive in not ice-melt
Compensation.
The transformator is three-winding transformer, and one of winding is three-phase primary side winding, and another two winding is three
Phase vice-side winding, corresponding three-phase voltage source unsteady flow and exchange output filter and diode rectifier bridge also have two groups respectively,
First three-phase vice-side winding be coupled with the three-phase alternating current outfan of first group of voltage source unsteady flow and exchange output filter and
Three ac input ends of first group of diode rectifier bridge, second three-phase vice-side winding are coupled with second group of voltage source unsteady flow
And three ac input ends of the three-phase alternating current outfan and second group of diode rectifier bridge of exchange output filter, first group two
The negative pole of pole pipe rectifier bridge terminates to the positive terminal of second group of diode rectifier bridge, and the positive terminal of first group of diode rectifier bridge is made
It is connected to by one end of DC ice-melting for positive output end, the negative pole end of second group of diode rectifier bridge is connected to as negative output terminal and is melted
The other end of ice circuit.The diode rectifier bridge is three phase full bridge diode rectifier bridge.The three-phase voltage source unsteady flow and friendship
Stream output filter is two level three-phase voltage source unsteady flows and exchange output filter or is three-level three-phase voltage source unsteady flow
And exchange output filter or for many level three-phase voltage source unsteady flows of chain type and exchange output filter circuit.
The present invention makes ice-melt due to increased three-phase voltage source unsteady flow and exchange output filter in prior art basis
Device is provided with active reactive-load compensation and filter function, when deicing device runs on ice-melt mode, three-phase voltage source unsteady flow and
The harmonic current that exchange output filter compensation diode rectifier bridge is produced, makes these harmonic currents not flow into transformer secondary
Winding；When device need not run on ice-melt mode, diode rectifier bridge quits work, and three-phase voltage source unsteady flow and exchange are defeated
Go out wave filter and run on dynamic passive compensation pattern, so as to improve the utilization rate of ice-melt transformator.
Description of the drawings
Fig. 1 is the circuit block diagram of the present invention.
Fig. 2 is the circuit diagram of the first embodiment of the invention.
Fig. 3 is the circuit diagram of second embodiment of the invention.
Fig. 4 is the circuit diagram of the third embodiment of the invention.
Specific embodiment
Embodiment one：The present invention includes transformator 1 and diode rectifier bridge as can be seen from Figure 1（4、5）, also include three
Phase voltage source unsteady flow and exchange output filter（2、3）, diode rectifier bridge（4、5）Using three phase full bridge diode rectifier bridge,
Transformator 1 adopts three-winding transformer, and wherein in three-winding transformer a winding is three-phase primary side winding, another two winding
It is three-phase vice-side winding, corresponding three-phase voltage source unsteady flow and exchange output filter（2、3）, diode rectifier bridge（4、5）
Also there are two groups respectively, the former limit A/B/C wiring of transformator 1 terminates to three-phase alternating-current supply, first three-phase secondary of transformator 1
Winding is coupled with the three-phase alternating current outfan U1/V1/W1 and the of first group of three-phase voltage source unsteady flow and exchange output filter 2
Three ac input end A1/B1/C1 of one group of diode rectifier bridge 4, second three-phase vice-side winding of transformator 1 are coupled with
The three-phase alternating current outfan U2/V2/W2 and second group of diode of second group of three-phase voltage source unsteady flow and exchange output filter 3 is whole
Three ac input end A2/B2/C2 of stream bridge 5, the negative pole of first group of three phase full bridge diode rectifier bridge 4 terminate to second group two
The positive terminal of pole pipe rectifier bridge 5, the positive output of the positive terminal DC1+ of first group of diode rectifier bridge 4 as deicing device of the present invention
End DC+ is connected to by one end of DC ice-melting, and the negative pole end DC2- of second group of diode rectifier bridge 5 is used as deicing device of the present invention
Negative output terminal DC- is connected to by the other end of DC ice-melting.
For wave filter described in two groups（2、3）And the diode rectifier bridge（4、5）For be used in same embodiment
Middle composition is identical, is simply connected on two vice-side windings.One of which three-phase voltage source unsteady flow is used below
And exchange the circuit diagram of output filter 2 and diode rectifier bridge 4 their composition is described, referring to Fig. 2.Can from the figure
The three-phase voltage source unsteady flow and exchange output filter for going out present embodiment is two level, and there is structure using two level blocks
Simply, required electric power electronic devices and components（Such as igbt-IGBT）Less the features such as, but due to single power electronics
Device needs to bear high voltage, it is impossible to be directly realized by high voltage output, when transformer output voltage higher（It is more than 1000V）
When, it is necessary to step-down transformer and booster transformer is introduced, causes equipment to complicate.When the output voltage is low, this is preferably adopted
Structure.
Embodiment two：Different from embodiment one for present embodiment it is its three-phase voltage source unsteady flow and friendship
Stream output filter is three level, and compared with embodiment one, by power electronic devices series connection, which can realize that high pressure is defeated
Go out, without the need for additionally increasing step-down transformer and booster transformer, but working as needs output reactive capability larger (more than 1000kvar)
When, it is necessary to introduce power electric component parallel connection and realize High-current output, and carry out simultaneously power electronic devices series connection with simultaneously
Connection is a difficult point, is also easily reduced the reliability of plant running.When output voltage higher, and capacity less appropriate to the occasion using this knot
Structure.
Embodiment three：Different from embodiment one for present embodiment it is its three-phase voltage source unsteady flow and friendship
Stream output filter is many level of chain type, using low-voltage power electronic device group success rate module, is connected by power model
Can realize that high pressure is exported with big reactive capability.When output voltage is higher, and capacity is larger appropriate to the occasion using this structure.
Claims (3)
1. a kind of ice-melting device for transmission line, including transformator (1) and diode rectifier bridge（4、5）, it is characterised in that also include
Two groups of three-phase voltage source unsteady flows and exchange output filter (2,3), the vice-side winding of the transformator are coupled with the three-phase
Voltage source unsteady flow and the three-phase alternating current outfan and diode rectifier bridge of exchange output filter (2,3)（4、5）Three exchange
Input, the diode rectifier bridge are two three phase full bridge diode rectifier bridges, for realizing DC ice melting, the three-phase electricity
Potential source unsteady flow and exchange output filter be mainly made up of three-phase voltage source convertor circuit, for three-phase voltage source unsteady flow and
Filter action is played in ice-melt, is compensated the harmonic current that diode rectifier bridge is produced, is run on dynamic passive compensation in not ice-melt.
2. ice-melting device for transmission line according to claim 1, it is characterised in that the transformator is three-winding transformer, its
In winding be three-phase primary side winding, another two winding is three-phase vice-side winding, corresponding three-phase voltage source unsteady flow and friendship
Stream output filter (2,3) and diode rectifier bridge（4、5）Also there are two groups respectively, first three-phase vice-side winding is coupled with
First group of voltage source unsteady flow and exchange output filter（2）Three-phase alternating current outfan and first group of diode rectifier bridge（4）'s
Three ac input ends, second three-phase vice-side winding are coupled with second group of voltage source unsteady flow and exchange output filter（3）
Three-phase alternating current outfan and second group of diode rectifier bridge（5）Three ac input ends, first group of diode rectifier bridge（4）
Negative pole terminate to second group of diode rectifier bridge（5）Positive terminal, first group of diode rectifier bridge（4）Positive terminal as just
Output is terminated to by one end of DC ice-melting, second group of diode rectifier bridge（5）Negative pole end be connected to as negative output terminal and melted
The other end of ice circuit.
3. ice-melting device for transmission line according to claim 1 or claim 2, it is characterised in that the three-phase voltage source unsteady flow and exchange
Output filter be two level three-phase voltage source unsteady flows and exchange output filter or for three-level three-phase voltage source unsteady flow and
Exchange output filter or for many level three-phase voltage source unsteady flows of chain type and exchange output filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510181606.4A CN104753015B (en) | 2015-04-16 | 2015-04-16 | Ice-melting device for transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510181606.4A CN104753015B (en) | 2015-04-16 | 2015-04-16 | Ice-melting device for transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104753015A CN104753015A (en) | 2015-07-01 |
| CN104753015B true CN104753015B (en) | 2017-03-15 |
Family
ID=53592297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510181606.4A Active CN104753015B (en) | 2015-04-16 | 2015-04-16 | Ice-melting device for transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104753015B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684795A (en) * | 2015-11-10 | 2017-05-17 | 云南电网有限责任公司昭通供电局 | Direct current deicing apparatus based on three-phase bridge type full-control structure |
| CN108288859B (en) * | 2018-01-09 | 2022-01-25 | 国电南京自动化股份有限公司 | Asymmetric isolated type dual serial regenerative braking energy feedback device and control method |
| CN112671256B (en) * | 2020-12-26 | 2023-12-15 | 张卓凡 | Transformer integrated multi-level battery energy storage power conversion device |
| CN113451974A (en) * | 2021-08-09 | 2021-09-28 | 河南卫华重型机械股份有限公司 | Modular trolley line alternating-current ice melting controller |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2376692C1 (en) * | 2008-06-09 | 2009-12-20 | Открытое акционерное общество "Научно-исследовательский институт по передаче электроэнергии постоянным током высокого напряжения" (ОАО "НИИПТ") | Combined plant for glase ice and reactive power compensation |
| CN201590771U (en) * | 2009-06-18 | 2010-09-22 | 江西省电力科学研究院 | Multipurpose large-power controllable power source |
| CN102496898A (en) * | 2011-11-16 | 2012-06-13 | 四川大学 | Bifunctional direct current ice melting apparatus based on voltage source type current converter and ice melting method thereof |
| CN104037701A (en) * | 2014-06-23 | 2014-09-10 | 江苏有能新能源有限公司 | DC (Direct Current)-based deicing and SVG (Static Var Generator) device capable of reducing capacity of transformer |
| CN204481445U (en) * | 2015-04-16 | 2015-07-15 | 国家电网公司 | Ice-melting device for transmission line |
-
2015
- 2015-04-16 CN CN201510181606.4A patent/CN104753015B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104753015A (en) | 2015-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104753015B (en) | Ice-melting device for transmission line | |
| CN201590771U (en) | Multipurpose large-power controllable power source | |
| CN102642481B (en) | Electricity energy regulating-ice melting device and method for railway traction network | |
| CN106374830B (en) | High-power high step-up ratio photovoltaic DC converter device and control method | |
| CN103269083B (en) | Multi-terminal high-voltage direct-current power transmission system | |
| CN104022630B (en) | A kind of multi-functional mixed type tractive power supply system and control method | |
| CN206294085U (en) | The arrangement of metal-oxide-semiconductor in new-energy automobile power driver module | |
| CN204481445U (en) | Ice-melting device for transmission line | |
| CN107359579A (en) | Based on the complementary intensive DC de-icing device of SVG and diode rectifier | |
| CN107039980A (en) | A kind of HVDC flow controller | |
| CN207320834U (en) | A kind of circuit topological structure of alternating current-direct current mixing distribution system | |
| CN201980097U (en) | Power regulation and de-icing device for railway traction net | |
| WO2023010651A1 (en) | Current source-type controllable direct-current current source ice-melting circuit and apparatus | |
| CN104037754B (en) | A kind of modular multi-level flexible direct current topological circuit being applicable to fault traversing | |
| CN205992854U (en) | A kind of soft starting circuit and electrical equipment | |
| CN102738820A (en) | Power transmission system for improving transmission capability of alternating-current circuit through using voltage source current converting technology | |
| CN108092182A (en) | Ultra-high-tension power transmission line is segmented de-icing method and system | |
| CN106992534A (en) | A kind of Modularized parallel redundant railway power line cleaner | |
| CN206640304U (en) | Multifunctional short circuit demand limiter | |
| CN102412571A (en) | Bus short circuit current limiter for parallel compensation power grid | |
| CN206650506U (en) | A kind of wireless take based on electric railway equipment can low voltage electric power system | |
| CN206541712U (en) | A kind of filter inductance for IGBT parallel current-equalizing circuits | |
| CN109217753A (en) | A kind of topological structure and control method of alternating current-direct current electricity generation system | |
| CN208337114U (en) | Power grid arragement construction and system based on ice-melt function | |
| CN204065337U (en) | A kind of converter valve bridge arm forms the device of equipotential body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 |