CN113868738B - Three-dimensional design method for inclined suspension type tubular bus of transformer substation - Google Patents
Three-dimensional design method for inclined suspension type tubular bus of transformer substation Download PDFInfo
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Abstract
The invention discloses a three-dimensional design method of a transformer substation inclined suspension type tubular bus, which belongs to the technical field of transformer substations and comprises the following steps: parameters are written in the front end of the inclined suspension tubular busbar calculation device; creating an SQL basic database at the rear end of the inclined suspension tubular busbar computing device; calculating and checking the displacement and deflection of the tube bus by the inclined suspension tube bus calculating device; the inclined suspension tubular busbar model generating device generates and modifies a model. According to the invention, the model generation and calculation check are tightly combined by developing the inclined suspension tubular busbar calculation device and the inclined suspension tubular busbar model generation device, so that the generated inclined suspension tubular busbar model meets engineering design requirements, the mapping relation between the inclined suspension tubular busbar calculation data and the model entity is realized, a more effective and accurate geometric model is established, and the automatic three-dimensional design of the inclined suspension tubular busbar of the transformer substation is realized.
Description
Technical Field
The invention relates to the technical field of substations, in particular to a three-dimensional design method of a tilting suspension type tubular busbar of a substation.
Background
The inclined suspension tubular bus is a common bus arrangement type of a transformer substation, the tubular bus is suspended on a bus framework by adopting a V-shaped insulator, and the inclined suspension tubular bus has the characteristics of small sag, small windage displacement and small tension of the bus framework, and is an outdoor bus arrangement type commonly used for 220kV and above transformer substations.
In recent years, three-dimensional design of a transformer substation is gradually popularized and applied, no mature solution exists for three-dimensional design of an inclined suspension tubular busbar, and a mapping relation cannot be generated between calculation data and a model entity. At present, the following 2 design modes are generally adopted: the first mode adopts a typical engineering design scheme, the spatial relationship of the inclined suspension tube bus is determined, and a model entity is directly drawn; in the second mode, a calculation program is adopted to complete calculation, and then a result is input into three-dimensional design software to drive generation of a model entity. The two modes are used for regarding calculation and model arrangement as an integral two sides of a three-dimensional design, the calculation conditions are changed, the model is not influenced, the model adjustment does not influence the calculation input parameters, and the model finally loses application significance.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a three-dimensional design method of the inclined suspension tubular bus of the transformer substation, which realizes that the calculated data of the inclined suspension tubular bus and a model entity generate a mapping relation, establishes a more effective and accurate geometric model and realizes the automatic three-dimensional design of the inclined suspension tubular bus of the transformer substation.
In order to solve the technical problems, the invention adopts the following technical scheme:
a three-dimensional design method of a transformer substation inclined suspension type tubular bus comprises the following steps:
S1, writing parameters into the front end of a calculating device of the inclined suspension tubular busbar;
s2, creating an SQL basic database at the rear end of the inclined suspension tubular busbar computing device;
s3, calculating and checking the displacement and deflection of the bus bar of the pipe by using the inclined suspension bus bar calculating device;
s4, generating and modifying the model by the inclined suspension tubular busbar model generating device.
The technical scheme of the invention is further improved as follows: the inclined suspension tubular busbar computing device adopts browser/server mode development and comprises a computing device front-end system which is mutually separated and realizes a man-machine interaction function and a computing device rear-end system which is used for realizing a database read-write and physical parameter computing function;
The front-end system of the computing device adopts node.js as js operation environment, relies on Vue to design a front-end integral frame, adopts TYPESCRIPT as script language, adopts Less as CSS preprocessing language, adopts Element UI as UI component library, and adopts Nginx to carry out service deployment;
The back-end system of the computing device adopts SQL SERVER as a database, adopts ASP.Net Core API as a main framework, realizes ORM operation of the database through SqlSugar, and realizes a physical parameter computing function by using C# language.
The technical scheme of the invention is further improved as follows: the inclined suspension tubular busbar model generating device carries out secondary development based on an Autodesk Revit platform, comprises a model generating device front end adopting a WPF technology and a parameterized model database, and shares the rear end of a computing device with an inclined suspension tubular busbar computing device; the parameterized model database comprises an insulator string model and a tubular busbar model.
The technical scheme of the invention is further improved as follows: s2, creating an SQL basic database comprising an electrical material database and a calculation specification database;
The electrical materials in the electrical material database at least comprise insulator strings, insulator string assembly hardware fittings and tubular buses; the insulator string assembly fitting at least comprises an insulator sheet, a Z-shaped hanging plate, a U-shaped hanging ring, a WS-shaped bowl head hanging plate, a QP-shaped ball head hanging ring, a connecting plate, a parallel hanging plate, a spline bolt, a grading ring, a shielding ring and a suspension wire clamp;
the calculation specification database at least comprises a short-circuit electrodynamic unit reference value, a tubular busbar wind pressure altitude change coefficient and an altitude correction A value table of the 35-500 kV power distribution device.
The technical scheme of the invention is further improved as follows: in the electrical material database, the insulator string at least comprises the following data: assembling model numbers and assembling hardware numbers, and calling an electric material database by the assembling hardware; the assembly hardware fitting of the insulator chain at least comprises the following data: model, height, windward area and ice coating weight; the insulator sheet further includes diameter data; the tubular busbar includes at least the following data: conductor material, conductor model, conductor size, conductor linear expansion coefficient (1/°c), elastic modulus, conductor dead weight.
The technical scheme of the invention is further improved as follows: in the calculation specification database, the short-circuit electric power unit reference value data table at least comprises the following data: the three-phase short circuit and two-phase short circuit impact coefficient value kch; the wind pressure altitude change coefficient alpha of the tubular bus at least comprises the following data: a height and wind pressure coefficient value; the altitude correction A value table of the 35-500 kV power distribution device at least comprises the following data: altitude, voltage class, electrical verification of A1, A2 values.
The technical scheme of the invention is further improved as follows: s3, calculating and checking the displacement and deflection of the tube bus by the inclined suspension tube bus calculating device, wherein the method specifically comprises the following steps of:
S31, inputting environmental parameters, electrical design parameters and suspension parameters at a visual parameter input interface at the front end of the inclined suspension tubular busbar computing device;
s32, the inclined suspension tubular busbar calculation device inputs parameters according to the S31 and calls the SQL basic database in the S2 to calculate intermediate parameters;
s33, completing a preset nonlinear equation based on the output parameter and the intermediate parameter to calculate a vertical displacement value V of the tubular busbar, a horizontal displacement value D of the tubular busbar and a deflection value D of the tubular busbar;
S34, based on the output result and the SQL basic database design verification in the S2, completing parameter verification;
and S35, pushing the design input parameters of S31 and the calculation results of S33 to the inclined suspension tubular busbar model generating device under the condition that the verification is qualified based on the verification results.
The technical scheme of the invention is further improved as follows: in S31, the environmental parameters include temperature, wind speed, ice coating, altitude; the electrical design parameters comprise voltage class, short circuit current, framework span, framework width, conductor phase spacing, insulator strings and concentrated load; the suspension parameters comprise a horizontal span X, a vertical span Y, a transverse span Z, a cantilever length and a suspension height.
The technical scheme of the invention is further improved as follows: in S32, the intermediate parameters include a working condition parameter and a load parameter; the working condition parameters comprise temperature, wind speed, ice coating and short circuit current, and are divided into four working conditions of highest temperature, lowest temperature, maximum wind speed, 50% of maximum wind speed, short circuit and ice coating according to parameter values; and generating load parameters according to the working condition parameter values, the input parameters, the short-circuit electrodynamic force unit reference value kch and the pipe bus wind pressure height change coefficient alpha, wherein the load parameters comprise the vertical force F applied to the insulator string, the horizontal force H applied to the insulator string and the weight W of the insulator unit length.
The technical scheme of the invention is further improved as follows: s4, generating and modifying a model by using the inclined suspension tubular busbar model generating device, wherein the method specifically comprises the following steps of:
s41, generating an inclined suspension tubular busbar model;
s411, determining the spatial positioning of the inclined suspension tubular busbar insulator string based on the horizontal span X, the vertical span Y and the transverse span Z which are designed as input parameters in the S31;
s412, calling the information of the insulator string in the SQL basic database in S2, establishing a parameterized family of the insulator string, importing the parameterized family into a Revit software environment, and generating a V-shaped insulator string model through a parameterized driving model;
s413, based on the insulator string models in the horizontal span X, the vertical span Y, the transverse span Z and the S412 of design input parameters, performing space positioning on the tubular busbar model, and determining phase spacing, phase-to-ground distance and suspension height;
S414, driving the tubular busbar model by adopting diameter and length parameters to generate a model, and completing space arrangement according to the spatial positioning information of the tubular busbar;
S415, writing design input parameters and results into the tubular busbar model through a Extensible Storage Framework interface for storage;
s42, modifying the inclined suspension tubular busbar model;
S421, modifying the tubular bus model;
S422, modifying the insulator model.
By adopting the technical scheme, the invention has the following technical progress:
1. According to the invention, through developing the inclined suspension tubular busbar calculation device and the inclined suspension tubular busbar model generation device, the combination of inclined suspension tubular busbar calculation and model is realized, the model is bidirectionally associated with calculation, and the accuracy of the generated model is ensured.
2. The invention solves the problems of inquiring, reading and managing the data by relying on the basic database, simplifies the calculation and input work of designers, realizes the generation of a parameterized model by utilizing the data of the tubular bus and the insulator in the database, and improves the modeling efficiency.
3. The inclined suspension tubular busbar calculation device and the inclined suspension tubular busbar model generation device adopt a mode that two front ends share one rear end, so that the calculation device can operate independently and can operate in association with the model generation device, and the application requirements of multiple scenes are met.
4. The invention ensures that the generated inclined suspension tubular busbar model meets engineering design requirements by tightly combining model generation and calculation check, and realizes that when the inclined suspension tubular busbar model changes, the physical input parameters are automatically corrected and designed, and the inclined suspension tubular busbar model is adjusted after calculation; when the physical input parameters are changed, the inclined suspension tubular bus model is adjusted after calculation, so that the automatic three-dimensional design of the inclined suspension tubular bus of the transformer substation is realized.
5. The method eliminates subjectivity and randomness of the arrangement of the inclined suspension tube bus, realizes scientific arrangement through the inclined suspension tube bus calculation device and the inclined suspension tube bus model generation device, solves the huge heavy work of traditional design calculation and modeling, ensures that the arrangement of the inclined suspension tube bus is more intelligent, and improves the design efficiency.
Drawings
FIG. 1 is a flow chart of a three-dimensional design method of a transformer substation inclined suspension type tubular busbar;
FIG. 2 is a schematic view of a computing device for tilting a suspended tubular busbar in the present invention;
FIG. 3 is a schematic view of a device for generating a model of an inclined suspension tubular busbar in the invention;
FIG. 4 is a schematic diagram of a computing device front-end sharing computing device back-end with a model generating device front-end in accordance with the present invention;
FIG. 5 is a diagram of the data composition of the SQL base database according to the present invention;
FIG. 6 is a flow chart of calculation and verification of the inclined suspension tubular busbar calculation device in the invention;
FIG. 7 is a flow chart of the generation of a model of an inclined suspension tubular busbar in the present invention;
FIG. 8 is a flow chart of a modification of the inclined suspension tubular busbar model in the present invention;
Fig. 9 is a schematic view of a model of a tilt suspension tubular busbar in the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
As shown in fig. 2, the inclined hanging tubular busbar computing device is developed in a B/S mode (browser/server mode) comprising a computing device front-end system and a computing device back-end system framework separated from each other; the front-end system of the computing device for realizing the man-machine interaction function adopts node.js as js operation environment, relies on Vue to design a front-end integral frame, adopts TYPESCRIPT as script language, adopts Less as CSS preprocessing language, adopts Element UI as UI component library, and adopts Nginx for service deployment; the back-end system of the computing device for realizing the functions of reading and writing the database and calculating the physical parameters adopts SQL SERVER as the database, adopts ASP.Net Core API as a main frame, realizes the ORM operation of the database through SqlSugar, and realizes the function of calculating the physical parameters by using C# language.
As shown in fig. 3, the inclined suspension tubular busbar model generating device performs secondary development based on an Autodesk Revit platform, comprises a model generating device front end adopting WPF technology and a parameterized model database, and shares the rear end of a computing device with the inclined suspension tubular busbar computing device; the parameterized model database comprises an insulator string model and a tubular busbar model.
As shown in fig. 4, the inclined-suspension-tube busbar calculation device and the inclined-suspension-tube busbar model generation device use a mode in which two front ends share one rear end.
As shown in fig. 1, a three-dimensional design method of a transformer substation inclined suspension type tubular bus comprises the following steps:
S1, writing parameters into the front end of the inclined suspension tubular busbar calculation device.
S2, creating an SQL basic database at the rear end of the inclined suspension tubular busbar computing device.
As shown in fig. 5, in S2, an SQL base database is created, which specifically includes the following steps:
S21, establishing an electrical material database;
in S21, the electrical material database is configured to obtain the material and the physical characteristic parameter of the inclined suspension tubular busbar, where the electrical material at least includes: insulator string, insulator string's equipment gold utensil and tubular busbar. Wherein, the equipment gold utensil of insulator chain includes at least: insulator sheet, Z-shaped link plate, U-shaped link, WS type bowl head link plate, QP type bulb link, yoke plate, parallel link plate, anchor bolt, equalizer ring, shielding ring, suspension clamp.
The insulator string includes at least the following data: the assembly model number and the number of the assembly hardware, and the assembly hardware calls the electric material database.
The insulator sheet includes at least the following data: model, weight, height, windward area, ice coating weight, diameter.
Z-shaped hanging plate, U-shaped hanging ring, WS-shaped bowl head hanging plate, QP-shaped ball head hanging ring, connecting plate, parallel hanging plate, spline, equalizing ring, shielding ring and suspension wire clamp at least comprise the following data: model, height, windward area and ice coating weight.
The tubular busbar includes at least the following data: conductor material, conductor model, conductor size, conductor linear expansion coefficient (1/°c), elastic modulus, conductor dead weight.
S22, establishing a calculation specification database.
In S22, the calculation specification database is used to obtain calculation and arrangement parameters of the inclined suspended tubular busbar, where the calculation specification at least includes: and a short-circuit electrodynamic unit reference value, a tubular busbar wind pressure altitude change coefficient and an altitude correction A value table of the 35-500 kV power distribution device.
The short-circuit electrodynamic unit reference value data table at least comprises the following data: three-phase short circuit and two-phase short circuit impact coefficient value kch.
The wind pressure altitude change coefficient alpha of the tubular bus at least comprises the following data: height and barometric pressure coefficient value.
The altitude correction A value table of the 35-500 kV power distribution device at least comprises the following data: altitude, voltage class, electrical verification of A1, A2 values.
And establishing an electrical material database and a calculation specification database, wherein the data mainly originate from manufacturers and specification specifications.
S3, calculating and checking the displacement and deflection of the tube bus by the inclined suspension tube bus calculating device.
In S3, the inclined suspension tube busbar calculation device calculates and checks the displacement and deflection of the tube busbar, wherein the inclined suspension tube busbar calculation device can realize the following functions: and (5) calculating the displacement and deflection of the tubular busbar. The calculation of the tubular busbar displacement mainly comprises the calculation of a tubular busbar vertical displacement value V and a tubular busbar horizontal displacement value d; the calculation of the deflection of the tubular busbar comprises the calculation of the maximum deflection value D of the tubular busbar.
As shown in fig. 6, the calculation and check of the inclined suspension tubular busbar calculation device specifically comprises the following steps:
s31, inputting visual parameters of the inclined suspension tubular busbar calculation device, namely, inputting environment, electrical design and suspension parameters.
Wherein, the environmental parameters comprise temperature, wind speed, ice coating and altitude; the electrical design parameters include voltage class, short circuit current, architecture span, architecture width, conductor phase spacing, insulator string, and concentrated load; the suspension parameters include horizontal span X, vertical span Y, lateral span Z, cantilever length and suspension height.
S32, the inclined suspension tubular busbar calculation device inputs parameters according to the S31 and calls the SQL basic database in the S2 to calculate intermediate parameters.
The intermediate parameters comprise working condition parameters and load parameters. The working condition parameters comprise temperature, wind speed, ice coating and short circuit current, and are divided into four working conditions of highest temperature, lowest temperature, maximum wind speed, 50% maximum wind speed, short circuit and ice coating according to parameter values; and generating load parameters according to the working condition parameter values, the input parameters, the short-circuit electrodynamic force unit reference value kch and the pipe bus wind pressure height change coefficient alpha, wherein the load parameters comprise the vertical force F applied to the insulator string, the horizontal force H applied to the insulator string and the weight W of the insulator unit length.
And S33, completing the solving and calculating of a preset nonlinear equation based on the output parameter and the intermediate parameter.
The preset nonlinear equation solving equation is based on the annex A formula (A-12), (A-15), (A-16), (A-17), (A-18), (A-19), (A-20) and (A-21) of the substation design of the electric engineering design manual:
Wherein X is a horizontal span, Y is a vertical span, Z is a transverse span, F is a vertical force applied to the V-shaped insulator string, H is a horizontal force applied to the V-shaped insulator string, W is the mass per unit length of a string of insulators, and all the weights are known; l is the actual length of the curve of the string, C1 is the catenary constant of the loose string, C2 is the catenary constant of the tight string, T1 is the hanging point tension of the loose string, T2 is the hanging point tension of the tight string, F1 is the vertical force of the loose string, d is the horizontal displacement of the hanging point, and V is the vertical displacement of the hanging point, all of which are unknowns.
And solving a vertical displacement value V of the pipe bus and a horizontal displacement value d of the pipe bus from 8 independent nonlinear equations of the fault states.
The internal force coefficient of the multi-span continuous beam is added in a normative database, the normative is derived from tables 5-19 of the electric engineering design manual substation design, and the values of the mid-span deflection coefficients k 1 and k 2 are inquired and calculated according to the following formula:
D＝y1+y2
Wherein y 1 is the deflection of uniformly distributed load, y 2 is the deflection of concentrated load, and k 1 is the deflection uniform distribution coefficient; k 2 is a deflection concentration coefficient; q is the weight of the tubular busbar in unit length and is derived from a material database; l m is the length of the tubular busbar; e is the elastic modulus of the tubular bus; j is the tube busbar moment of inertia.
And solving a deflection value D of the bus of the outlet pipe.
S34, based on the output result and the SQL basic database design verification in S2, parameter verification is completed:
s341, determining that the inclined suspension tubular bus is of a space three-dimensional structure, checking the charged safety distance of the horizontal span X, the vertical span Y and the transverse span Z in a three-dimensional space, acquiring A1 and A2 values from an altitude correction A value table of the 35-500 kV power distribution device, and checking whether the vertical displacement and the horizontal displacement of the tubular bus meet the safety clear distance A1 and A2 values or not.
S342, checking whether the calculated deflection is smaller than the limit value requirement or not when the inclined suspension pipe bus span meets the deflection requirement.
And S35, pushing the design input parameters of S31 and the calculation results of S33 to the inclined suspension tubular busbar model generating device under the condition that the verification is qualified based on the verification results.
S4, generating and modifying the model by the inclined suspension tubular busbar model generating device.
S41, generating an inclined suspension tubular busbar model.
As shown in fig. 7, in S41, the oblique suspension tubular busbar model is generated, specifically including the steps of:
S411, determining the spatial positioning of the inclined suspension tubular busbar insulator string based on the horizontal span X, the vertical span Y and the transverse span Z which are designed as input parameters in S31.
S412, calling the information of the insulator string in the SQL basic database in S2, establishing a parameterization family of the insulator string, and leading the parameterization family into a parameterization model library in the inclined suspension tubular busbar model generating device, and generating a V-shaped insulator string model through the parameterization model of the insulator string. The parameterized model completes space arrangement according to the set insulator string parameters and space positioning information.
S413, based on the insulator string models in the design input parameters of horizontal span X, vertical span Y, transverse span Z and S412, performing space positioning of a tubular busbar model, and determining phase spacing, phase-to-ground distance and suspension height, wherein the method specifically comprises the following steps:
(1) First, the arrangement position of the B phase of the suspended tubular bus is selected in the floor plane in the Revit software environment:
selecting a first point as a tube bus arrangement starting point, wherein the position is an intersection point of a B-phase tube bus and a framework width central line; selecting a second point as an end point of the arrangement of the tubular buses, wherein the position of the second point is an intersection point of the B-phase tubular buses and the width center line of the framework;
(2) The procedure first performs the tubular busbar height calculation: h g＝Hj -Y, wherein H g is the height of a tubular bus, H j is the height of a framework, and Y is the vertical span;
(3) Calculating the position of a suspension point of the tubular busbar, determining a unit vector Dir of the arrangement direction of the tubular busbar by a starting point and an ending point, and completing space calculation according to the selected point, the horizontal span X, the framework width and the framework span;
(4) Determining the hanging point position of the insulator string, and completing space calculation according to the selected point, the transverse span Z, the framework width and the framework span;
(5) Determining the space model positioning of the insulator string according to the hanging points of the insulator string and the hanging points of the tubular bus, and calling the parameterized model of the insulator string;
(6) Calling a tubular busbar diameter length parameter drive generation model according to the tubular busbar height H g and the hanging point position;
(7) And (3) performing space copying movement according to parameters such as photographic spacing and the like to finish generation of the A-phase and C-phase inclined suspension tubular busbar model.
S414, driving the tubular busbar model by adopting diameter and length parameters to generate a model, and completing space arrangement according to the spatial positioning information of the tubular busbar.
The formula for calculating the tubular busbar length L m based on the S31 parameter is as follows:
Lm＝Lk-Lleft-Lright-B
Where B is the fabric width, L k is the fabric span, L left is the left side cantilever length, and L right is the right side cantilever length.
S415, through Extensible Storage Framework interfaces, design input parameters and results are written in the tubular busbar model for storage, and after the model is changed, the model is used for comparing and analyzing with the data of the new model.
S42, modifying the inclined suspension tubular busbar model.
As shown in fig. 8, in S42, the oblique suspension tubular busbar model modification specifically includes the following steps:
S421, modifying the tubular busbar model.
When the model entity of the inclined suspension tubular bus is modified, a new data value is transmitted into a calculating device of the inclined suspension tubular bus, and the model modification is executed after calculation and verification, specifically comprising the following conditions:
(1) Calculating the result deflection D after the span modification of the tubular busbar model, checking whether the deflection D is smaller than the limit value requirement, moving the insulator model after the checking is qualified, and reconstructing the tubular busbar model;
(2) Modifying the model of the tubular bus, adjusting design input parameters, performing S3 parameter calculation and verification, calling a parameterized tubular bus model after the verification is qualified, and regenerating the tubular bus model;
(3) And after the arrangement parameters of the tubular bus are modified, calculating the displacement of the tubular bus, checking with the A1 value, and moving the insulator model and the tubular bus model after the checking is qualified.
S422, modifying the insulator model.
Modifying the rim model specifically comprises the following situations:
(1) Modifying the insulator type number, adjusting design input parameters, performing S3 parameter calculation and verification, and calling a parameterized insulator model after the verification is qualified to regenerate the model;
(2) Modifying the positioning size of the insulator string, adjusting design input parameters, performing S3 parameter calculation and verification, and calling a parameterized insulator model after the verification is qualified to regenerate the model.
The resulting oblique suspension tubular busbar model is shown in fig. 9.
In summary, the invention combines the model generation and calculation check tightly by developing the inclined suspension tubular busbar calculation device and the inclined suspension tubular busbar model generation device, ensures that the generated inclined suspension tubular busbar model meets the engineering design requirement, realizes the mapping relation between the inclined suspension tubular busbar calculation data and the model entity, establishes a more effective and accurate geometric model, and realizes the automatic three-dimensional design of the inclined suspension tubular busbar of the transformer substation.
Claims (7)
1. A three-dimensional design method of a transformer substation inclined suspension type tubular bus is characterized by comprising the following steps of: the method comprises the following steps:
S1, writing parameters into the front end of a calculating device of the inclined suspension tubular busbar;
s2, creating an SQL basic database at the rear end of the inclined suspension tubular busbar computing device;
s3, calculating and checking the displacement and deflection of the bus bar of the pipe by using the inclined suspension bus bar calculating device;
S3 specifically comprises the following steps:
S31, inputting environmental parameters, electrical design parameters and suspension parameters at a visual parameter input interface at the front end of the inclined suspension tubular busbar computing device;
In S31, the environmental parameters include temperature, wind speed, ice coating, altitude; the electrical design parameters comprise voltage class, short circuit current, framework span, framework width, conductor phase spacing, insulator strings and concentrated load; the suspension parameters comprise a horizontal span X, a vertical span Y, a transverse span Z, a cantilever length and a suspension height;
s32, the inclined suspension tubular busbar calculation device inputs parameters according to the S31 and calls the SQL basic database in the S2 to calculate intermediate parameters;
S33, completing a preset nonlinear equation based on the input parameters and the intermediate parameters to calculate a vertical displacement value V of the tubular busbar, a horizontal displacement value D of the tubular busbar and a deflection value D of the tubular busbar;
S34, based on the output result and the SQL basic database design verification in the S2, completing parameter verification;
s35, pushing the S31 input parameters and the S33 calculation result to the inclined suspension tubular busbar model generating device under the condition of qualified verification based on the verification result;
s4, generating and modifying a model by using the inclined suspension tubular busbar model generating device;
s4 specifically comprises the following steps:
s41, generating an inclined suspension tubular busbar model;
S411, determining the spatial positioning of the inclined suspension tubular busbar insulator string based on the horizontal span X, the vertical span Y and the transverse span Z of the input parameters in S31;
s412, calling the information of the insulator string in the SQL basic database in S2, establishing a parameterized family of the insulator string, importing the parameterized family into a Revit software environment, and generating a V-shaped insulator string model through a parameterized driving model;
s413, based on the insulator string models in the horizontal span X, the vertical span Y, the transverse span Z and the S412 of design input parameters, performing space positioning on the tubular busbar model, and determining phase spacing, phase-to-ground distance and suspension height;
S414, driving the tubular busbar model by adopting diameter and length parameters to generate a model, and completing space arrangement according to the spatial positioning information of the tubular busbar;
S415, writing design input parameters and results into the tubular busbar model through a Extensible Storage Framework interface for storage;
s42, modifying the inclined suspension tubular busbar model;
S421, modifying the tubular bus model;
S422, modifying the insulator model.
2. The three-dimensional design method for the inclined suspension type tubular bus of the transformer substation, which is characterized by comprising the following steps of: the inclined suspension tubular busbar computing device adopts browser/server mode development and comprises a computing device front-end system which is mutually separated and realizes a man-machine interaction function and a computing device rear-end system which is used for realizing a database read-write and physical parameter computing function;
The front-end system of the computing device adopts node.js as js operation environment, relies on Vue to design a front-end integral frame, adopts TYPESCRIPT as script language, adopts Less as CSS preprocessing language, adopts Element UI as UI component library, and adopts Nginx to carry out service deployment;
The back-end system of the computing device adopts SQL SERVER as a database, adopts ASP.Net Core API as a main framework, realizes ORM operation of the database through SqlSugar, and realizes a physical parameter computing function by using C# language.
3. The three-dimensional design method for the inclined suspension type tubular bus of the transformer substation, which is characterized by comprising the following steps of: the inclined suspension tubular busbar model generating device carries out secondary development based on an Autodesk Revit platform, comprises a model generating device front end adopting a WPF technology and a parameterized model database, and shares the rear end of a computing device with an inclined suspension tubular busbar computing device; the parameterized model database comprises an insulator string model and a tubular busbar model.
4. The three-dimensional design method for the inclined suspension type tubular bus of the transformer substation, which is characterized by comprising the following steps of: s2, creating an SQL basic database comprising an electrical material database and a calculation specification database;
The electrical materials in the electrical material database at least comprise insulator strings, insulator string assembly hardware fittings and tubular buses; the insulator string assembly fitting at least comprises an insulator sheet, a Z-shaped hanging plate, a U-shaped hanging ring, a WS-shaped bowl head hanging plate, a QP-shaped ball head hanging ring, a connecting plate, a parallel hanging plate, a spline bolt, a grading ring, a shielding ring and a suspension wire clamp;
the calculation specification database at least comprises a short-circuit electrodynamic unit reference value, a tubular busbar wind pressure altitude change coefficient and an altitude correction A value table of the 35-500 kV power distribution device.
5. The three-dimensional design method for the inclined suspension type tubular bus of the transformer substation, which is characterized by comprising the following steps of: in the electrical material database, the insulator string at least comprises the following data: assembling model numbers and assembling hardware numbers, and calling an electric material database by the assembling hardware; the assembly hardware fitting of the insulator chain at least comprises the following data: model, height, windward area and ice coating weight; the insulator sheet further includes diameter data; the tubular busbar includes at least the following data: conductor material, conductor model, conductor size, conductor linear expansion coefficient, elastic modulus and conductor dead weight.
6. The three-dimensional design method for the inclined suspension type tubular bus of the transformer substation, which is characterized by comprising the following steps of: in the calculation specification database, the short-circuit electric power unit reference value data table at least comprises the following data: the three-phase short circuit and two-phase short circuit impact coefficient value kch; the wind pressure altitude change coefficient alpha of the tubular bus at least comprises the following data: a height and wind pressure coefficient value; the altitude correction A value table of the 35-500 kV power distribution device at least comprises the following data: altitude, voltage class, electrical verification of A1, A2 values.
7. The three-dimensional design method for the inclined suspension type tubular bus of the transformer substation, which is characterized by comprising the following steps of: in S32, the intermediate parameters include a working condition parameter and a load parameter; the working condition parameters comprise temperature, wind speed, ice coating and short circuit current, and are divided into four working conditions of highest temperature, lowest temperature, maximum wind speed, 50% of maximum wind speed, short circuit and ice coating according to parameter values; and generating load parameters according to the working condition parameter values, the input parameters, the short-circuit electrodynamic force unit reference value kch and the pipe bus wind pressure height change coefficient alpha, wherein the load parameters comprise the vertical force F applied to the insulator string, the horizontal force H applied to the insulator string and the weight W of the insulator unit length.
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| CN110135096A (en) * | 2019-05-22 | 2019-08-16 | 国网新疆电力有限公司电力科学研究院 | A kind of pipe bus, downlead, fitting system stress analysis method |
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| CN110135096A (en) * | 2019-05-22 | 2019-08-16 | 国网新疆电力有限公司电力科学研究院 | A kind of pipe bus, downlead, fitting system stress analysis method |
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