CN111539059A - Phase line distance evaluation method and device for power transmission overhead line - Google Patents
Phase line distance evaluation method and device for power transmission overhead line Download PDFInfo
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Abstract
A method and a device for evaluating phase line distance of a power transmission overhead line are disclosed, the method comprises the following steps: acquiring a GIM file of a power transmission and transformation project, and analyzing to obtain a corresponding three-dimensional design model and GIM project data; acquiring a calibration range of a phase line distance of the power transmission overhead line; acquiring design parameters in the verification range from the GIM engineering data, wherein the design parameters comprise meteorological information, lead information of three phase lines and lead attribute information; calculating the sag of each phase line strain section under the current meteorological condition according to the design parameters, and adjusting the display posture of the corresponding phase line according to the calculated sag; calculating the phase line distance between adjacent phase lines under the current meteorological condition, and comparing the phase line distance with the standard phase line distance under the current meteorological condition; and when the phase line distance is greater than the standard phase line distance, determining that the phase line distance of the power transmission overhead line meets the requirement.
Description
Technical Field
The invention relates to the field of power transmission line design, in particular to a method and a device for evaluating phase line distance of a power transmission overhead line.
Background
The digital three-dimensional design is the basis of a new generation of intelligent design platform, and the popularization of the digital three-dimensional design in the power industry is a necessary trend for future development. With the development of modern technology, the integration of design services and informatization means is increasing, and the digital design taking three-dimensional design as a core becomes a main axis throughout the whole process and the whole life cycle of engineering.
The visualization degree of the digital three-dimensional design of the power grid engineering is greatly improved, a review expert can visually see the model in the power grid engineering, the safety and the accuracy of the digital design of the power grid engineering are important indexes of the power grid engineering, and the review needs to be carried out by the expert.
The safety of the phase line distance of the lead is particularly important in power grid engineering design, A, B, C three phase lines are arranged on a common power transformation line iron tower and are arranged in parallel, and the distance between two adjacent phase lines has design requirements, and if the distance is not consistent with the requirement, the safety of a power grid is influenced. As the safety check of the phase line distance of the three-dimensional design of the power grid engineering needs to carry out a large amount of digital operation according to meteorological conditions, geological parameters and design parameters, an effective numerical value can be obtained. The calculation is complex, a large amount of time for a design expert is needed for calculation, manual checking is difficult to perform in a short time, the process is complicated, and the calculation amount is large.
Disclosure of Invention
In view of the above situation, it is necessary to provide a method and an apparatus for evaluating a phase distance of an overhead line, aiming at the problems of low efficiency and low accuracy of evaluating the phase distance of the overhead line in the prior art.
The embodiment of the invention provides a phase line distance evaluation method for a power transmission overhead line, which comprises the following steps:
acquiring a GIM file of a power transmission and transformation project, and analyzing to obtain a corresponding three-dimensional design model and GIM project data;
acquiring a calibration range of a phase line distance of the power transmission overhead line;
acquiring design parameters in the verification range from the GIM engineering data, wherein the design parameters comprise meteorological information, lead information of three phase lines and lead attribute information;
calculating the sag of each phase line strain section under the current meteorological condition according to the design parameters, and adjusting the display posture of the corresponding phase line according to the calculated sag;
calculating the phase line distance between adjacent phase lines under the current meteorological condition, and comparing the phase line distance with the standard phase line distance under the current meteorological condition;
and when the phase line distance is greater than the standard phase line distance, determining that the phase line distance of the power transmission overhead line meets the requirement.
Further, in the method for reviewing the phase line distance of the power transmission overhead line, the step of calculating the sag of each phase line strain section under the current meteorological condition according to the design parameters includes:
and calculating the maximum sag of the span center of each phase line strain section under the current meteorological condition according to the design parameters, and taking the maximum sag as the sag of the phase line.
Further, in the method for evaluating the phase line distance of the power transmission overhead line, the calculation formula of the span center maximum sag of the conductor of the tension resistant section is as follows:
Further, the method for evaluating the phase line distance of the power transmission overhead line, wherein the step of calculating the phase line distance between adjacent phase lines and comparing the phase line distance with the standard phase line distance under the current meteorological condition further comprises the following steps:
and inquiring standard phase line distance data corresponding to the voltage grade in the rule base, wherein the standard phase line distance data comprises standard phase line distances between adjacent phase lines under each meteorological condition.
Further, the method for evaluating the phase line distance of the power transmission overhead line, wherein the calculating the phase line distance between adjacent phase lines includes:
and taking position points on each phase line tension section conductor at preset distance intervals, calculating the distance between corresponding position points between adjacent phase lines, and taking the calculated minimum distance as the phase line distance between the adjacent phase lines.
Further, the method for evaluating the phase line distance of the power transmission overhead line, wherein the step of calculating the phase line distance between adjacent phase lines and comparing the phase line distance with the standard phase line distance under the current meteorological condition further comprises the following steps:
and making a verification report according to the comparison result.
The embodiment of the invention also provides a device for evaluating the phase line distance of the power transmission overhead line, which comprises the following components:
the first acquisition module is used for acquiring a GIM file of a power transmission and transformation project;
the analysis module is used for analyzing the GIM file to obtain a corresponding three-dimensional design model and GIM engineering data;
the second acquisition module is used for acquiring the check range of the phase line distance of the power transmission overhead line;
the extraction module is used for acquiring design parameters in the verification range from the GIM engineering data, wherein the design parameters comprise meteorological information, lead information of three phase lines and lead attribute information;
the first calculation module is used for calculating the sag of each phase line strain section under the current meteorological condition according to the design parameters and adjusting the display posture of the corresponding phase line according to the calculated sag;
the second calculation module is used for calculating the phase line distance between adjacent phase lines under the current meteorological condition;
and the comparison confirmation module is used for comparing the phase line distance with the standard phase line distance under the current meteorological condition, and when the phase line distance is greater than the standard phase line distance, determining that the phase line distance of the power transmission overhead line meets the requirement.
Further, in the above power transmission overhead line phase line distance review device, the first calculation module is specifically configured to:
and calculating the maximum sag of the span center of each phase line strain section under the current meteorological condition according to the design parameters, and taking the maximum sag as the sag of the phase line.
Further, the above-mentioned transmission overhead line phase line distance review device still includes:
and the query module is used for querying standard phase line distance data corresponding to the voltage grade in the rule base, wherein the standard phase line distance data comprises standard phase line distances between adjacent phase lines under each meteorological condition.
Further, the above-mentioned transmission overhead line phase line distance review device still includes:
and the report making module is used for making a verification report according to the comparison result.
In the embodiment of the invention, through automatically acquiring GIM engineering data in a three-dimensional design model of the power transmission and transformation engineering, acquiring design parameters in a verification range from the GIM engineering data, calculating the sag of the conductor of the strain section under each meteorological condition according to the design parameters, adjusting the display posture of the corresponding phase line according to the calculated sag, calculating the phase line distance between adjacent phase lines under the meteorological condition, comparing the phase line distance with the standard phase line distance, and determining whether the phase line distance of the power transmission overhead line meets the design requirement or not according to the comparison result. The method simplifies the evaluation process and improves the evaluation efficiency and accuracy of the engineering model.
Drawings
Fig. 1 is a flowchart of a phase line distance evaluation method for a power transmission overhead line according to a first embodiment of the present invention;
fig. 2 is a flowchart of a phase line distance evaluation method for a power transmission overhead line according to a second embodiment of the present invention;
fig. 3 is a block diagram of a phase distance evaluation device for an overhead line according to a third embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited correspondingly. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Referring to fig. 1, a method for evaluating a phase line distance of a power transmission overhead line according to a first embodiment of the present invention includes steps S11-S16.
And step S11, acquiring a GIM file of the power transmission and transformation project, and analyzing to obtain a corresponding three-dimensional design model and GIM project data.
In this embodiment, a power transmission and transformation station model designed by the designer adopts a file format unified by the national grid, such as a GIM file. After the user imports the GIM file of the power transmission and transformation project, the server analyzes the hierarchical information of the GIM file one by one according to the storage format of the GIM in the interaction specification, so that a three-dimensional design model of the power transmission and transformation station model is obtained, the three-dimensional design model of the power transmission and transformation station is visually displayed on a view interface, and the user can visually see the framework of the power transmission and transformation exhibition model. In addition, after the GIM file is analyzed, GIM engineering data including weather information, conductor information and conductor attribute information of each phase conductor strain section are obtained. The wire information of the strain section comprises information such as a wire model, a wire K value, a ground wire model, a ground wire K value, a representative span and the like, and the wire attribute information comprises data such as an outer diameter, an elastic coefficient, a wire section, a linear expansion coefficient, a breaking force, unit mass and the like. And the meteorological information comprises high temperature, low temperature, strong wind, icing, annual average, external passing (thunder), internal passing (operation), installation and the like.
Step S12, a verification range of the power transmission overhead line phase line distance is acquired.
The checking range is information input by a user, and the user can select to check the overhead line phase line distance of a certain project, or a certain strain section or tower.
And step S13, obtaining design parameters in the verification range from the GIM engineering data, wherein the design parameters comprise meteorological information, conductor information of three phase lines and conductor attribute information.
And extracting corresponding design parameters in the GIM engineering data according to the checking range selected by the user, wherein the design parameters comprise meteorological information, conductor information of strain sections of each phase line and conductor attribute information in the checking range.
And step S14, calculating the sag of each phase line strain section under the current meteorological condition according to the design parameters, and adjusting the display posture of the corresponding phase line according to the calculated sag.
The meteorological conditions affect the display postures of the phase lines, and the display postures of the phase lines under different meteorological conditions are different, so that the distances of the phase lines calculated under different meteorological conditions are different. Therefore, in the embodiment, the current meteorological condition is determined first, and the presentation attitude of the phase line is adjusted according to the sag under the meteorological condition. The calculation of the sag of each phase line strain section is related to meteorological conditions, such as different conductor sag calculated under the conditions of strong wind, high temperature and low temperature or under the conditions of strong wind and high temperature. After the design parameters are obtained, the maximum sag of the wire of the strain section under each meteorological condition can be calculated according to the design parameters.
Specifically, the maximum sag of the span center of each phase line strain section is calculated according to a sag calculation algorithm of the maximum sag. The calculation formula of the span central maximum sag of the wire of the strain section is as follows:
Further, the stress calculation formula under the current meteorological condition is as follows:
Setting:
setting:
then: sigman 2(σn-A)＝B；
Let a be | a |, B be B,
calculating corresponding values, selecting root-finding formula in table 1, and calculating horizontal stress sigma of each point of the wiren。
TABLE 1
In the above calculation formula of the maximum sag of the center of the span, the specific load gnThe value of (A) is related to meteorological conditions, and specific load in the absence of ice, icing, wind, and the likeThe values are different.
And step S15, calculating the phase line distance between adjacent phase lines, and comparing the distance with the standard phase line distance under the current meteorological condition.
And step S16, when the phase line distance is larger than the standard phase line distance, determining that the phase line distance of the power transmission overhead line meets the requirement.
The general transformer substation iron tower is provided with A, B, C three phase lines which are arranged in parallel, the distance between two adjacent phase lines in the three phase lines has design requirements, and the distance between the two adjacent phase lines is too large and cannot be too short.
And after determining the sag of the strain section in each phase line, adjusting the display posture of the corresponding phase line according to the sag, and calculating the phase line distance between the phase lines after posture adjustment. The strain sections in the three phase lines are correspondingly arranged, and the distance between corresponding position points of the strain sections of the two adjacent phase lines is calculated, so that the phase line distance between the two phase lines can be obtained.
And comparing the standard phase line distance corresponding to the phase line distance of the strain section calculated under the current meteorological condition, calculating a difference value between the standard phase line distance and the strain section, and determining that the phase line distance of the power transmission overhead line meets the requirement when the difference value is within a threshold range.
In this embodiment, the phase line distance of the conductor of one tension section of the overhead transmission line is taken as an example for explanation, it can be understood that the tension section of the actual overhead transmission line has a plurality of conductors, and the phase line distance of each tension section conductor has the same calculation mode, so that the phase line distance of each tension section conductor can be calculated.
When the overhead transmission line is implemented, the phase line distance of each strain section conductor calculated under each meteorological condition can be presented in a table form, and strain section conductors which do not meet the requirements are marked out to form a verification report for a user to refer.
In the embodiment, the phase line distance is obtained by automatically obtaining the GIM engineering data in the three-dimensional design model of the power transmission and transformation engineering, obtaining the design parameters in the verification range from the GIM engineering data, calculating the maximum sag of the conductor of the strain section under each meteorological condition according to the design parameters, adjusting the display posture of the corresponding phase line according to the calculated sag, calculating the distance between the corresponding position points of two adjacent phase lines, comparing the distance with the standard phase line distance, and determining whether the phase line distance of the overhead power transmission line meets the design requirements according to the comparison result. The method is comprehensive in calculation, sag calculation is carried out on the condition of each working condition, the shortest value of the distance between two phases of lines is selected as the distance between the phase lines, the calculation is fast and efficient, the checking result is more visual, the calculation is more intelligent, the calculation parameters are automatically obtained by one key, sag is automatically carried out, and the distance calculation is carried out without manual calculation.
Referring to fig. 2, a method for evaluating a phase line distance of a power transmission overhead line according to a second embodiment of the present invention includes steps S21-S28.
And step S21, acquiring a GIM file of the power transmission and transformation project, and analyzing to obtain a corresponding three-dimensional design model and GIM project data.
And analyzing the GIM file of the power transmission and transformation project to obtain a corresponding three-dimensional design model and GIM project data. The GIM engineering data includes various information, such as weather information, conductor information and conductor attribute information of the strain section, and the like. The wire information of the strain section comprises information such as a wire model, a wire K value, a ground wire model, a ground wire K value, a representative span and the like, and the wire attribute information comprises data such as an outer diameter, an elastic coefficient, a wire section, a linear expansion coefficient, a breaking force, unit mass and the like. And the meteorological information comprises high temperature, low temperature, strong wind, icing, annual average, external passing (thunder), internal passing (operation), installation and the like.
Step S22, standard phase line distance data corresponding to the voltage classes are inquired in the rule base, and the standard phase line distance data comprise standard phase line distances between adjacent phase lines under various meteorological conditions.
In the actual power transmission and transformation project, various power transmission and transformation project models can be involved, and each project model sets corresponding ground distance requirements according to voltage grades. And standard ground distance data of various working models are stored in a preset rule base. And after a user imports a GIM file for acquiring the power transmission and transformation project model to be evaluated, acquiring the voltage grade of the power transmission and transformation project model from the CIM file, and inquiring standard phase line distance data corresponding to the voltage grade in a rule base.
The standard phase line distance data comprises standard phase line distances of the strain sections under each meteorological condition. The meteorological condition is at least one of high temperature, low temperature, strong wind, icing, perennial, external passing (thunder), internal passing (operation), installation and the like.
Step S23, a verification range of the power transmission overhead line phase line distance is acquired.
The checking range is information input by a user, and the user can select to check the overhead line phase line distance of a certain project, or a certain strain section or tower.
And step S24, obtaining design parameters in the verification range from the GIM engineering data, wherein the design parameters comprise meteorological information, conductor information of three phase lines and conductor attribute information.
And step S25, calculating the sag of each phase line strain section under the current meteorological condition according to the design parameters, and adjusting the display posture of the corresponding phase line according to the calculated sag.
The sag of each phase line strain section is related to meteorological conditions, such as high wind, high temperature and low temperature conditions or different calculated conductor sag under the high wind and high temperature conditions. After the design parameters are obtained, the maximum sag of the wire of the strain section under each meteorological condition can be calculated according to the design parameters.
During specific implementation, the maximum sag of the span center of the wire of the strain section can be calculated according to the sag calculation algorithm of the maximum sag.
And step S26, taking the position points on each phase line tension resistant section wire at preset distance intervals, calculating the distance between the corresponding position points between the adjacent phase lines, and taking the calculated minimum distance as the phase line distance between the adjacent phase lines.
The preset distance can be set according to the actual situation of the overhead line, and can be set to be 50cm for example. Taking a position point on the phase line at an interval of 50cm as a calculation point, calculating the distance between corresponding position points on two adjacent phase lines, and taking the calculated minimum distance as the distance between the phase lines. During specific calculation, coordinates of corresponding position points A and B on the tension section wires of two adjacent phase lines can be obtained, and a distance calculation formula between the points AB is as follows:
wherein x is1，y1And z1Respectively, the longitude, latitude and elevation of the position point A; x is the number of2，y2And z2Longitude, latitude, and elevation of location point B, respectively.
And step S27, comparing the phase line distance with the standard phase line distance under the current meteorological condition, and determining that the phase line distance of the power transmission overhead line meets the requirement when the phase line distance is greater than the standard phase line distance.
And step S28, creating a verification report according to the comparison result.
Wherein the verification report comprises the shortest distance between the conductors of each phase under each meteorological condition, a standard value and a verification result.
The embodiment can automatically extract information from the three-dimensional design model, calculate the phase line distance of the conductor of the strain section according to the extracted information, compare the phase line distance with a standard design standard value, provide a check report of phase line distance check, rapidly assist review experts to judge, and provide review efficiency.
Referring to fig. 3, an embodiment of the present invention further provides a device for evaluating a phase line distance of a power transmission overhead line, including:
the first acquisition module 10 is used for acquiring a GIM file of a power transmission and transformation project;
the analysis module 20 is used for analyzing the three-dimensional design model of the power transmission and transformation project to obtain GIM project data;
a second obtaining module 30, configured to obtain a calibration range of a phase line distance of the power transmission overhead line;
the extraction module 40 is configured to obtain design parameters in the verification range from the GIM engineering data, where the design parameters include meteorological information, conductor information of three phase lines, and conductor attribute information;
the first calculation module 50 is used for calculating the sag of each phase line strain section under the current meteorological condition according to the design parameters, and adjusting the display posture of the corresponding phase line according to the calculated sag;
the second calculating module 60 is configured to calculate a phase line distance between adjacent phase lines under the current meteorological condition;
and a comparison confirmation module 70, configured to compare the phase line distance with the standard phase line distance under the current meteorological condition, and determine that the phase line distance of the power transmission overhead line meets the requirement when the phase line distance is greater than the standard phase line distance.
Further, in the above apparatus for evaluating a phase line distance of a power transmission overhead line, the first calculating module 50 is specifically configured to:
and calculating the maximum sag of the span center of each phase line strain section under the current meteorological condition according to the design parameters, and taking the maximum sag as the sag of the phase line.
Further, the above-mentioned transmission overhead line phase line distance review device still includes:
and the query module 80 is configured to query standard phase line distance data corresponding to the voltage classes in the rule base, where the standard phase line distance data includes standard phase line distances between adjacent phase lines under each meteorological condition.
Further, the above-mentioned transmission overhead line phase line distance review device still includes:
and a report making module 90, configured to make a verification report according to the comparison result.
The implementation principle and the generated technical effects of the phase line distance evaluation device for the power transmission overhead line provided by the embodiment of the invention are the same as those of the method embodiment, and for brief description, corresponding contents in the method embodiment can be referred to where the embodiment of the device is not mentioned.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A phase line distance evaluation method for a power transmission overhead line is characterized by comprising the following steps:
acquiring a GIM file of a power transmission and transformation project, and analyzing to obtain a corresponding three-dimensional design model and GIM project data;
acquiring a calibration range of a phase line distance of the power transmission overhead line;
acquiring design parameters in the verification range from the GIM engineering data, wherein the design parameters comprise meteorological information, lead information of three phase lines and lead attribute information;
calculating the sag of each phase line strain section under the current meteorological condition according to the design parameters, and adjusting the display posture of the corresponding phase line according to the calculated sag;
calculating the phase line distance between adjacent phase lines under the current meteorological condition, and comparing the phase line distance with the standard phase line distance under the current meteorological condition;
and when the phase line distance is greater than the standard phase line distance, determining that the phase line distance of the power transmission overhead line meets the requirement.
2. The method according to claim 1, wherein said step of calculating the sag of each phase strain section under current meteorological conditions based on said design parameters comprises:
and calculating the maximum sag of the span center of each phase line strain section under the current meteorological condition according to the design parameters, and taking the maximum sag as the sag of the phase line.
3. The phase line distance review method for the overhead line of claim 2, wherein the calculation formula for the span center maximum sag of the conductor of the strain section is as follows:
4. The method according to claim 1, wherein the step of calculating the phase line distance between adjacent phase lines and comparing the phase line distance with the standard phase line distance under the current meteorological condition further comprises:
and inquiring standard phase line distance data corresponding to the voltage grade in the rule base, wherein the standard phase line distance data comprises standard phase line distances between adjacent phase lines under each meteorological condition.
5. The overhead line phase distance review method of claim 1, wherein calculating the phase distance between adjacent phases comprises:
and taking position points on each phase line tension section conductor at preset distance intervals, calculating the distance between corresponding position points between adjacent phase lines, and taking the calculated minimum distance as the phase line distance between the adjacent phase lines.
6. The method according to claim 1, wherein said step of calculating the phase line distance between adjacent phase lines and comparing the phase line distance with the standard phase line distance under the current meteorological conditions further comprises:
and making a verification report according to the comparison result.
7. The utility model provides a transmission of electricity overhead line looks line distance device of reviewing which characterized in that includes:
the first acquisition module is used for acquiring a GIM file of a power transmission and transformation project;
the analysis module is used for analyzing the GIM file to obtain a corresponding three-dimensional design model and GIM engineering data;
the second acquisition module is used for acquiring the check range of the phase line distance of the power transmission overhead line;
the extraction module is used for acquiring design parameters in the verification range from the GIM engineering data, wherein the design parameters comprise meteorological information, lead information of three phase lines and lead attribute information;
the first calculation module is used for calculating the sag of each phase line strain section under the current meteorological condition according to the design parameters and adjusting the display posture of the corresponding phase line according to the calculated sag;
the second calculation module is used for calculating the phase line distance between adjacent phase lines under the current meteorological condition;
and the comparison confirmation module is used for comparing the phase line distance with the standard phase line distance under the current meteorological condition, and when the phase line distance is greater than the standard phase line distance, determining that the phase line distance of the power transmission overhead line meets the requirement.
8. The phase line distance review device for the power transmission overhead line according to claim 7, wherein the first calculation module is specifically configured to:
and calculating the maximum sag of the span center of each phase line strain section under the current meteorological condition according to the design parameters, and taking the maximum sag as the sag of the phase line.
9. The overhead line phase distance review device according to claim 7, further comprising:
and the query module is used for querying standard phase line distance data corresponding to the voltage grade in the rule base, wherein the standard phase line distance data comprises standard phase line distances between adjacent phase lines under each meteorological condition.
10. The overhead line phase distance review device according to claim 6, further comprising:
and the report making module is used for making a verification report according to the comparison result.
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