CN106099818A - ± 1100kV direct current exchanges same tower wire arrangements structure with double back 330kV - Google Patents
± 1100kV direct current exchanges same tower wire arrangements structure with double back 330kV Download PDFInfo
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- CN106099818A CN106099818A CN201610668714.9A CN201610668714A CN106099818A CN 106099818 A CN106099818 A CN 106099818A CN 201610668714 A CN201610668714 A CN 201610668714A CN 106099818 A CN106099818 A CN 106099818A
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- tower
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- double back
- direct current
- alternating current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers
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Abstract
Open one ± 1100kV the direct current of the present invention exchanges same tower wire arrangements structure with double back 330kV, and ± 1100kV DC wire is horizontally arranged, utilizes " V " type string to hang on steel tower top；Other twice 330kV exchange wire inverted triangle arrangement, above the design of biphase employing " IV " type string, below a phase use the design of " I " type string；Alternating current circuit inverted triangle is arranged, reduces by one layer of cross-arm；Use inverted triangle and anon-normal triangle can improve ground electric field intensity；Employing " IV " is gone here and there rather than " VV " string or " II " string can reduce cross-arm length, reduces tower weight, and the present invention has considered the factors such as line electricity magnetic environment, width of corridor and construction investment, the comprehensive benefit of acquirement maximum.
Description
[technical field]
The present invention relates to alternating current-direct current wiring on the same tower Line technology, be specifically related to one ± 1100kV direct current and double back 330kV
Exchange is with tower wire arrangements structure.
[background technology]
Alternating current-direct current with the wire arrangements of tower circuit need emphasis consider following key factor: 1) alternating current-direct current wiring on the same tower
After electromagnetic environment.Generally tower head size is the biggest, and wire division number is the most, diameter its electromagnetic environment the biggest is the best.2)
The width of corridor of circuit.The width of corridor of circuit depends on centre-to-centre spacing and the electric field intensity on ground of outermost side wire, vertically
Arrange general sideline minimum away from centre distance；Bottom phase conductor quantity the fewest ground field intensity is the lowest.3) construction investment.Circuit
Construction investment target may often be such that conflicting with the target of electromagnetic environment and width of corridor, and therefore alternating current-direct current is with the wire of tower circuit
Layout can not pursue the superior of certain single-phase index, need to obtain the whole machine balancing of indices.
Current domestic conventional multi-circuit lines on the same tower wire mostly is and is arranged vertically, and each phase conductor is symmetrically distributed in tower body two
Side, its advantage is that structural shape is simple, and width of corridor is little, and shortcoming is that electromagnetic environment is poor, and steel tower height is high, and construction investment is big.Also
Having voltage levels circuit above some multi-circuit lines on the same towers to use to be arranged vertically, lower section low-voltage-grade circuit uses gore
Putting, its advantage is to reduce steel tower height, and shortcoming is that wire is connected complexity with steel tower, and tower head size is big.How at conventional same tower
On the basis of multi circuit transmission lines wire arrangements, obtain electromagnetic environment, balance between width of corridor and construction investment three be hand over straight
Flow and arrange, with tower line conductor, the key problem that must solve.
[summary of the invention]
Present invention aim at proposing one ± 1100kV direct current and exchange same tower wire arrangements structure with double back 330kV,
While meeting line electricity magnetic environment, width of corridor requirement, reduce construction investment as far as possible, obtain maximum comprehensive benefit.
For achieving the above object, the present invention adopts the following technical scheme that
± 1100kV direct current exchanges same tower wire arrangements structure, ± 1100kV DC line phase conductor water with double back 330kV
Flat raft arranges, and uses " V " type string to be symmetrically arranged in steel tower top, double back 330kV alternating current circuit phase conductor inverted triangle symmetry cloth
It is placed in steel tower bottom；On every time 330kV alternating current circuit, two phase conductors employing " IV " are gone here and there to be connected with steel tower cross-arm and are positioned at steel tower middle level,
Under every time 330kV alternating current circuit, phase conductor uses I type insulator chain to be connected with steel tower cross-arm and be positioned at steel tower orlop.
Further, ± 1100kV DC line phase conductor minimum distance to the ground is 28m.
Further, minimum distance to the ground in 330kV alternating current circuit is 7.5m.
Further, " V " type string length is 17m.
± 1100kV DC line phase conductor is horizontally arranged, and " V " type string is symmetrically arranged in steel tower top；Double back
330kV alternating current circuit phase conductor inverted triangle is symmetrically arranged in steel tower bottom, has taken into full account that different electric pressure circuit is over the ground
Difference in terms of distance, insulation distance and tower head size, in the selection of ac and dc circuit lead location, gold utensil serial type, electromagnetic environment
It is optimized with aspects such as steel tower weight.
Further, owing to the 1100kV DC line phase conductor minimum distance to the ground in non-residential areas, the north is 28m,
The minimum distance to the ground of non-residential areas, 330kV alternating current circuit only has 7.5m, DC line to be positioned at above alternating current circuit can to reduce
Wire is to ground level.
Further, the insulator chain length about 17m of 1100kV DC line phase conductor, wire uses " V " type string layout side
Formula polar conductor can reduce 4m away from centre distance, and interfloor distance can reduce 4.5m；
330kV alternating current circuit phase conductor inverted triangle is arranged relatively to be arranged vertically and can be reduced by a layer conductor, steel tower height reduction
9m；Compared with arranging with positive triangle, distance to the ground can reduce about 1.5m, and the width of corridor that ground field intensity controls reduces 10m.
The present invention taken into full account ± 1100kV extra-high voltage direct-current and 330kV alternating current circuit be at distance to the ground, insulation distance
With the difference in terms of tower head size, ± 1100kV DC wire V string is horizontally disposed, and 330kV double back alternating current circuit inverted triangle is symmetrical
Arrange, between electromagnetic environment, width of corridor and construction investment three, obtain balance, there is good comprehensive benefit.
[accompanying drawing explanation]
Fig. 1 is the arrangement schematic diagram of the present invention；
Wherein: 1 is ± 1100kV DC line phase conductor；2 is two phase conductors on 330kV alternating current circuit；3 hand over for 330kV
Phase conductor under Flow Line.
[detailed description of the invention]
For enabling the feature and advantage of wire arrangements mode in the present invention to become apparent from understandable, below in conjunction with the accompanying drawings and tool
The present invention is further detailed explanation for body embodiment.
With reference to Fig. 1, described ± 1100kV direct current exchanges same tower wire arrangements structure and includes with double back 330kV: biphase ±
1100kV DC wire and 6 phases 330kV exchange wire.
Described ± 1100kV DC line phase conductor 1 is positioned at the steel tower the superiors, uses V-type insulator chain and steel tower cross-arm phase
Even, not only can reduce wire and away from centre distance but also interlamellar spacing can have been reduced.
Double back 330kV alternating current circuit phase conductor inverted triangle is symmetrically arranged in steel tower bottom；On every time 330kV alternating current circuit two
Phase conductor 2 uses " IV " string to be connected with steel tower cross-arm to be positioned at steel tower middle level, and under every time 330kV alternating current circuit, phase conductor 3 uses I type
Insulator chain is connected with steel tower cross-arm and is positioned at steel tower orlop, can compress between wire compared with conventional " II " string or " VV " string
Distance, the increase of steel tower cross-arm length will not be caused simultaneously.
Preferably, described 330kV double back alternating current circuit uses inverted triangle arrangement, not only decreases the cross-arm number of plies but also can change
Kind ground electric field distribution.
Preferably, 330kV exchanges two phase conductors and uses " IV " type string connected mode, while compression wire pitch as far as possible
The increase of steel tower cross-arm length will not be caused, thus reduce steel tower weight.
Described ± 1100kV direct current exchanges same tower wire arrangements structure and has filled up the same tower of domestic and international alternating current-direct current with double back 330kV
Line conductor and the blank of shaft tower pattern research.
± 1100kV DC line phase conductor is horizontally arranged, and " V " type string is symmetrically arranged in steel tower top；Double back
330kV alternating current circuit phase conductor inverted triangle is symmetrically arranged in steel tower bottom.1100kV DC line wire is in non-residential areas, the north
The minimum distance to the ground that minimum distance to the ground is 28m, 330kV non-residential areas, alternating current circuit only have 7.5m, 1100kV AC line
The insulator chain length about 17m of road phase conductor, wire uses " V " type string arrangement polar conductor can reduce 4m away from centre distance,
Interfloor distance can reduce 4.5m；330kV alternating current circuit phase conductor inverted triangle is arranged relatively to be arranged vertically and can be reduced a layer conductor, ferrum
Tower height reduction 9m；Compared with arranging with positive triangle, distance to the ground can reduce about 1.5m, and the width of corridor that ground field intensity controls reduces
10m；
Above content is to combine the further description that invention is made by concrete preferred implementation, it is impossible to assert this
Invention detailed description of the invention be only limitted to this, for general technical staff of the technical field of the invention, without departing from
On the premise of present inventive concept, it is also possible to make some simple deduction or replace, all should be considered as belonging to the present invention and be submitted to
The scope of patent protection that determines of claims.
Claims (4)
1. ± 1100kV direct current exchanges same tower wire arrangements structure with double back 330kV, it is characterised in that: ± 1100kV DC line
Phase conductor (1) is horizontally arranged, uses " V " type string to be symmetrically arranged in steel tower top, and double back 330kV alternating current circuit phase conductor falls
Triangular symmetrical is arranged in steel tower bottom；On every time 330kV alternating current circuit, two phase conductors (2) use " IV " string to be connected with steel tower cross-arm
Being positioned at steel tower middle level, under every time 330kV alternating current circuit, phase conductor (3) uses I type insulator chain to be connected with steel tower cross-arm and be positioned at ferrum
Tower orlop.
The most according to claim 1 ± 1100kV direct current exchanges same tower wire arrangements structure with double back 330kV, and its feature exists
In: ± 1100kV DC line wire minimum distance to the ground is 28m.
The most according to claim 1 ± 1100kV direct current exchanges same tower wire arrangements structure with double back 330kV, and its feature exists
In: 330kV alternating current circuit wire minimum distance to the ground is 7.5m.
The most according to claim 1 ± 1100kV direct current exchanges same tower wire arrangements structure with double back 330kV, and its feature exists
In: " V " type string length is 17m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610668714.9A CN106099818A (en) | 2016-08-15 | 2016-08-15 | ± 1100kV direct current exchanges same tower wire arrangements structure with double back 330kV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610668714.9A CN106099818A (en) | 2016-08-15 | 2016-08-15 | ± 1100kV direct current exchanges same tower wire arrangements structure with double back 330kV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106099818A true CN106099818A (en) | 2016-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610668714.9A Pending CN106099818A (en) | 2016-08-15 | 2016-08-15 | ± 1100kV direct current exchanges same tower wire arrangements structure with double back 330kV |
Country Status (1)
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| CN (1) | CN106099818A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869271A (en) * | 2016-09-23 | 2018-04-03 | 国家电网公司 | Pyramidal structure of ± 1100kV the extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower |
| CN110601165A (en) * | 2019-09-10 | 2019-12-20 | 中国电力工程顾问集团中南电力设计院有限公司 | DC line reconstructed by same-tower double-circuit AC line and reconstruction method thereof |
Citations (7)
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| EP1128513A1 (en) * | 2000-02-21 | 2001-08-29 | ABB T&D Technology Ltd. | Supporting tower |
| CN2909652Y (en) * | 2006-05-31 | 2007-06-06 | 北京国电华北电力工程有限公司 | Co-tower double-loop compact linear transmission pylon |
| CN201307748Y (en) * | 2008-11-19 | 2009-09-09 | 中国电力工程顾问集团公司 | Heavy ice area triangular-arrangement double-circuit tower |
| WO2011029311A1 (en) * | 2009-09-08 | 2011-03-17 | 国网电力科学研究院 | Method for vertically grounding and leading down from outer side of composite material pole tower and pole tower thereof. |
| CN202578097U (en) * | 2012-04-09 | 2012-12-05 | 中国电力工程顾问集团中南电力设计院 | Linear tower structure of co-tower double-loop direct current electric transmission line |
| CN204464916U (en) * | 2015-04-10 | 2015-07-08 | 中国电力工程顾问集团中南电力设计院有限公司 | ± 800kV and ± 500kV is with tower mixed pressure transmission line polar conductor arrangement |
| CN205882641U (en) * | 2016-08-15 | 2017-01-11 | 中国电力工程顾问集团西北电力设计院有限公司 | 1100kV direct current exchanges with tower wire arrangement structure with two 330kV that return |
-
2016
- 2016-08-15 CN CN201610668714.9A patent/CN106099818A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1128513A1 (en) * | 2000-02-21 | 2001-08-29 | ABB T&D Technology Ltd. | Supporting tower |
| CN2909652Y (en) * | 2006-05-31 | 2007-06-06 | 北京国电华北电力工程有限公司 | Co-tower double-loop compact linear transmission pylon |
| CN201307748Y (en) * | 2008-11-19 | 2009-09-09 | 中国电力工程顾问集团公司 | Heavy ice area triangular-arrangement double-circuit tower |
| WO2011029311A1 (en) * | 2009-09-08 | 2011-03-17 | 国网电力科学研究院 | Method for vertically grounding and leading down from outer side of composite material pole tower and pole tower thereof. |
| CN202578097U (en) * | 2012-04-09 | 2012-12-05 | 中国电力工程顾问集团中南电力设计院 | Linear tower structure of co-tower double-loop direct current electric transmission line |
| CN204464916U (en) * | 2015-04-10 | 2015-07-08 | 中国电力工程顾问集团中南电力设计院有限公司 | ± 800kV and ± 500kV is with tower mixed pressure transmission line polar conductor arrangement |
| CN205882641U (en) * | 2016-08-15 | 2017-01-11 | 中国电力工程顾问集团西北电力设计院有限公司 | 1100kV direct current exchanges with tower wire arrangement structure with two 330kV that return |
Non-Patent Citations (1)
| Title |
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| 吴驰，张龙伟等: "共走廊同塔交直流输电线路电磁耦合分量的计算分析", 《中国电力》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869271A (en) * | 2016-09-23 | 2018-04-03 | 国家电网公司 | Pyramidal structure of ± 1100kV the extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower |
| CN110601165A (en) * | 2019-09-10 | 2019-12-20 | 中国电力工程顾问集团中南电力设计院有限公司 | DC line reconstructed by same-tower double-circuit AC line and reconstruction method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Xiaoting Inventor after: Zhang Fangjie Inventor after: Yang Lin Inventor after: Tan Haowen Inventor after: Cheng Shuyi Inventor after: Zhang Luqi Inventor after: Wen Weibing Inventor after: Yang Lei Inventor after: Li Benliang Inventor after: Jiang Yue Inventor after: Zhu Yongping Inventor after: Wang Xueming Inventor after: Zhang Yuan Inventor before: Li Xiaoting Inventor before: Tan Haowen Inventor before: Zhang Luqi Inventor before: Yang Lei Inventor before: Jiang Yue Inventor before: Zhu Yongping Inventor before: Wang Xueming Inventor before: Zhang Yuan Inventor before: Zhang Fangjie Inventor before: Yang Lin |
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| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |