CN206908255U - The intensive DC de-icing device topological structure of wind power plant - Google Patents
The intensive DC de-icing device topological structure of wind power plant Download PDFInfo
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- CN206908255U CN206908255U CN201720891186.3U CN201720891186U CN206908255U CN 206908255 U CN206908255 U CN 206908255U CN 201720891186 U CN201720891186 U CN 201720891186U CN 206908255 U CN206908255 U CN 206908255U
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- 238000004804 winding Methods 0.000 claims abstract description 78
- 238000002844 melting Methods 0.000 claims abstract description 17
- 230000007935 neutral effect Effects 0.000 claims description 9
- 230000009466 transformation Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- 230000005684 electric field Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008018 melting Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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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 discloses a kind of wind power plant with intensive DC de-icing device topological structure, including three winding ice-melt transformer, connection in series-parallel disconnecting link and two groups of dynamic passive compensation units, the three winding of three winding ice-melt transformer includes primary side winding and two vice-side windings, dynamic passive compensation unit includes two SVG being arranged in parallel, the primary side winding of ice-melt transformer is connected with power network, vice-side winding is connected with two SVG of Different Dynamic reactive compensation unit respectively, input of each SVG output end respectively with connection in series-parallel disconnecting link is connected, the output end of connection in series-parallel disconnecting link is with treating that DC ice-melting is connected.The utility model can realize the multi-functional outputs of wind power plant standard configuration dynamic reactive compensation device SVG, usually it is used for wind farm voltage and reactive power compensation, it is used for line ice-melting during dry monsoon electrical field line icing, with a wide range of current regulation ability, meet that line style differs greatly different line ice-melting demands, wind power plant line ice-melting capacity requirement is disclosure satisfy that, and floor space is small, construction cost is low.
Description
Technical field
It the utility model is related to electrical engineering technology, and in particular to a kind of wind power plant intensive DC de-icing device topology
Structure.
Background technology
In recent years, in the dual-pressure that energy-output ratio increases rapidly, price is constantly high and global ecological environment deteriorates
Under, utilization renewable new energy has all been put into critical positions by countries in the world.In numerous regenerative resources, wind energy is with it
Huge superiority and potentiality to be exploited is favored by people, and wind-power electricity generation is also quickly grown, and turning into one has powerful life
The industry of power.THE WIND ENERGY RESOURCES IN CHINA very abundant, calculated using the wind speed of 10 meters of height, land wind energy resource theory reserves are
32.26 hundred million kilowatts, actual exploitable resources are 2.53 hundred million kilowatts, and Construction of Wind Power is just being opened up in high gear in China each province
Open.Construction of Wind Power addressing is general all in the higher area of high mountain or height above sea level, and the Guizhou in China, Hunan, Hubei etc. are southernly
Area's ice disaster takes place frequently, and wind power plant transmission line of electricity is more subject to icing disaster, causes the broken string of falling tower, and serious threat is defeated to wind power plant
Electric line safe and stable operation and power supply reliability.
In order to improve the ability of transmission line of electricity resistance ice damage, domestic more units have developed the DC ice melting dress of Multiple Type
Put, provide solid technical guarantee for power network Winter safety stable operation, but existing deicing device is mainly for major network or agriculture
Net transmission line of electricity, it is impossible to be applied to wind power plant transmission line de-icing very well, existing deicing device is primarily present problems with：Problem
1, DC ice-melting line style is relatively more unified or close, and wind power plant collection electric line and submitting circuit line style differ greatly, and gives ice-melt to fill
Put a wide range of current regulation ability and propose requirements at the higher level；Problem 2, major network deicing device capacity is bigger than normal, and rural power grids deicing device
Capacity is less than normal, can not meet wind power plant transmission line de-icing demand；Problem 3, existing deicing device construction floor space is bigger than normal,
And the universal floor space of wind power plant is smaller, it is difficult to meet existing deicing device construction land demand；Problem 4, existing deicing device
Construction cost is higher, it is difficult in the wind power plant popularization and application as electricity power enterprise.Therefore, for wind power plant ice-melt feature, urgently
Need to carry out the DC de-icing device research suitable for wind power plant.
Utility model content
The technical problems to be solved in the utility model is：For the above mentioned problem of prior art, there is provided one kind utilizes wind-powered electricity generation
Two SVG dynamic reactive compensation devices of field standard configuration realize that ice-melt DC current exports, and can be the knot of wind power plant deicing device
Structure designs to provide with final development and instructs, effectively to solve the problems, such as wind power plant ice-melt, to be widely portable to the wind of ice-melt demand
Electric field, there is a wide range of current regulation ability, capacity to meet wind power plant ice-melt demand, the wind that floor space is small, construction cost is low
The intensive DC de-icing device topological structure of electric field.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of intensive DC de-icing device topological structure of wind power plant, including three winding ice-melt transformer, connection in series-parallel knife
Lock and two groups of dynamic passive compensation units, the three winding of the three winding ice-melt transformer include primary side winding and two secondary around
Group, the dynamic passive compensation unit include two SVG being arranged in parallel, the primary side winding and power network phase of the ice-melt transformer
Even, vice-side winding is connected with two SVG of Different Dynamic reactive compensation unit respectively, and each SVG output end is respectively with going here and there simultaneously
The input of connection disconnecting link is connected, and the output end of the connection in series-parallel disconnecting link is with treating that DC ice-melting is connected.
Preferably, the SVG is cascaded and formed successively by multiple power models, and the input of two SVG and ice-melt become
The vice-side winding of depressor is connected, output end three-phase short circuit forms neutral point, each SVG neutral point output end respectively with connection in series-parallel
The input of disconnecting link is connected.
Preferably, the three winding ice-melt transformer is three winding 12 pulsating wave ice-melt transformer.
Preferably, in two vice-side windings of the three winding ice-melt transformer, the mode of connection of a vice-side winding is
Y0, another vice-side winding the mode of connection be D11, the output voltage difference of two vice-side windings is no more than 0.25%.
Preferably, the three winding 12 pulsating wave ice-melt transformer uses Low ESR wide-voltage-regulation rectifier transformer, transformer
Impedance ranges：6% to 12%, transformer regulating scope：20% to 100%.
Preferably, it is in not between each winding of low-pressure side of the three winding ice-melt transformer and between each winding and transformer core
It is uniformly distributed.
Wind power plant of the present utility model is had the advantage that with intensive DC de-icing device topological structure tool：
1st, the multi-functional outputs of wind power plant standard configuration dynamic reactive compensation device SVG are realized, usually for wind power plant voltage power-less
Compensation, during dry monsoon electrical field line icing, for line ice-melting；
2nd, there is a wide range of current regulation ability, meet that line style differs greatly different line ice-melting demands；
3rd, wind power plant line ice-melting capacity requirement is met, and floor space is small, construction cost is low, has been widely portable to melt
The wind power plant of ice demand.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the SVG structural representations in the utility model embodiment.
Fig. 3 is the Low ESR wide-voltage-regulation rectifier transformer winding distribution schematic diagram in the utility model embodiment.
Embodiment
As shown in Fig. 1, the wind power plant of the present embodiment includes three winding ice-melt with intensive DC de-icing device topological structure
Transformer 1, connection in series-parallel disconnecting link 2 and two groups of dynamic passive compensation units 3, the three winding of three winding ice-melt transformer 1 include primary side
Winding and two vice-side windings, dynamic passive compensation unit 3 include two SVG being arranged in parallel（Dynamic reactive compensation device）,
The primary side winding and power network of ice-melt transformer 1 are connected, vice-side winding two SVG with Different Dynamic reactive compensation unit 3 respectively
It is connected, the input of each SVG output end respectively with connection in series-parallel disconnecting link 2 is connected, and the output end of connection in series-parallel disconnecting link 2 and treats ice-melt
Circuit is connected.The present embodiment can functionally be divided into DC ice melting transformation system（Three winding ice-melt transformer 1）With dynamic nothing
Work(compensation system（Connection in series-parallel disconnecting link 2 and two groups of dynamic passive compensation units 3）, three winding 12 pulsating wave ice-melt transformer inputs
Give a dinner for a visitor from afar electric field 10kV ac bus, the three-phase windings of output end two connect two groups of dynamics respectively after 10kV high pressures are depressured by ice-melt transformer
Two SVG inputs of reactive compensation unit 3, two groups of dynamic passive compensation units 3 include SVG#1, SVG#2, SVG#3, SVG#4
Totally 4 SVG, first group of dynamic passive compensation unit 3 are made up of SVG#1, SVG#2, second group of dynamic passive compensation unit 3 by
SVG#3, SVG#4 are formed, and SVG#1, SVG#2, SVG#3, SVG#4 output end connect the input of connection in series-parallel disconnecting link 2 respectively, and string is simultaneously
Connection disconnecting link 2 can realize that SVG#1, SVG#2, SVG#3, SVG#4 export the serial or parallel connection output of two groups of DC currents, connection in series-parallel
The output end reception DC ice-melting of disconnecting link 2, DC current of the output with a wide range of current regulation ability, meets wind power plant circuit
Ice-melt requirement.
As shown in Fig. 2 SVG is by multiple power models（Power model #1, power model #2 ..., power model #N）According to
Secondary cascade is formed, and two SVG input is connected with the vice-side winding of ice-melt transformer, output end three-phase short circuit forms neutrality
Point, the input of each SVG neutral point output end respectively with connection in series-parallel disconnecting link 2 are connected.SVG every phase input and three winding
The three-phase output end of the vice-side winding of ice-melt transformer 1 is respectively connected with, and is neutral point per phase output terminal three-phase short circuit, and SVG is run
When reactive-load compensation pattern, central point is hanging；When running on DC ice melting pattern, neutral point output as DC voltage electrode or
Negative pole.
As shown in figure 3, each winding of low-pressure side of three winding ice-melt transformer 1（#5、#6、#7）Between and each winding and transformer
It is in uneven distribution between iron core, meets ice-melt transformer Low ESR wide-voltage-regulation demand.
In the present embodiment, three winding ice-melt transformer 1 is three winding 12 pulsating wave ice-melt transformer.
As shown in figure 1, the three winding of three winding ice-melt transformer 1 includes primary side winding and star winding, delta windings
Two vice-side windings, in two vice-side windings of three winding ice-melt transformer 1, the mode of connection of a vice-side winding is Y0, it is another
The mode of connection of one vice-side winding is D11, the output voltage difference of two vice-side windings is no more than 0.25%.
In the present embodiment, three winding 12 pulsating wave ice-melt transformer uses Low ESR wide-voltage-regulation rectifier transformer, transformer
Impedance ranges：6% to 12%, transformer regulating scope：20% to 100%, it is possible to achieve more gear voltage outputs；SVG#1、SVG#2、
SVG#3, SVG#4 can realize the reactive-load compensation of wind power plant busbar voltage or export DC current by SVG central points.
In the present embodiment, the pulse wave transformer of RBYQ-10kV-5kV types 12 of the use of three winding ice-melt transformer 1, connection in series-parallel
Disconnecting link 2 uses commercially available CBPDZ-10kV types disconnecting link.
The wind power plant of the present embodiment is as follows with the operation principle of intensive DC de-icing device topological structure：Three winding ice-melt
Transformer 1 exports after 10kV high pressures are depressured, when dynamic passive compensation mode is run, SVG#1, SVG#2, SVG#3, SVG#4
It is connected by three winding ice-melt transformer 1 with power network line, realizes dynamic passive compensation；When ice-melting mode is run, SVG#1,
SVG#2 exports a DC current by respective neutral point, and SVG#3, SVG#4 export another DC current by respective neutral point,
Two DC currents are realized by connection in series-parallel disconnecting link to be exported after serial or parallel connection to treating that DC ice-melting implements DC ice melting.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (6)
- A kind of 1. intensive DC de-icing device topological structure of wind power plant, it is characterised in that：Including three winding ice-melt transformer （1）, connection in series-parallel disconnecting link（2）With two groups of dynamic passive compensation units（3）, the three winding ice-melt transformer（1）Three winding bag Include primary side winding and two vice-side windings, the dynamic passive compensation unit（3）It is described to melt including two SVG being arranged in parallel Ice transformer（1）Primary side winding and power network be connected, vice-side winding respectively with Different Dynamic reactive compensation unit（3）Two SVG is connected, each SVG output end respectively with connection in series-parallel disconnecting link（2）Input be connected, the connection in series-parallel disconnecting link（2）It is defeated Go out end with treating that DC ice-melting is connected.
- 2. the intensive DC de-icing device topological structure of wind power plant according to claim 1, it is characterised in that：It is described SVG is cascaded and formed successively by multiple power models, the input of two SVG is connected with the vice-side winding of ice-melt transformer, Output end three-phase short circuit forms neutral point, each SVG neutral point output end respectively with connection in series-parallel disconnecting link（2）Input phase Even.
- 3. the intensive DC de-icing device topological structure of wind power plant according to claim 1 or 2, it is characterised in that：Institute State three winding ice-melt transformer（1）For three winding 12 pulsating wave ice-melt transformer.
- 4. the intensive DC de-icing device topological structure of wind power plant according to claim 3, it is characterised in that：Described three Winding ice-melt transformer（1）Two vice-side windings in, the mode of connection of a vice-side winding is Y0, another vice-side winding The mode of connection is D11, the output voltage difference of two vice-side windings is no more than 0.25%.
- 5. the intensive DC de-icing device topological structure of wind power plant according to claim 3, it is characterised in that：Described three Winding 12 pulsating wave ice-melt transformer uses Low ESR wide-voltage-regulation rectifier transformer, transformer impedance scope：6% to 12%, transformation Device range of regulation：20% to 100%.
- 6. the intensive DC de-icing device topological structure of wind power plant according to claim 1, it is characterised in that：Described three Winding ice-melt transformer（1）Each winding of low-pressure side between and each winding and transformer core between be in uneven distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720891186.3U CN206908255U (en) | 2017-07-21 | 2017-07-21 | The intensive DC de-icing device topological structure of wind power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720891186.3U CN206908255U (en) | 2017-07-21 | 2017-07-21 | The intensive DC de-icing device topological structure of wind power plant |
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| CN206908255U true CN206908255U (en) | 2018-01-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196262A (en) * | 2017-07-21 | 2017-09-22 | 国网湖南省电力公司 | Wind power plant intensive style DC de-icing device topological structure |
| CN110518536A (en) * | 2019-09-06 | 2019-11-29 | 国网湖南省电力有限公司 | Ice-melt short-circuit device for wind power plant collection electric line |
-
2017
- 2017-07-21 CN CN201720891186.3U patent/CN206908255U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196262A (en) * | 2017-07-21 | 2017-09-22 | 国网湖南省电力公司 | Wind power plant intensive style DC de-icing device topological structure |
| CN110518536A (en) * | 2019-09-06 | 2019-11-29 | 国网湖南省电力有限公司 | Ice-melt short-circuit device for wind power plant collection electric line |
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Granted publication date: 20180119 Termination date: 20210721 |