CN111401862A - Method and system for power grid engineering three-dimensional design review - Google Patents

Method and system for power grid engineering three-dimensional design review Download PDF

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CN111401862A
CN111401862A CN202010337305.7A CN202010337305A CN111401862A CN 111401862 A CN111401862 A CN 111401862A CN 202010337305 A CN202010337305 A CN 202010337305A CN 111401862 A CN111401862 A CN 111401862A
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ball
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CN111401862B (en
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周翔
张天光
翟晓萌
宋立军
李多
秦加林
郭炜
陈建飞
谭妍
于大龙
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Power Construction Technology Economic Consulting Center Of China Electricity Council
State Grid Jiangsu Electric Power Co Ltd
Economic and Technological Research Institute of State Grid Jiangsu Electric Power Co Ltd
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Power Construction Technology Economic Consulting Center Of China Electricity Council
State Grid Jiangsu Electric Power Co Ltd
Economic and Technological Research Institute of State Grid Jiangsu Electric Power Co Ltd
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Abstract

The invention discloses a method and a system for power grid engineering three-dimensional design review. The evaluation method comprises the following steps: displaying the editable three-dimensional model of the power grid project to be evaluated according to the design information of the power grid project to be evaluated, and selecting an insulator to be evaluated from the displayed editable three-dimensional model; determining the maximum windage yaw angle and the allowable charged gap of the insulator to be evaluated; determining the sphere center of the gap ball of the insulator to be evaluated according to the maximum wind deflection angle, and determining the radius of the gap ball of the insulator to be evaluated according to the allowable charged gap; and generating a three-dimensional model of the clearance ball in the editable three-dimensional model according to the sphere center and the radius of the clearance ball. The method provided by the invention can flexibly look up the three-dimensional design of the power grid project in the evaluation informatization system, and an evaluation expert can select different three-dimensional design information display modes according to specific evaluation requirements, so that the flexibility, the accuracy and the convenience of evaluation are improved.

Description

Method and system for power grid engineering three-dimensional design review
Technical Field
The invention relates to a review method, in particular to a three-dimensional design review method and a three-dimensional design review system for power grid engineering.
Background
In the process of evaluating the power grid engineering design, the evaluation of the three-dimensional design is of great importance, however, in the prior art, the evaluation of the power grid engineering three-dimensional design still continues to use the traditional evaluation method, namely, the three-dimensional model is manually checked through projection, and the convenient and flexible checking of the power grid engineering three-dimensional design in an evaluation system cannot be really realized, so that the problems of long evaluation period, large workload, non-standard three-dimensional evaluation and the like are caused, and human eyes cannot accurately identify certain critical information when the power grid engineering three-dimensional design is manually evaluated, so that the evaluation result is deviated, and the accuracy of the evaluation result is reduced.
Disclosure of Invention
In order to solve the above technical problem, the present patent provides a method for reviewing a power grid project, which is characterized in that the method includes:
displaying the power grid project to be evaluated in an editable three-dimensional model according to the design information of the power grid project to be evaluated, and selecting an insulator to be evaluated from the displayed editable three-dimensional model;
determining the maximum wind deflection angle and the allowable charged gap of the insulator to be evaluated;
determining the center of a gap ball of the insulator to be evaluated according to the maximum wind deflection angle, and determining the radius of the gap ball of the insulator to be evaluated according to the allowable charged gap;
generating the three-dimensional model of the clearance ball in the editable three-dimensional model according to the center and the radius of the clearance ball;
and generating a review report of the insulator to be reviewed according to the three-dimensional model of the gap ball.
Further, the determining the maximum wind deflection angle of the insulator to be evaluated comprises:
and respectively calculating the maximum wind deflection angle of the insulator to be evaluated according to a preset calculation formula of the wind deflection angle.
Further, the determining the allowable charged gap of the insulator to be evaluated comprises:
extracting the design charged gap of the insulator to be evaluated from the design information;
and adding the designed charged gap and a preset allowable deviation to obtain the allowable charged gap.
Further, the selecting an insulator to be evaluated from the displayed editable three-dimensional model comprises:
selecting a strain section to be evaluated from the editable three-dimensional model;
selecting a single foundation tower to be evaluated from the tension resistant section to be evaluated;
and selecting a suspension insulator from the single foundation tower to be evaluated, and taking the suspension insulator as the insulator to be evaluated.
Further, the determining the center of the gap ball of the insulator to be evaluated according to the maximum wind deflection angle includes:
determining the maximum windage yaw position of the insulator to be evaluated and examined according to the maximum windage yaw angle;
and hanging the insulator to be evaluated at the maximum windage yaw position, extracting a hanging point of the insulator to be evaluated at the maximum windage yaw position, and taking the hanging point as the sphere center of the gap sphere.
Further, the generating a review report of the insulator to be reviewed according to the three-dimensional model of the gap ball includes:
making the three-dimensional model of the clearance ball perform preset circular motion;
judging whether the three-dimensional model of the clearance ball collides with the tower head when performing the circular motion, and if so, outputting first prompt information; if not, outputting second prompt information;
and generating a review report of the insulator to be reviewed according to the first prompt message or the second prompt message.
Further, the first prompt message comprises displaying the three-dimensional model of the clearance ball in a first color;
the second prompt message comprises displaying the three-dimensional model of the clearance ball in a second color;
wherein the first color is different from the second color.
Further, the step of performing the preset circular motion on the three-dimensional model of the clearance ball specifically comprises:
determining the circle center and the radius of the circular motion according to the maximum windage yaw position and the initial position of the insulator to be evaluated;
and the three-dimensional model of the clearance ball makes the circular motion by the circle center and the radius.
A review system for grid engineering, comprising:
the display module is used for displaying the power grid project to be evaluated in an editable three-dimensional model according to the design information of the power grid project to be evaluated;
the selection module is used for selecting insulators to be evaluated from the displayed editable three-dimensional model;
a calculation module for determining the maximum wind deflection angle and the allowable charged gap of the insulator to be evaluated, and,
the calculation module is further used for determining the sphere center of the gap sphere of the insulator to be evaluated according to the maximum wind deflection angle and determining the radius of the gap sphere of the insulator to be evaluated according to the allowable charged gap;
the generating module is used for generating the three-dimensional model of the clearance ball in the editable three-dimensional model according to the center and the radius of the clearance ball;
and the evaluation module is used for generating an evaluation report of the insulator to be evaluated according to the three-dimensional model of the gap ball.
An electronic device, comprising:
one or more processors;
a storage unit for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to carry out the method according to any one of claims 1-8.
According to the method for evaluating the power grid engineering, the three-dimensional design of the power grid engineering can be flexibly consulted in an evaluation informatization system, and an evaluation expert can select different three-dimensional design information display modes according to specific evaluation requirements, so that the flexibility, accuracy and convenience of evaluation are improved, and the evaluation efficiency of the power grid engineering design is effectively improved. In addition, aiming at the design safety evaluation of the transmission line engineering tower head, the system provided by the invention can dynamically display the three-dimensional model of the gap ball and derive an evaluation report, so that the evaluation efficiency and the evaluation accuracy are improved.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for reviewing a power grid project according to embodiment 1;
fig. 2 is a schematic diagram of a display of a three-dimensional model of a gap sphere in the evaluation method of the power grid engineering proposed in embodiment 1;
fig. 3 is a schematic structural diagram of a review system of power grid engineering proposed in embodiment 2.
Detailed Description
The invention will be described in further detail below with reference to fig. 1 to 3, in order to better understand the contents of the invention and its advantages in various aspects. In the following examples, the following detailed description is provided for the purpose of providing a clear and thorough understanding of the present invention, and is not intended to limit the invention.
Example 1
The embodiment provides a power grid project review method, as shown in fig. 1, the review method includes the following steps:
s1: displaying the editable three-dimensional model of the power grid project to be evaluated according to the design information of the power grid project to be evaluated, and selecting an insulator to be evaluated from the displayed editable three-dimensional model.
The design information of the power grid project to be evaluated and examined is power grid project design information which is input in advance and mainly comprises two-dimensional project design information, three-dimensional project design information and three-dimensional terrain information. The two-dimensional engineering design information mainly refers to a two-dimensional engineering design drawing, such as a CAD design drawing and the like, the three-dimensional engineering design information mainly refers to a three-dimensional engineering design model, such as a GIM engineering design model, and the three-dimensional terrain information mainly refers to a three-dimensional terrain model, such as a GIS three-dimensional terrain model. In this embodiment, the design information of the power grid project to be reviewed mainly refers to three-dimensional project design information, and the three-dimensional project design information is displayed in an editable three-dimensional model, i.e., a GIM project design model, through a display module.
The evaluation expert selects the insulator to be evaluated according to the displayed editable three-dimensional model, and the method specifically comprises the following steps:
s11: selecting a strain section to be evaluated from the editable three-dimensional model;
s12: selecting a single foundation tower to be evaluated from the tension resistant section to be evaluated;
s13: and selecting a suspension insulator from the single foundation tower to be evaluated, and taking the suspension insulator as the insulator to be evaluated.
In this embodiment, the review expert mainly selects the insulator, which mainly refers to a suspension insulator, through a selection module. In the evaluation process, firstly, a selection module can be used for selecting a strain section in the power transmission line project to be evaluated, then, a selection module is used for selecting a single-base tower in the strain section, and then, a selection module is used for selecting a suspension insulator in the single-base tower, namely, the selection of the insulator to be evaluated in the power transmission line project to be evaluated is completed through the steps.
S2: and determining the maximum wind deflection angle and the allowable charged gap of the insulator to be evaluated.
The method for determining the maximum wind deflection angle of the insulator to be evaluated specifically comprises the steps of selecting a preset calculation formula, meteorological characteristic information and tower head characteristic information through a selection module, and obtaining the maximum wind deflection angle according to the preset calculation formula, the meteorological characteristic information and the tower head characteristic information.
And respectively calculating the maximum wind deflection angle of the insulator to be evaluated according to a preset calculation formula of the determined maximum wind deflection angle of the insulator to be evaluated. In this embodiment, the maximum wind deflection angle is obtained mainly by the calculation module according to the meteorological characteristic information and the tower head characteristic information and according to a wind deflection angle calculation method. The wind deflection angle calculation method may be specifically selected according to actual use conditions, and for example, may be as follows:
a＝tg-[(P1/2)+PLh]/[(G1/2)+WLv]
wherein, a suspension insulator string wind deflection angle (degree), G1For hanging insulator string deadweight (N), LhFor tower horizontal span (M), LvIs the vertical span (M) of the tower, W is the self-gravity (N/M) of the wire, P is the wind load (N/M) of the wire, P is1The suspension insulator string wind pressure (N).
Wherein, P1＝9.81A1V2V is calculated asThe wind speed (M/S) is used, A1 is the wind area (M2) of the insulator string; p-0.625 ABDV210-3V is the wind speed (M/S) used in the calculation, A is the coefficient of wind speed unevenness, D is the diameter of the wire, and B is the coefficient of wire body shape.
The meteorological characteristic information refers to meteorological environment condition information of the power transmission line engineering tower head to be evaluated, and comprises one or a combination of at least two of wire wind load, suspension insulator string wind pressure, wind speed, wind area of the suspension insulator string and wind speed uneven coefficient, and the evaluation system judges the environmental condition of the power transmission line engineering tower head to be evaluated by inputting the meteorological characteristic information, so that an evaluation expert can evaluate whether the design of the power transmission line engineering tower head in the power transmission line engineering to be evaluated is reasonable or not according to the meteorological condition information.
The tower head characteristic information refers to the information of the power transmission line engineering tower head to be evaluated, specifically comprises a working mode and the like, and the evaluation system extracts the tower head characteristic information from the design information of the power grid engineering to be evaluated, so that an evaluation expert can evaluate whether the engineering design information of the tower head is reasonable or not by combining the weather condition information of the tower head. And a review expert can obtain the working mode of the suspension insulator by selecting the working mode of the module suspension insulator, wherein the working mode comprises an external overvoltage, an internal overvoltage, live working and operating voltage. In addition, other design information of the tower head can be obtained through three-dimensional engineering design information, for example, the self weight of the suspension insulator string, the horizontal span of the tower, the vertical span of the tower, the self gravity of the conductor, the diameter of the conductor, the body shape coefficient of the electric wire and the like, and such information is included in the three-dimensional engineering design information.
Specifically, the determining of the allowable charged gap of the insulator to be evaluated is to extract a design charged gap of the insulator to be evaluated from the design information; and adding the designed charged gap and a preset allowable deviation to obtain the allowable charged gap.
The design charged gap is considered to be a designed charged gap according to engineering requirements, the preset allowable deviation is a safety gap distance artificially designed according to actual conditions, namely, the preset allowable deviation is a distance which is used for preventing a certain error from existing in the calculation or analysis process and causing inaccurate generation of a gap ball, and in order to ensure the accurate radius of the gap ball and ensure that an overhang insulator and a tower head keep absolute safety, therefore, the preset allowable deviation is artificially increased and can be designed according to industrial experience, in the embodiment, the preset allowable deviation is 0.05m, and when the preset allowable deviation does not need to be designed, the preset allowable deviation is 0 m.
S3: and determining the sphere center of the gap sphere of the insulator to be evaluated according to the maximum wind deflection angle, and determining the radius of the gap sphere of the insulator to be evaluated according to the allowable charged gap.
S31: determining the center of the gap ball of the insulator to be evaluated according to the maximum wind deflection angle, and specifically comprising the following steps:
s311: and determining the maximum windage yaw position of the insulator to be evaluated according to the maximum windage yaw angle.
The natural position of the suspension insulator under ideal meteorological conditions and no wind conditions is used as the initial position, which is the position of the suspension insulator perpendicular to the horizontal plane in this embodiment. And taking the position of the suspension insulator, which has the included angle with the initial position along the wind direction as the maximum windage yaw position, and placing the suspension insulator at the maximum windage yaw position according to the maximum windage yaw angle. It should be noted that the maximum windage yaw position is not fixed and unchanged, and if the input meteorological characteristic information and/or the tower head characteristic information changes, the maximum windage yaw angle obtained in the calculation module changes correspondingly, so that the maximum windage yaw position changes correspondingly.
S312: and hanging the insulator to be evaluated at the maximum windage yaw position, extracting a hanging point of the insulator to be evaluated at the maximum windage yaw position, and taking the hanging point as the sphere center of the gap sphere.
After the suspension insulator is at the maximum wind offset position, the suspension insulator hanging point is taken as a sphere center, and the suspension point of the suspension insulator is a contact point of the suspension insulator and the power transmission line, namely the position where the suspension insulator hangs the power transmission line, which is specifically shown as a point a in fig. 2.
S32: and determining the radius of the gap ball of the insulator to be evaluated according to the allowable charged gap, wherein the radius of the three-dimensional model of the gap ball is specifically shown as R1 in FIG. 2.
S4: the generating module generates the three-dimensional model of the clearance ball in the editable three-dimensional model according to the center and the radius of the clearance ball. The three-dimensional model of the clearance sphere is shown at 31 in fig. 2.
Further, the three-dimensional model of the clearance ball performs preset circular motion. Judging whether the three-dimensional model of the clearance ball collides with the tower head when performing the circular motion, and if so, outputting first prompt information; if not, outputting second prompt information. The first prompt message comprises displaying the three-dimensional model of the clearance ball in a first color; the second prompt message comprises displaying the three-dimensional model of the clearance ball in a second color; wherein the first color is different from the second color. In this embodiment, the first color is red, and the second color is green.
The preset circular motion of the three-dimensional model of the clearance ball is specifically as follows: determining the circle center and the radius of the circular motion according to the maximum windage yaw position and the initial position of the insulator to be evaluated; and the three-dimensional model of the clearance ball makes the circular motion by the circle center and the radius.
The movement of the three-dimensional model of the clearance ball according to a preset rule is a movement mode set according to actual construction review experience, and in the embodiment, the preset rule is circular movement. Determining the circle center and the radius of the circular motion according to the maximum windage yaw position and the initial position of the insulator to be evaluated; the three-dimensional model of the clearance ball makes the circular motion by using the circle center and the radius, the angle range of the circular motion can be set according to the actual situation, for example, 0-90 degrees and 0-45 degrees, in the embodiment, the angle range of the circular motion is 0-360 degrees, namely, the circular motion is performed completely, specifically:
determining the circle center of the circular motion: the suspension insulator is at the maximum windage yaw position, a perpendicular line is drawn from a hanging point of the suspension insulator to the initial position of the suspension insulator, and the obtained perpendicular point is taken as the center of a circle of circular motion, which is specifically shown as a point B in fig. 2. Determining the radius of the circular motion: the suspension insulator is in the maximum windage yaw position, and the vertical distance from the suspension point of the suspension insulator to the initial position of the suspension insulator is taken as the radius of the circular motion, which is specifically shown as R2 in fig. 2. And generating a circumference according to the circle center and the radius of the circular motion, wherein the sphere center of the three-dimensional model of the clearance sphere moves along a circular track formed by the circle center and the radius, so that the three-dimensional model of the clearance sphere makes circular motion.
By the method, the gap ball three-dimensional model image can be displayed, and meanwhile, the animation of the gap ball three-dimensional model moving according to the preset rule can be displayed, so that a review expert can more visually observe the possible moving state of the gap ball three-dimensional model along with the movement of the insulator to be reviewed, whether the suspension insulator has the risk of touching the tower head or not is judged according to the possible moving state of the insulator to be reviewed, and the review accuracy of the expert is improved.
S5: the evaluation module generates an evaluation report of the insulator to be evaluated according to the three-dimensional model of the gap ball, and the evaluation report specifically comprises the following steps:
s51: and making the three-dimensional model of the clearance ball perform preset circular motion, specifically: determining the circle center and the radius of the circular motion according to the maximum windage yaw position and the initial position of the insulator to be evaluated; and the three-dimensional model of the clearance ball makes the circular motion by the circle center and the radius.
S52: judging whether the three-dimensional model of the clearance ball collides with the tower head when performing the circular motion, and if so, outputting first prompt information; if not, outputting second prompt information. The first prompt message comprises displaying the three-dimensional model of the clearance ball in a first color; the second prompt message comprises displaying the three-dimensional model of the clearance ball in a second color; wherein the first color is different from the second color. In this embodiment, the first color is red, and the second color is green.
In the movement process, if the three-dimensional gap ball model does not touch the tower head, the three-dimensional gap ball model is displayed in green, as shown in 31 in fig. 2, the risk that the suspension insulator does not touch the tower head is shown, and the design of the power transmission line engineering tower head is reasonable; if the three-dimensional model of the gap ball touches the tower head, the three-dimensional model of the gap ball is displayed in red, as shown in 32 in fig. 2, it indicates that the suspension insulator has a risk of touching the tower head, and the design of the power transmission line engineering tower head may be unreasonable.
S53: and generating a review report of the insulator to be reviewed according to the first prompt message or the second prompt message.
The review report comprises at least two gap ball three-dimensional model images, wherein the at least two gap ball three-dimensional model images are gap ball three-dimensional model images when the gap ball three-dimensional model moves to different positions, and the different positions can be determined according to actual use conditions, for example, every other degree of positions in circular motion, namely the review report displays 360 gap ball three-dimensional model images; if the gap ball three-dimensional model touches the tower head in the circular motion process, the evaluation report needs to include the image, namely the evaluation report includes a first gap ball three-dimensional model image and a second gap ball three-dimensional model image, the first gap ball three-dimensional model image is an image when the gap ball three-dimensional model does not touch the tower head, namely a green gap ball three-dimensional model image, and the second gap ball three-dimensional model image is an image when the gap ball three-dimensional model touches the tower head, namely a red gap ball three-dimensional model image.
Example 2
The embodiment provides a power grid project review system, as shown in fig. 3, the system includes a display module 3, configured to display an editable three-dimensional model of a power grid project to be reviewed according to design data of the power grid project to be reviewed;
the selection module 1 is used for selecting insulators to be evaluated from the displayed editable three-dimensional model;
a calculating module 4, for determining the maximum wind deflection angle and the allowable charged gap of the insulator to be evaluated, and,
the calculation module 4 is further configured to determine a sphere center of a gap ball of the insulator to be evaluated according to the maximum wind drift angle, and determine a radius of the gap ball of the insulator to be evaluated according to the allowable charged gap;
the generating module 2 is used for generating the three-dimensional model of the clearance ball in the editable three-dimensional model according to the center and the radius of the clearance ball;
and the evaluation module 5 is used for generating an evaluation report of the insulator to be evaluated according to the three-dimensional model of the gap ball.
In addition, the system also comprises an identity authentication module and an input module, wherein the identity authentication module is used for authenticating the identity of the user, if the identity is matched with a preset value, the system is allowed to be used, and if the identity is not matched with the preset value, the system is refused not to be allowed to be used; the input module is used for inputting engineering design information, review rules, review opinions and display control commands, wherein the engineering design information comprises two-dimensional engineering design information, three-dimensional engineering design information and three-dimensional terrain information.
In the using process, the identity authentication module compares the user name and the password with a preset user name and a preset password, if the user name and the password are the same, the access is allowed, and if the user name and the password are different, the access is denied. After the login of the user of the evaluation organization personnel is successful, the evaluation rule is input through the input module, and the evaluation rule is related information of evaluation standards, index requirements, format requirements, scoring standards and the like of the power grid engineering design and comprises a two-dimensional engineering design evaluation rule and a three-dimensional engineering design evaluation rule.
After a designer user successfully logs in, engineering design information is input through an input module, wherein the engineering design information comprises two-dimensional engineering design information, three-dimensional engineering design information and three-dimensional terrain information, the two-dimensional engineering design information mainly refers to a two-dimensional engineering design drawing such as a CAD design drawing, the three-dimensional engineering design information mainly refers to a three-dimensional engineering design model such as a GIM engineering design model, and the three-dimensional terrain information mainly refers to a three-dimensional terrain model such as a GIS three-dimensional terrain model.
After the review rules and the engineering design information are entered, the review expert may begin the relevant review work. After the login of the evaluation expert user is successful, a display control command is input through the input module, and the display control command carries relevant control commands such as evaluation rule calling, evaluation suggestion calling, engineering design information calling, display state switching and the like. The computing module calls related information to be displayed and sends the related information to the display module 3 for display according to an input display control command, wherein the information to be displayed comprises review rules, recorded review opinions and engineering design information, in addition, the computing module controls the display module 3 to switch corresponding display states and display modes according to the input display control command, so that review experts can acquire the related information such as the review rules to be consulted, the recorded review opinions and the engineering design information through the display module and select more suitable display states and display modes according to review requirements.
In this embodiment, the display module is mainly used for displaying the editable three-dimensional model of the power grid project to be evaluated according to the design data of the power grid project to be evaluated, that is, displaying the GIM project design model.
Furthermore, a review expert selects an insulator to be reviewed from the displayed editable three-dimensional model through a selection module, wherein the insulator mainly refers to a suspension insulator. In the evaluation process, firstly, a selection module can be used for selecting a strain section in the power transmission line project to be evaluated, then, a selection module is used for selecting a single-base tower in the strain section, and then, a selection module is used for selecting a suspension insulator in the single-base tower, namely, the selection of the insulator to be evaluated in the power transmission line project to be evaluated is completed through the steps.
And after the selection of the insulator to be evaluated is completed, the calculation module determines the maximum wind deflection angle and the allowable live clearance of the insulator to be evaluated.
In this embodiment, the calculation module obtains the maximum wind deflection angle according to the wind deflection angle calculation method and according to the meteorological characteristic information and the tower head characteristic information. The wind deflection angle calculation method can be specifically selected according to actual use conditions.
The meteorological characteristic information refers to meteorological environment condition information of the power transmission line engineering tower head to be evaluated, and comprises one or a combination of at least two of wire wind load, suspension insulator string wind pressure, wind speed, wind area of the suspension insulator string and wind speed uneven coefficient, and the evaluation system judges the environmental condition of the power transmission line engineering tower head to be evaluated by inputting the meteorological characteristic information, so that an evaluation expert can evaluate whether the design of the power transmission line engineering tower head in the power transmission line engineering to be evaluated is reasonable or not according to the meteorological condition information.
The tower head characteristic information refers to the information of the power transmission line engineering tower head to be evaluated, specifically comprises a working mode and the like, and the evaluation system extracts the tower head characteristic information from the design information of the power grid engineering to be evaluated, so that an evaluation expert can evaluate whether the engineering design information of the tower head is reasonable or not by combining the weather condition information of the tower head. And a review expert can obtain the working mode of the suspension insulator by selecting the working mode of the module suspension insulator, wherein the working mode comprises an external overvoltage, an internal overvoltage, live working and operating voltage. In addition, other design information of the tower head can be obtained through three-dimensional engineering design information, for example, the self weight of the suspension insulator string, the horizontal span of the tower, the vertical span of the tower, the self gravity of the conductor, the diameter of the conductor, the body shape coefficient of the electric wire and the like, and such information is included in the three-dimensional engineering design information.
Further, the calculation module extracts the design charged gap of the insulator to be evaluated from the design information; and adding the designed charged gap and a preset allowable deviation to obtain the allowable charged gap.
And then, the calculation module determines the sphere center of the gap sphere of the insulator to be evaluated according to the maximum wind deflection angle and determines the radius of the gap sphere of the insulator to be evaluated according to the allowable charged gap. The generating module generates the gap ball three-dimensional model in the editable three-dimensional model according to the sphere center and the radius of the gap ball, and the display module displays the gap ball three-dimensional model, so that a review expert can visually review the insulator to be reviewed.
The display module can further perform dynamic display in the process of displaying the three-dimensional model of the clearance ball, namely, the three-dimensional model of the clearance ball performs preset motion. The gap ball three-dimensional model moves according to the preset rule, so that a review expert can more visually observe the possible motion state of the gap ball three-dimensional model along with the motion of the suspension insulator, whether the suspension insulator has the risk of touching the tower head is judged according to the possible motion state of the suspension insulator, and the review accuracy of the expert is improved.
The preset rule of the three-dimensional model of the clearance ball is a motion mode set according to actual construction review experience, in this embodiment, the preset rule is circular motion, the angular range of the circular motion can be set according to actual conditions, such as 0-90 ° and 0-45 °, in this embodiment, the angular range of the circular motion is 0-360 °, and the preset circular motion is specifically: determining the circle center and the radius of the circular motion according to the maximum windage yaw position and the initial position of the insulator to be evaluated; and the three-dimensional model of the clearance ball makes the circular motion by the circle center and the radius.
The natural position of the suspension insulator under ideal meteorological conditions and no wind conditions is used as the initial position, which is the position of the suspension insulator perpendicular to the horizontal plane in this embodiment. And taking the position of the suspension insulator, which has the largest wind deflection angle with the initial position along the wind direction, as the maximum wind deflection position.
The calculation module determines the circle center and the radius of the circular motion according to the maximum windage yaw position and the initial position of the insulator to be evaluated, and the display module displays the circular motion of the three-dimensional model of the gap ball according to the circle center and the radius.
Specifically, the suspension insulator is positioned at the maximum windage yaw position through a calculation module, a perpendicular line is drawn from a hanging point of the suspension insulator to the initial position of the suspension insulator, and the obtained perpendicular point is used as the circle center of circular motion; the suspension insulator is at the maximum windage yaw position, and the vertical distance from the suspension point of the suspension insulator to the initial position of the suspension insulator is taken as the radius of circular motion. In the display module, the center of the three-dimensional model of the clearance ball moves along a circular track formed by the circle center and the radius, so that the three-dimensional model of the clearance ball does circular motion.
The calculation module judges whether the three-dimensional model of the clearance ball collides with the tower head when the three-dimensional model of the clearance ball does circular motion, if so, the display module outputs first prompt information; if not, the display module outputs second prompt information. The first prompt message comprises displaying the three-dimensional model of the clearance ball in a first color; the second prompt message comprises displaying the three-dimensional model of the clearance ball in a second color; wherein the first color is different from the second color. In this embodiment, the first color is red, and the second color is green.
Namely, in the motion process of the three-dimensional model of the gap ball, if the three-dimensional model of the gap ball does not touch the tower head, the three-dimensional model of the gap ball is displayed in green, the risk that the suspension insulator does not touch the tower head is shown, and the design of the engineering tower head of the power transmission line is reasonable; and if the three-dimensional model of the gap ball touches the tower head, the three-dimensional model of the gap ball is displayed in red, the risk that the suspension insulator touches the tower head is shown, and the design of the power transmission line engineering tower head may have unreasonable parts.
And finally, generating a review report of the insulator to be reviewed by a review module according to the three-dimensional model of the gap ball. The review report comprises at least two gap ball three-dimensional model images, wherein the at least two gap ball three-dimensional model images are gap ball three-dimensional model images when the gap ball three-dimensional model moves to different positions, and the different positions can be determined according to actual use conditions, for example, every other degree of positions in circular motion, namely the review report displays 360 gap ball three-dimensional model images; if the gap ball three-dimensional model touches the tower head in the circular motion process, the evaluation report needs to include the image, namely the evaluation report includes a first gap ball three-dimensional model image and a second gap ball three-dimensional model image, the first gap ball three-dimensional model image is an image when the gap ball three-dimensional model does not touch the tower head, namely a green gap ball three-dimensional model image, and the second gap ball three-dimensional model image is an image when the gap ball three-dimensional model touches the tower head, namely a red gap ball three-dimensional model image.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (10)

1. A method for reviewing a power grid project, the method comprising:
displaying the power grid project to be evaluated in an editable three-dimensional model according to the design information of the power grid project to be evaluated, and selecting an insulator to be evaluated from the displayed editable three-dimensional model;
determining the maximum wind deflection angle and the allowable charged gap of the insulator to be evaluated;
determining the center of a gap ball of the insulator to be evaluated according to the maximum wind deflection angle, and determining the radius of the gap ball of the insulator to be evaluated according to the allowable charged gap;
generating the three-dimensional model of the clearance ball in the editable three-dimensional model according to the center and the radius of the clearance ball;
and generating a review report of the insulator to be reviewed according to the three-dimensional model of the gap ball.
2. The method of claim 1, wherein the determining the maximum wind deflection angle of the insulator under evaluation comprises:
and respectively calculating the maximum wind deflection angle of the insulator to be evaluated according to a preset calculation formula of the wind deflection angle.
3. The method of claim 1, wherein said determining an allowable live gap for said insulator under evaluation comprises:
extracting the design charged gap of the insulator to be evaluated from the design information;
and adding the designed charged gap and a preset allowable deviation to obtain the allowable charged gap.
4. The method according to any one of claims 1-3, wherein the selecting of insulators to be reviewed from the displayed editable three-dimensional model comprises:
selecting a strain section to be evaluated from the editable three-dimensional model;
selecting a single foundation tower to be evaluated from the tension resistant section to be evaluated;
and selecting a suspension insulator from the single foundation tower to be evaluated, and taking the suspension insulator as the insulator to be evaluated.
5. The method according to any one of claims 1-3, wherein the determining the center of the gap ball of the insulator under evaluation according to the maximum wind deflection angle comprises:
determining the maximum windage yaw position of the insulator to be evaluated and examined according to the maximum windage yaw angle;
and hanging the insulator to be evaluated at the maximum windage yaw position, extracting a hanging point of the insulator to be evaluated at the maximum windage yaw position, and taking the hanging point as the sphere center of the gap sphere.
6. The method according to any one of claims 1-3, wherein the generating a review report of the insulator to be reviewed according to the three-dimensional model of the gap ball comprises:
making the three-dimensional model of the clearance ball perform preset circular motion;
judging whether the three-dimensional model of the clearance ball collides with the tower head when performing the circular motion, and if so, outputting first prompt information; if not, outputting second prompt information;
and generating a review report of the insulator to be reviewed according to the first prompt message or the second prompt message.
7. The method of claim 6, wherein the first prompt comprises displaying the three-dimensional model of the gapping sphere in a first color;
the second prompt message comprises displaying the three-dimensional model of the clearance ball in a second color;
wherein the first color is different from the second color.
8. The method according to claim 6, wherein the performing the predetermined circular motion on the three-dimensional model of the clearance ball is specifically:
determining the circle center and the radius of the circular motion according to the maximum windage yaw position and the initial position of the insulator to be evaluated;
and the three-dimensional model of the clearance ball makes the circular motion by the circle center and the radius.
9. A review system for grid engineering, comprising:
the display module is used for displaying the power grid project to be evaluated in an editable three-dimensional model according to the design information of the power grid project to be evaluated;
the selection module is used for selecting insulators to be evaluated from the displayed editable three-dimensional model;
a calculation module for determining the maximum wind deflection angle and the allowable charged gap of the insulator to be evaluated, and,
the calculation module is further used for determining the sphere center of the gap sphere of the insulator to be evaluated according to the maximum wind deflection angle and determining the radius of the gap sphere of the insulator to be evaluated according to the allowable charged gap;
the generating module is used for generating the three-dimensional model of the clearance ball in the editable three-dimensional model according to the center and the radius of the clearance ball;
and the evaluation module is used for generating an evaluation report of the insulator to be evaluated according to the three-dimensional model of the gap ball.
10. An electronic device, comprising:
one or more processors;
a storage unit for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to carry out the method according to any one of claims 1-8.
CN202010337305.7A 2020-04-26 2020-04-26 Method and system for power grid engineering three-dimensional design review Active CN111401862B (en)

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CN102663826A (en) * 2012-02-29 2012-09-12 国网北京经济技术研究院 Power transmission project design review method assisted by grid holographic digital map system

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CN101714748A (en) * 2009-10-12 2010-05-26 中国电力科学研究院 Method and system for determining serial and parallel connection gaps of overhead power transmission line insulators
CN102446228A (en) * 2010-09-30 2012-05-09 深圳市雅都软件股份有限公司 Three-dimensional space visualized display method and system of transmission line
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