CN105824982A - Three-dimensional electrical distance checking method for approach span of very high voltage transmission line - Google Patents
Three-dimensional electrical distance checking method for approach span of very high voltage transmission line Download PDFInfo
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- CN105824982A CN105824982A CN201510507414.8A CN201510507414A CN105824982A CN 105824982 A CN105824982 A CN 105824982A CN 201510507414 A CN201510507414 A CN 201510507414A CN 105824982 A CN105824982 A CN 105824982A
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Abstract
The invention discloses a three-dimensional electrical distance checking method for an approach span of a very high voltage transmission line. The method comprises the following steps: S1, adding corresponding line sections, tower footings and outgoing line frame pile positions in corresponding positions according to design requirements; S2, newly constructing tower poles and portal structures required in the very high voltage line, and newly constructing insulator strings and conductor structures required; S3, newly constructing meteorological conditions in the current line engineering situation; S4, selecting required conductor and ground wire models and selecting tower models and corresponding insulator strings under a voltage class; S5, selecting corresponding conductor and ground wire models, parameters, meteorological conditions, tower poles, portals and corresponding insulator strings, and then erecting a tower and performing line stringing in a pile position; S6, performing line distance measurement checking and design adjustment after modeling is successful. The method can realize accurate three-dimensional electrical distance check of the access gear, can adjust line design, and is convenient and efficient, good in flexible and high in reliability.
Description
Technical field
The present invention relates to power transmission technology field, particularly relate to a kind of UHV transmission line and enter the station shelves three-dimensional electrical distance method of calibration.
Background technology
Grade crossing elimination leap distance that enters the station and wire pitch need to judge whether to meet the safety net distance of Regulations requirement by SPATIAL CALCULATION, detailed three-dimensional computations to take considerable time, calculating typically by means of simplifying in engineering design, incorporation engineering experience judges.And Three-dimensional Design Software, the intersection in this antarafacial space intuitively can be represented, and carry out tight three-dimensional electrically check, measure space length and the lead wire and earth wire vertical dimension over the ground of any two object, the convenient phase spacing checking grade circuit that enters the station and other space lengths.Therefore Three-dimensional Design Software compare conventional two-dimensional mode more accurately, image, directly perceived, be greatly improved sight, there is certain superiority.
Utilize common three-dimensional drawing Software on Drawing 3-D graphic complex, the most more, and the characteristic such as sag of conductor and ground wire curve is wayward, " road henry SLW3D aerial power transmission line three-dimensional design system " software has accurate three-dimensional modeling ability, but only there is the engineering such as 110kV～500kV electric pressure universal design storehouse and corresponding circuit design, function singleness, design inconvenience.
Summary of the invention
Because the drawbacks described above of prior art, the present invention provides a kind of UHV transmission line to enter the station shelves three-dimensional electrical distance method of calibration, this method utilizes " road henry SLW3D aerial power transmission line three-dimensional design system " software 3-D view and the function of three-dimensional range finding for 1000kV UHVAC transmission line, carry out three-dimensional modeling, it is achieved the shelves three-dimensional electrical distance that enters the station accurately measures verification.The modeling software of the present invention utilizes file of surveying the topography to model more accuracy on actual landform, if and phase spacing is undesirable in actual design process, circuit can be adjusted by forms such as the wire transposition of the shelves that enter the station, adjusting lever tower height degree, displacements to design, convenient and swift.
For achieving the above object, the invention provides a kind of UHV transmission line and enter the station shelves three-dimensional electrical distance method of calibration, comprise the following steps:
Step S1, open the terrain file measuring gained, electric pressure modeling in arbitrarily selected software, add respective lines section, column foot and outlet structure stake position in relevant position according to design requirement；
Shaft tower used and portal-framed structure, newly-built insulator chain, conductor structure used in newly-built extra high voltage line in step S2, electric pressure corresponding selected in " editorial project data base "；
Step S3, in " editor storehouse, meteorologic district ", again build the meteorological condition under current line project situation；
Tower under step S4, the lead wire and earth wire model used needed for " preparing in storehouse " is selected and selected electric pressure and corresponding insulator string；
Step S5, in " Design wizard ", on stake position, carry out Li Ta stringing after selected corresponding lead wire and earth wire model and parameter, meteorological condition, shaft tower, door frame and corresponding insulator chain；
Step S6, model successfully, carry out wire spacing and measure verification and design adjusts, to determine distance whether compliant and design requirement.
Further, in described step S2, shaft tower used and portal-framed structure should ensure that corresponding physical dimension and extra high voltage line are actually used consistent.
Further, in described step S5, in " Design wizard ", the parameter type of selected corresponding lead wire and earth wire model and parameter includes division number, new linear system number, safety coefficient, year flat coefficient.
Further, intuitively show that extra high voltage line enters the station the situation of shelves by 3-D view after described step S6 modeling successfully.
Beneficial effects of the present invention:
1, this method utilizes " road henry SLW3D aerial power transmission line three-dimensional design system " software 3-D view and the function of three-dimensional range finding for 1000kV UHVAC transmission line, carries out three-dimensional modeling, it is achieved the shelves three-dimensional electrical distance that enters the station accurately measures verification；
2, the modeling software of the present invention utilizes file of surveying the topography to model more accuracy on actual landform, if and phase spacing is undesirable in actual design process, circuit can be adjusted by forms such as the wire transposition of the shelves that enter the station, adjusting lever tower height degree, displacements to design, convenient and swift.
Below with reference to accompanying drawing, the technique effect of design, concrete structure and the generation of the present invention is described further, to be fully understood from the purpose of the present invention, feature and effect.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the present invention；
Fig. 2 is that the extra high voltage line of the present invention enters the station mark structure schematic diagram.
Detailed description of the invention
As shown in Figure 1, 2, a kind of UHV transmission line enters the station shelves three-dimensional electrical distance method of calibration, it is characterised in that comprise the following steps:
Step S1, open the terrain file measuring gained, electric pressure modeling in arbitrarily selected software, add respective lines section, column foot and outlet structure stake position in relevant position according to design requirement；
Shaft tower used and portal-framed structure, newly-built insulator chain, conductor structure used in newly-built extra high voltage line in step S2, electric pressure corresponding selected in " editorial project data base "；
Step S3, in " editor storehouse, meteorologic district ", again build the meteorological condition under current line project situation；
Tower under step S4, the lead wire and earth wire model used needed for " preparing in storehouse " is selected and selected electric pressure and corresponding insulator string；
Step S5, in " Design wizard ", on stake position, carry out Li Ta stringing after selected corresponding lead wire and earth wire model and parameter, meteorological condition, shaft tower, door frame and corresponding insulator chain；
Step S6, model successfully, carry out wire spacing and measure verification and design adjusts, to determine distance whether compliant and design requirement.
Further, using and measure gained terrain file in described step S1, result is the most accurate.Method can also substitute below: in most cases progress shelves landform is relatively flat, the landform in software example therefore can be used in the case of not having actual surveying the topography to be modeled calculating verification.This has some superiority in the case of the preliminary stages such as engineering feasibility study do not have measurement data.
Further, in described step S2, shaft tower used and portal-framed structure should ensure that corresponding physical dimension and extra high voltage line are actually used consistent.Newly-built tower input parameter mainly include arrangements of conductors pattern, horizontal spacing, lead ground level away from, earth wire support lower wire high, upper away from, middle lower wire away from, lead flat projection, lead projection of hanging down.General UHV Long Insulator String structure is complex, for shelves three-dimensional electrical distance verification of entering the station, it is possible to use the insulator chain that structure is relatively easy, length is identical replaces.
Further, in described step S3, meteorological condition used mainly inputs meteorological condition under the operating modes such as low temperature, strong wind, Nian Ping, icing, high temperature, installation, thunder and lightning, operation.
Further, in described step S5, in " Design wizard ", the parameter type of selected corresponding lead wire and earth wire model and parameter includes division number, new linear system number, safety coefficient, year flat coefficient.Isolated shelves calculate the drawing length of crossing of lead wire and earth wire in parameter and are disposed as 0.15m, and cooling numerical value is according to actually used lead wire and earth wire model.
Further, by 3-D view intuitively showing extra high voltage line enter the station the situation of shelves after modeling successfully in described step S6, including alternate minimum range numerical value and position, minimum perpendicular distance etc., in this example, alternate minimum range is 10.19m.
The modeling following structural parameters of employing of the present embodiment:
Frame size:
| Project | Arrange size (m) |
| Framework width | 51 |
| Framework hanging point height | 41 |
| Framework conducting wire hanging point distance mutually | 11.3 |
| Framework conducting wire hanging point phase spacing | 14.2 |
Terminal tower uses the 10GB3-SDJ1 tower in " State Grid Corporation of China's project of transmitting and converting electricity universal design 1000kV transmission line of electricity fascicle ", wire: 8 × JL/G1A-630/45；Ground wire: JLB20A-240, uses the design meteorology combination of corresponding 10GB3 module.
In sum, this method utilizes " road henry SLW3D aerial power transmission line three-dimensional design system " software 3-D view and the function of three-dimensional range finding for 1000kV UHVAC transmission line, carries out three-dimensional modeling, it is achieved the shelves three-dimensional electrical distance that enters the station accurately measures verification.The modeling software of the present invention utilizes file of surveying the topography to model more accuracy on actual landform, if and phase spacing is undesirable in actual design process, circuit can be adjusted by forms such as the wire transposition of the shelves that enter the station, adjusting lever tower height degree, displacements to design, convenient and swift.
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work.Therefore, all technical staff in the art, all should be in the protection domain being defined in the patent claims the most on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (3)
1. UHV transmission line enters the station a shelves three-dimensional electrical distance method of calibration, comprises the following steps:
Step S1, open the terrain file measuring gained, electric pressure modeling in arbitrarily selected software, add respective lines section, column foot and outlet structure stake position in relevant position according to design requirement；
Shaft tower used and portal-framed structure, newly-built insulator chain, conductor structure used in newly-built extra high voltage line in step S2, electric pressure corresponding selected in " editorial project data base "；
Step S3, in " editor storehouse, meteorologic district ", again build the meteorological condition under current line project situation；
Tower under step S4, the lead wire and earth wire model used needed for " preparing in storehouse " is selected and selected electric pressure and corresponding insulator string；
Step S5, in " Design wizard ", on stake position, carry out Li Ta stringing after selected corresponding lead wire and earth wire model and parameter, meteorological condition, shaft tower, door frame and corresponding insulator chain；In described step S5, in " Design wizard ", the parameter type of selected corresponding lead wire and earth wire model and parameter includes division number, new linear system number, safety coefficient, year flat coefficient；
Step S6, model successfully, carry out wire spacing and measure verification and design adjusts, to determine distance whether compliant and design requirement.
UHV transmission line the most according to claim 1 enters the station shelves three-dimensional electrical distance method of calibration, it is characterised in that in described step S2, shaft tower used and portal-framed structure should ensure that corresponding physical dimension and extra high voltage line are actually used consistent.
UHV transmission line the most according to claim 1 enters the station shelves three-dimensional electrical distance method of calibration, it is characterised in that intuitively show that extra high voltage line enters the station the situation of shelves by 3-D view after modeling successfully in described step S6.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110889542A (en) * | 2019-11-19 | 2020-03-17 | 国网电力科学研究院武汉南瑞有限责任公司 | Dynamic prediction method for electrical safety distance of crossing of conducting wires and ground wires of power transmission line |
| CN111737307A (en) * | 2020-04-10 | 2020-10-02 | 中国电力工程顾问集团中南电力设计院有限公司 | Automatic checking method based on distribution network dictionary setting boundary condition full elements |
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| CN110889542A (en) * | 2019-11-19 | 2020-03-17 | 国网电力科学研究院武汉南瑞有限责任公司 | Dynamic prediction method for electrical safety distance of crossing of conducting wires and ground wires of power transmission line |
| CN111737307A (en) * | 2020-04-10 | 2020-10-02 | 中国电力工程顾问集团中南电力设计院有限公司 | Automatic checking method based on distribution network dictionary setting boundary condition full elements |
| CN111737307B (en) * | 2020-04-10 | 2024-04-09 | 中国电力工程顾问集团中南电力设计院有限公司 | Automatic checking method based on full elements of typical boundary conditions of power distribution network |
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