CN111090919A - Optimized modeling method and system for spacer in three-dimensional design of transformer substation - Google Patents
Optimized modeling method and system for spacer in three-dimensional design of transformer substation Download PDFInfo
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- 125000006850 spacer group Chemical group 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000013461 design Methods 0.000 title claims abstract description 27
- 239000004020 conductor Substances 0.000 claims abstract description 74
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000005457 optimization Methods 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 4
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- 238000013519 translation Methods 0.000 claims description 4
- 238000004088 simulation Methods 0.000 abstract description 7
- 238000004364 calculation method Methods 0.000 abstract description 3
- 230000016507 interphase Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
An optimized modeling method for a spacer in three-dimensional design of a transformer substation determines the midpoint of a start-point connecting line and a terminal-point connecting line according to a start-point coordinate and a terminal-point coordinate of wire connection and the wire outgoing direction of the wire connection; calculating sag information of the connecting wire, and adjusting the middle point of the starting point connecting wire and the end point connecting wire to obtain the final sag point of the wire; obtaining the extension length and the inflection point position of the wire along the starting and ending point directions according to the total weight of the wire and the elastic coefficient corresponding to the material specification of the wire; constructing a curve as a central line of the connecting lead according to the starting point coordinate, the vertical point coordinate, the end point coordinate and the lead-out direction of the lead connection; and constructing an optimized model of the split conductor and the spacer according to the central line of the conductor. According to the invention, by adopting an innovative calculation and simulation method, the problems of real simulation and display of the split conductor and spacer model in the transformer substation are solved, the engineering is optimally designed, and the model can be more accurate.
Description
Technical Field
The invention relates to the field of transformer substation engineering construction design, in particular to an optimized modeling method and system for a spacer in transformer substation three-dimensional design.
Background
With the advance of national power grid intelligent construction, the achievement of a digital three-dimensional transformer substation becomes more important, a plurality of software platforms in China can carry out three-dimensional design on the transformer substation at present, but the quality of the design achievement is not high, and three-dimensional real modeling of split conductors cannot be realized.
In the construction design of transformer substation engineering, the problem of conductor galloping of a power transmission line is always a great hidden danger threatening the safety of a power grid. As early as the last 30 centuries, the united states has reported on conductor ice-coating dancing, and was the country in which icecoated conductor dancing was first discovered. Subsequently, countries and regions such as canada, the former soviet union, the united kingdom, japan, and china have also reported conductor galloping. The large-amplitude (the amplitude reaches about 10 m) wire galloping which occurs in the large-span wire from the middle-mountain mouth in China begins to be recorded and researched. The long-time severe waving can cause great mechanical burden to the tower wire system, which seriously threatens the safety of the power grid. Therefore, the serious wire galloping of the power transmission line impairs the safe operation of the power grid, and the management of the wire galloping problem is not slow.
The interphase spacer is an anti-galloping means which is widely applied at present, is an insulating mechanical component arranged between two phase conductors of an overhead transmission line, is earlier applied to the transmission line, and can be simultaneously suitable for single conductors and split conductors. At present, the interphase spacer is widely applied to transmission lines of 220kV and below, and plays an important role in line galloping prevention. The main working principle of the interphase spacer for preventing the conductor from waving is to connect multi-phase isolated conductors together to form an integral elastic structure which can bear tension and compression loads at the same time. When the adjacent wires are not in synchronous galloping, the interphase spacer can block the motion of the galloping wires by means of the other phase wire, and plays a role in damping the motion of the wires; meanwhile, the interphase spacers link the multiphase isolated conductors into a whole, so that the external excitation effect on a conductor system is more dispersed, the vibration amplitude of a single conductor is effectively reduced, the vibration of the multiphase conductors tends to be synchronous, the interphase interval of the conductors is always kept in a larger range, and the occurrence of interphase flashover can be effectively avoided.
Because the three-dimensional design software platform of the existing transformer substation and the transmission line thereof cannot realize the three-dimensional real modeling of the split conductor with high quality, data incorrectness exists in various aspects of safety clear distance check, collision check, material statistics, conductor simulation, spacer position and the like of the transmission line project, the three-dimensional result of the project cannot be optimized and utilized, and the research of the method for realizing the real modeling of the split conductor and the spacer is urgent at present.
Disclosure of Invention
Aiming at the existing defects, the invention provides an optimized modeling method of a spacer in the three-dimensional design of a transformer substation, which is characterized by comprising the following steps:
step 1: loading a three-dimensional design scene of a power transmission line of a transformer substation;
step 2: determining a starting point connecting piece and an end point connecting piece which are connected with a lead, and determining a starting point coordinate and an end point coordinate which are connected with the lead and normal vector information of a connecting line according to the starting point connecting piece and the end point connecting piece;
and step 3: calculating the wire outgoing direction of the wire connection according to the start point coordinate and the end point coordinate of the wire connection and the normal vector information of the connecting wire;
and 4, step 4: determining the midpoint of a start point connecting line and a terminal point connecting line according to the start point coordinate and the terminal point coordinate of the wire connection and the wire outgoing direction of the wire connection;
and 5: calculating sag information of the connecting wire, and adjusting the middle point of the starting point connecting wire and the end point connecting wire to obtain the final sag point of the wire;
step 6: obtaining the extension length and the inflection point position of the wire along the starting and ending point directions according to the total weight of the wire and the elastic coefficient corresponding to the material specification of the wire;
and 7: and constructing a curve as the central line of the connecting lead according to the coordinates of the starting point, the coordinates of the vertical point, the coordinates of the end point and the outgoing line direction of the lead connection.
And 8: and constructing an optimized model of the split conductor and the spacer according to the central line of the conductor.
And an optimized modeling system of spacer in transformer substation three-dimensional design, which is characterized in that:
a loading unit: the method is used for loading the three-dimensional scene of the transmission line of the transformer substation;
a determination unit: the system comprises a starting point connecting piece and an end point connecting piece which are used for determining a connecting wire, and a starting point coordinate and an end point coordinate of the wire connection and normal vector information of the connecting wire are determined according to the starting point connecting piece and the end point connecting piece;
an outgoing line determination unit: the device is used for calculating the wire outgoing direction of the wire connection according to the start point coordinate and the end point coordinate of the wire connection and the normal vector information of the connecting wire;
a midpoint determining unit: the central point of the starting point connecting line and the terminal point connecting line is determined according to the starting point coordinate and the terminal point coordinate of the wire connection and the wire outgoing direction of the wire connection;
a vertical point determination unit: the device is used for calculating the sag information of the connecting wire and adjusting the middle point of the starting point connecting line and the ending point connecting line to obtain the final sag point of the wire;
an extension determination unit: the device is used for obtaining the extending length and the inflection point position of the wire along the starting and ending point directions according to the total weight of the wire and the elastic coefficient corresponding to the material specification of the wire;
a center line determination unit: and the device is used for constructing a curve as the central line of the connecting lead according to the starting point coordinate, the vertical point coordinate, the end point coordinate and the lead-out direction of the lead connection.
A model generation unit: an optimization model for the split conductors and spacers is constructed from the conductor centerlines.
The method has the advantages that the real simulation and display problems of the split conductor and the spacer model thereof in the transformer substation are solved through the innovative calculation and simulation method, and the model can be more accurate by optimally designing the engineering.
Drawings
Fig. 1 is a schematic diagram of an optimized modeling method of a split conductor and a spacer thereof in a three-dimensional design of a transformer substation.
Fig. 2 is a three-dimensional design modeling diagram of a substation of the present invention.
Detailed Description
For a better understanding of the invention, the method according to the invention is further illustrated below with reference to the description of an embodiment in conjunction with the drawing.
In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. It will be understood by those skilled in the art, however, that the present invention may be practiced without these specific details. In the embodiments, well-known methods, procedures, components, and so forth have not been described in detail as not to unnecessarily obscure the embodiments.
Referring to fig. 1, the optimized modeling method for the spacer in the three-dimensional design of the transformer substation is characterized in that:
step 1: loading a three-dimensional design scene of a power transmission line of a transformer substation;
step 2: determining a starting point connecting piece and an end point connecting piece which are connected with a lead, and determining a starting point coordinate and an end point coordinate which are connected with the lead and normal vector information of a connecting line according to the starting point connecting piece and the end point connecting piece;
and step 3: calculating the wire outgoing direction of the wire connection according to the start point coordinate and the end point coordinate of the wire connection and the normal vector information of the connecting wire;
and 4, step 4: determining the midpoint of a start point connecting line and a terminal point connecting line according to the start point coordinate and the terminal point coordinate of the wire connection and the wire outgoing direction of the wire connection;
and 5: calculating sag information of the connecting wire, and adjusting the middle point of the starting point connecting wire and the end point connecting wire to obtain the final sag point of the wire;
step 6: obtaining the extension length and the inflection point position of the wire along the starting and ending point directions according to the total weight of the wire and the elastic coefficient corresponding to the material specification of the wire;
and 7: and constructing a curve as the central line of the connecting lead according to the coordinates of the starting point, the coordinates of the vertical point, the coordinates of the end point and the outgoing line direction of the lead connection.
And 8: and constructing an optimized model of the split conductor and the spacer according to the central line of the conductor.
Preferably, wherein double, triple, quadruple, hexa, octa split conductors can be supported.
Preferably, wherein the step 5: calculating sag information of the connecting wire, specifically:
wherein f is the sag value, l is the distance from the starting point to the end point of the wire connection,
is the height difference angle and d is the wire diameter.
Preferably, wherein the step 5: calculating sag information of the connecting wire, and adjusting the middle point of the starting point connecting line and the ending point connecting line to obtain the final sag point of the wire, wherein the sag information comprises the following specific steps: and determining the coordinates of the midpoint of the connecting line of the starting point and the ending point as (Cx, Cy, Cz) and the sag value as f, and moving the coordinates of the midpoint to the gravity direction by the distance of the sag value to obtain the final coordinates of the sag point of the lead as (Cx, Cy, Cz-f).
Preferably, wherein the step 8: the method comprises the following steps of constructing an optimization model of the split conductor and the spacer according to the central line of the conductor, and specifically comprises the following steps:
step 8-1: creating a plane which takes the direction of the starting point of the central line as a normal direction, and taking the starting point of the central line as the central position of the starting point of the split conductor on the plane;
step 8-2: according to the splitting distance, a starting point of the split conductor is created through translation;
step 8-3: drawing a circle with the diameter of the wire by taking the starting point direction of the central line as a normal direction at the starting point position of the split wire, and stretching a solid model of the split wire by taking the circle as an outline and the central line as a path;
step 8-4: determining the spacing of the spacing rods and the positions of the spacing rods on the split conductors according to the shape and center line information of the split conductors;
and 8-5: determining the normal vector information of the position point of the split conductor where each spacer is located, and taking the normal vector of each position point as the placing trend of the spacers;
and 8-6: and (4) placing the spacers according to the spacing of the spacers, the positions and the placing trends of the spacers on the split conductors and the conductor split spacing, and constructing an optimization model of the spacers.
And, an optimized modeling system of spacer in transformer substation three-dimensional design, its characterized in that:
a loading unit: the method is used for loading the three-dimensional scene of the transmission line of the transformer substation;
a determination unit: the system comprises a starting point connecting piece and an end point connecting piece which are used for determining a connecting wire, and a starting point coordinate and an end point coordinate of the wire connection and normal vector information of the connecting wire are determined according to the starting point connecting piece and the end point connecting piece;
an outgoing line determination unit: the device is used for calculating the wire outgoing direction of the wire connection according to the start point coordinate and the end point coordinate of the wire connection and the normal vector information of the connecting wire;
a midpoint determining unit: the central point of the starting point connecting line and the terminal point connecting line is determined according to the starting point coordinate and the terminal point coordinate of the wire connection and the wire outgoing direction of the wire connection;
a vertical point determination unit: the device is used for calculating the sag information of the connecting wire and adjusting the middle point of the starting point connecting line and the ending point connecting line to obtain the final sag point of the wire;
an extension determination unit: the device is used for obtaining the extending length and the inflection point position of the wire along the starting and ending point directions according to the total weight of the wire and the elastic coefficient corresponding to the material specification of the wire;
a center line determination unit: and the device is used for constructing a curve as the central line of the connecting lead according to the starting point coordinate, the vertical point coordinate, the end point coordinate and the lead-out direction of the lead connection.
A model generation unit: an optimization model for the split conductors and spacers is constructed from the conductor centerlines.
Preferably, wherein double, triple, quadruple, hexa, octa split conductors can be supported.
Preferably, wherein the vertical point determining unit: the method is used for calculating the sag information of the connecting wire, and specifically comprises the following steps:
wherein f is the sag value, l is the distance from the starting point to the end point of the wire connection,
is the height difference angle and d is the wire diameter.
Preferably, wherein the vertical point determining unit: the method is used for calculating the sag information of the connecting wire and adjusting the middle point of the starting point connecting line and the ending point connecting line to obtain the final sag point of the wire, and specifically comprises the following steps: and determining the coordinates of the midpoint of the connecting line of the starting point and the ending point as (Cx, Cy, Cz) and the sag value as f, and moving the coordinates of the midpoint to the gravity direction by the distance of the sag value to obtain the final coordinates of the sag point of the lead as (Cx, Cy, Cz-f).
Preferably, wherein the model generation unit: the optimization model for constructing the split conductors and the spacing rods according to the conductor center lines specifically comprises the following steps:
a center determination unit: creating a plane which takes the direction of the starting point of the central line as a normal direction, and taking the starting point of the central line as the central position of the starting point of the split conductor on the plane;
a starting point determining unit: according to the splitting distance, a starting point of the split conductor is created through translation;
an entity creation unit: drawing a circle with the diameter of the wire by taking the starting point direction of the central line as a normal direction at the starting point position of the split wire, and stretching a solid model of the split wire by taking the circle as an outline and the central line as a path;
a position determination unit: determining the spacing of the spacing rods and the positions of the spacing rods on the split conductors according to the shape and center line information of the split conductors;
a trend determination unit: determining the normal vector information of the position point of the split conductor where each spacer is located, and taking the normal vector of each position point as the placing trend of the spacers;
the spacer constructing unit: and (4) placing the spacers according to the spacing of the spacers, the positions and the placing trends of the spacers on the split conductors and the conductor split spacing, and constructing an optimization model of the spacers.
The method has the advantages that the real simulation and display problems of the split conductor and the spacer model thereof in the transformer substation are solved through the innovative calculation and simulation method, and the model can be more accurate by optimally designing the engineering.
There has been described herein only the preferred embodiments of the invention, but it is not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the detailed description of the embodiments is presented to enable any person skilled in the art to make and use the embodiments. It will be understood that various changes and modifications in detail may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An optimized modeling method for a spacer in three-dimensional design of a transformer substation is characterized by comprising the following steps:
step 1: loading a three-dimensional design scene of a transformer substation;
step 2: determining a starting point connecting piece and an end point connecting piece which are connected with a lead, and determining a starting point coordinate and an end point coordinate which are connected with the lead and normal vector information of a connecting line according to the starting point connecting piece and the end point connecting piece;
and step 3: calculating the wire outgoing direction of the wire connection according to the start point coordinate and the end point coordinate of the wire connection and the normal vector information of the connecting wire;
and 4, step 4: determining the midpoint of a start point connecting line and a terminal point connecting line according to the start point coordinate and the terminal point coordinate of the wire connection and the wire outgoing direction of the wire connection;
and 5: calculating sag information of the connecting wire, and adjusting the middle point of the starting point connecting wire and the end point connecting wire to obtain the final sag point of the wire;
step 6: obtaining the extension length and the inflection point position of the wire along the starting and ending point directions according to the total weight of the wire and the elastic coefficient corresponding to the material specification of the wire;
and 7: and constructing a curve as the central line of the connecting lead according to the coordinates of the starting point, the coordinates of the vertical point, the coordinates of the end point and the outgoing line direction of the lead connection.
And 8: and constructing an optimized model of the split conductor and the spacer according to the central line of the conductor.
2. The optimized modeling method for the spacer in the three-dimensional design of the transformer substation of claim 1, which can support double-split, triple-split, quadruple-split, six-split and eight-split conductors.
3. The optimized modeling method for the spacer in the three-dimensional design of the substation according to claim 1, wherein the step 5: calculating sag information of the connecting wire, specifically:
wherein f is the sag value, l is the distance from the starting point to the end point of the wire connection,
is the height difference angle and d is the wire diameter.
4. The optimized modeling method for the spacer in the three-dimensional design of the substation according to claim 1, wherein the step 5: calculating sag information of the connecting wire, and adjusting the middle point of the starting point connecting line and the ending point connecting line to obtain the final sag point of the wire, wherein the sag information comprises the following specific steps: and determining the coordinates of the midpoint of the connecting line of the starting point and the ending point as (Cx, Cy, Cz) and the sag value as f, and moving the coordinates of the midpoint to the gravity direction by the distance of the sag value to obtain the final coordinates of the sag point of the lead as (Cx, Cy, Cz-f).
5. The method for optimizing and modeling the spacer in the three-dimensional design of the substation according to claim 1, wherein the step 8: the method comprises the following steps of constructing an optimization model of the split conductor and the spacer according to the central line of the conductor, and specifically comprises the following steps:
step 8-1: creating a plane which takes the direction of the starting point of the central line as a normal direction, and taking the starting point of the central line as the central position of the starting point of the split conductor on the plane;
step 8-2: according to the splitting distance, a starting point of the split conductor is created through translation;
step 8-3: drawing a circle with the diameter of the wire by taking the starting point direction of the central line as a normal direction at the starting point position of the split wire, and stretching a solid model of the split wire by taking the circle as an outline and the central line as a path;
step 8-4: determining the spacing of the spacing rods and the positions of the spacing rods on the split conductors according to the shape and center line information of the split conductors;
and 8-5: determining the normal vector information of the position point of the split conductor where each spacer is located, and taking the normal vector of each position point as the placing trend of the spacers;
and 8-6: and (4) placing the spacers according to the spacing of the spacers, the positions and the placing trends of the spacers on the split conductors and the conductor split spacing, and constructing an optimization model of the spacers.
6. The optimized modeling system of the spacer in the three-dimensional design of the transformer substation is characterized in that:
a loading unit: the method is used for loading the three-dimensional scene of the transmission line of the transformer substation;
a determination unit: the system comprises a starting point connecting piece and an end point connecting piece which are used for determining a connecting wire, and a starting point coordinate and an end point coordinate of the wire connection and normal vector information of the connecting wire are determined according to the starting point connecting piece and the end point connecting piece;
an outgoing line determination unit: the device is used for calculating the wire outgoing direction of the wire connection according to the start point coordinate and the end point coordinate of the wire connection and the normal vector information of the connecting wire;
a midpoint determining unit: the central point of the starting point connecting line and the terminal point connecting line is determined according to the starting point coordinate and the terminal point coordinate of the wire connection and the wire outgoing direction of the wire connection;
a vertical point determination unit: the device is used for calculating the sag information of the connecting wire and adjusting the middle point of the starting point connecting line and the ending point connecting line to obtain the final sag point of the wire;
an extension determination unit: the device is used for obtaining the extending length and the inflection point position of the wire along the starting and ending point directions according to the total weight of the wire and the elastic coefficient corresponding to the material specification of the wire;
a center line determination unit: and the device is used for constructing a curve as the central line of the connecting lead according to the starting point coordinate, the vertical point coordinate, the end point coordinate and the lead-out direction of the lead connection.
A model generation unit: an optimization model for the split conductors and spacers is constructed from the conductor centerlines.
7. The optimized modeling system for the spacer in the three-dimensional design of the substation according to claim 6, which can support double-split, triple-split, quadruple-split, six-split and eight-split conductors.
8. The optimization modeling system of the spacer in the three-dimensional design of the substation of claim 6, wherein the vertical point determination unit: the method is used for calculating the sag information of the connecting wire, and specifically comprises the following steps:
wherein f is a sagThe value, l, is the distance from the start to the end of the wire connection,
is the height difference angle and d is the wire diameter.
9. The optimized modeling method for the spacer in the three-dimensional design of the substation according to claim 6, wherein the vertical point determining unit: the method is used for calculating the sag information of the connecting wire and adjusting the middle point of the starting point connecting line and the ending point connecting line to obtain the final sag point of the wire, and specifically comprises the following steps: and determining the coordinates of the midpoint of the connecting line of the starting point and the ending point as (Cx, Cy, Cz) and the sag value as f, and moving the coordinates of the midpoint to the gravity direction by the distance of the sag value to obtain the final coordinates of the sag point of the lead as (Cx, Cy, Cz-f).
10. The optimized modeling method for the spacer in the three-dimensional design of the substation of claim 6, wherein the model generation unit: the optimization model for constructing the split conductors and the spacing rods according to the conductor center lines specifically comprises the following steps:
a center determination unit: creating a plane which takes the direction of the starting point of the central line as a normal direction, and taking the starting point of the central line as the central position of the starting point of the split conductor on the plane;
a starting point determining unit: according to the splitting distance, a starting point of the split conductor is created through translation;
an entity creation unit: drawing a circle with the diameter of the wire by taking the starting point direction of the central line as a normal direction at the starting point position of the split wire, and stretching a solid model of the split wire by taking the circle as an outline and the central line as a path;
a position determination unit: determining the spacing of the spacing rods and the positions of the spacing rods on the split conductors according to the shape and center line information of the split conductors;
a trend determination unit: determining the normal vector information of the position point of the split conductor where each spacer is located, and taking the normal vector of each position point as the placing trend of the spacers;
the spacer constructing unit: and (4) placing the spacers according to the spacing of the spacers, the positions and the placing trends of the spacers on the split conductors and the conductor split spacing, and constructing an optimization model of the spacers.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130027892A (en) * | 2011-09-08 | 2013-03-18 | 박일흥 | Fluid circulation structure a space bar for pair glass |
| CN103676667A (en) * | 2013-12-04 | 2014-03-26 | 国家电网公司 | Three-dimensional simulation, measurement and control system for transformer substation project flexible conductor assembling |
| CN104834788A (en) * | 2015-05-20 | 2015-08-12 | 广东电网公司佛山供电局 | Multi-loop multi-splitting ground wire three-dimensional model real-time construction method for 500kV tower |
| CN105680367A (en) * | 2016-02-25 | 2016-06-15 | 中国电力工程顾问集团西南电力设计院有限公司 | Method for solving spacing rod problem of bundled conductor power transmission line pole tower |
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2018
- 2018-10-24 CN CN201811244780.9A patent/CN111090919B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130027892A (en) * | 2011-09-08 | 2013-03-18 | 박일흥 | Fluid circulation structure a space bar for pair glass |
| CN103676667A (en) * | 2013-12-04 | 2014-03-26 | 国家电网公司 | Three-dimensional simulation, measurement and control system for transformer substation project flexible conductor assembling |
| CN104834788A (en) * | 2015-05-20 | 2015-08-12 | 广东电网公司佛山供电局 | Multi-loop multi-splitting ground wire three-dimensional model real-time construction method for 500kV tower |
| CN105680367A (en) * | 2016-02-25 | 2016-06-15 | 中国电力工程顾问集团西南电力设计院有限公司 | Method for solving spacing rod problem of bundled conductor power transmission line pole tower |
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