CN115330959A - Automatic accurate calibration algorithm for live distance of power transformation project - Google Patents
Automatic accurate calibration algorithm for live distance of power transformation project Download PDFInfo
- Publication number
- CN115330959A CN115330959A CN202211272616.5A CN202211272616A CN115330959A CN 115330959 A CN115330959 A CN 115330959A CN 202211272616 A CN202211272616 A CN 202211272616A CN 115330959 A CN115330959 A CN 115330959A
- Authority
- CN
- China
- Prior art keywords
- distance
- charged
- minimum
- accurate calibration
- charged body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004422 calculation algorithm Methods 0.000 title claims abstract description 20
- 230000009466 transformation Effects 0.000 title claims abstract description 15
- 238000012795 verification Methods 0.000 claims description 24
- 238000005259 measurement Methods 0.000 claims description 21
- 238000004364 calculation method Methods 0.000 claims description 10
- 239000012212 insulator Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000000819 phase cycle Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000004590 computer program Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Graphics (AREA)
- Geometry (AREA)
- Software Systems (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electron Beam Exposure (AREA)
Abstract
The invention discloses an automatic accurate calibration algorithm for electrified distance of power transformation engineering. The automatic accurate calibration of the charged distance is realized by calculating the minimum distance between the charged body and between the charged body and the grounding body and comparing the minimum distance with the corresponding minimum safe clear distance. According to the invention, the charged distance of the charged three-dimensional model is checked through a software program, so that the charged distance problem in design can be effectively solved, the design reliability of a drawing is greatly improved, the design time of a construction drawing is saved, and the working efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of digital design of power transmission and transformation projects, and particularly relates to an automatic and accurate calibration algorithm for electrified distances of a power transformation project.
Background
At present, three-dimensional digital design is gradually applied to power transformation engineering, and the design efficiency is greatly improved. A designer establishes a three-dimensional model in three-dimensional digital design software such as Revit, associates equipment attributes, performs three-dimensional arrangement, and finally obtains a required plane section diagram, a configuration wiring diagram and the like by sectioning the three-dimensional model.
However, when three-dimensional arrangement is performed, a designer needs to perform charged distance calibration on all models, the workload is large, the time is long, and the risk of calculation errors and omission is caused, so that potential hazards are brought to safety production.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provide an automatic and accurate verification algorithm for the electrified distance of the power transformation project. When the device is applied to computer software, the charged distances of all equipment can be quickly and accurately checked.
The technical scheme adopted by the invention is as follows: an automatic accurate calibration algorithm for electrified distances of power transformation projects comprises the following steps:
in three-dimensional design software, inputting a station altitude, a measurement step length and an alarm range, wherein the station altitude is used for correcting the minimum safe clear distance, the measurement step length is used for determining the calculation precision of computer software, and the alarm range is used for warning that the air clear distance of the part is close to the minimum safe clear distance;
selecting a three-dimensional model needing to be subjected to charged distance verification, wherein the three-dimensional model is provided with corresponding characteristic attributes, identifying a charged part, a grounded part and an insulated part of the three-dimensional model, calculating the minimum distance, namely the measurement distance, between a charged body and a grounded body and between the charged body and the charged body, and comparing the minimum safe clear distance with the minimum safe clear distance required by the specification;
calculating output information including a verification object, a measurement interval and a verification result;
according to the checking object and the measuring distance, the following three checking results are obtained:
if the measurement distance is larger than or equal to the minimum safe clear distance plus the alarm range, the measurement distance passes;
if the safe clear distance plus the alarm range is larger than the measurement distance which is not less than the minimum safe clear distance, an alarm is given;
if the measurement distance is less than the minimum safe clear distance, the measurement distance does not pass.
And forming a check calculation book, wherein the check calculation book comprises station altitude, measurement step length, alarm range and safe clear distance setting, the selected three-dimensional model participating in the check and a check result.
The corresponding characteristic attributes of the three-dimensional model configuration of the charged body or the grounding body comprise the outer surface of the charged body or the grounding body, the size of the charged body or the grounding body, the shape of the charged body or the grounding body, the voltage grade of the charged body and the phase sequence of the charged body.
The method specifically comprises the following steps:
(1) The outer surfaces of the three-dimensional models of the object 1 and the object 2 to be verified are respectively split into a plurality of triangular surfaces according to the measuring step lengthS ai 、S bj Whereina、bRespectively represent object 1 and object2，i、j=1,2,3.. N, wherein n is an integer;
(2) Calculating the second of the object 1iA triangle surface to the object 2jDistance between triangular facesd ij }；
(3) Selecting the smallest numberd ij I.e. at this timed ij Can be regarded as the minimum distance min between object 1 and object 2d ij }；
(4) Comparing the minimum distance with the minimum safety distance required by the specification to check whether the requirements are met;
(5) And (5) converting the verification object, and repeating the steps (1) to (4) until the charged body, all other charged bodies and the grounding body nearby the charged body complete verification, and finishing the distance verification of the charged body.
The identification of the charged part, the grounded part and the insulated part of the three-dimensional model comprises the following steps: the electrified attribute of the inside component of equipment is generally different, and equipment comprises a plurality of electrified bodies, a plurality of grounding bodies and a plurality of insulators, and when equipment modeling is finished and is carried out electrified distance check, the inside single electrified body or the grounding body of equipment needs to be identified, and when equipment modeling is carried out, different electrified attribute tags are given to the grounding body or the electrified body or the insulators, and the model of the single grounding body or the electrified body or the insulators is identified through tag index, whether the model is electrified or not is identified, and then subsequent electrified distance check is carried out.
The specific rules are as follows:
the various parts are identified in the form of attribute tags:
a charged part: the label "1" represents charge;
a grounding part: the label "0" represents ground;
an insulating part: the label "NA" indicates that the moiety is not involved in the verification;
for different charged bodies in the equipment, attribute tags are adopted to identify equipment components, and the annotation rule is according to the acronym + three-digit serial number, and the distinguishing method is as follows:
grading the ring: JYH001, JYH002, \8230, and \8230 (numbered in sequence according to actual number);
flange: FL001, FL002, \8230; (numbered in sequence according to actual number);
terminal board: DZB001, DZB002, \8230; (numbered in sequence according to actual number);
a housing: WK001, WK002, \8230; (numbered sequentially according to actual number).
The three-dimensional model outer surface can be of any shape.
The three-dimensional design software is Revit.
The electrified body and the grounding body are three-dimensional models and have corresponding characteristic attributes.
According to the invention, the automatic and accurate verification of the charged distance is realized by calculating the minimum distance between the charged bodies and the charged body and between the charged body and the grounding body and comparing the minimum distance with the corresponding minimum safe clear distance.
According to the invention, the shortest distance between the charged part and the grounding part and between the charged parts is automatically calculated by identifying the charged part or the grounding part or the insulating part in the equipment, and compared with the minimum safe clear distance in DL _ T5352 high-voltage distribution device design specification, so that the charged distance of a charged body can be automatically, accurately and quickly checked in three-dimensional digital design software, and the design efficiency of technicians is effectively improved.
According to the invention, the charged distance of the charged three-dimensional model is checked through a software program, so that the charged distance problem in design can be effectively solved, the design reliability of drawings is greatly improved, the design time of construction drawings is saved, and the working efficiency is improved.
Compared with the prior art, the automatic and accurate charged distance checking algorithm provided by the invention can intuitively obtain the minimum distance between the charged body and other nearby charged bodies and the grounding body, and meanwhile, the charged distance checking is completely completed by a computer program, so that the calculation is rapid and accurate, compared with manual checking, the design time of technical personnel is greatly saved, and the design quality is effectively ensured.
Drawings
FIG. 1 is a schematic diagram of an electrical verification process;
FIG. 2 is a schematic flow chart of an automatic precise verification algorithm of the present invention;
FIG. 3 is a schematic diagram of a computational check object;
FIG. 4 is a schematic diagram of the computer program verification principle of the algorithm;
fig. 5 is a schematic diagram of a calculation output verification result.
Detailed Description
The invention will be further described in detail with reference to the following drawings and specific examples, which are not intended to limit the invention, but are for clear understanding.
As shown in fig. 1-2, the automatic and accurate calibration algorithm for the live distance of the power transformation project of the invention comprises the following steps:
step 1: and (4) completing three-dimensional model arrangement in three-dimensional design software such as Revit and the like, and configuring corresponding electrical and civil engineering characteristic attributes.
And 2, step: the elevation (unit: meter) of the station site, the measurement step length (unit: millimeter) and the alarm range (unit: millimeter) are input. Wherein the site altitude is used for minimum safe clearance correction, the measurement step length is used for determining the calculation accuracy of computer software, and the alarm range is used for warning that the part of the air clearance is close to the minimum safe clearance.
And step 3: and selecting a three-dimensional model needing to be subjected to charged distance calibration, and performing calibration by adopting an automatic accurate calibration algorithm. The automatic accurate calibration algorithm is characterized in that the minimum distance between the charged bodies and the minimum distance between the charged bodies and the grounding body are calculated and compared with the minimum safe clear distance required by the specification.
The specific steps of the automatic precise verification algorithm for verification are as follows:
(1) As shown in fig. 3 and 4, the outer surfaces of the three-dimensional models of the object 1 and the object 2 to be verified are respectively split into a plurality of triangular surfaces according to the measurement step lengthS ai 、S bj Whereina、bRespectively representing an object 1, an object 2,i、j=1,2,3.. N, wherein n is an integer;
(2) Calculating the distance between all triangular faces of the object 1 to all triangular faces of the object 2d ij } (first of the object 1iTriangular surfaceTo the object 2jThe distance between the triangular faces) and calculating all the distances and solving the shortest distance;
(3) Selecting the one with the smallest numberd ij At that timed ij Can be regarded as the minimum distance between the object 1 and the object 2, in which case the minimum distance is mind ij And (4) and note: the outer surface of the actual verification object does not necessarily have a curved surface as shown in fig. 4, and the outer surface of the verification object can have any shape, but the principle is the same;
(4) The minimum spacing is compared to the minimum safe spacing required by the specification to verify that the requirements are met. As shown in fig. 2, when:
①min{d ij when the value is larger than or equal to the minimum safe clear distance plus the alarm range, the charged distance meets the requirement;
(2) safe clear distance + alarm range > mind ij When the minimum safe clear distance is larger than or equal to the preset value, the charged distance meets the standard requirement but is within the alarm range;
③min{d ij and when the value is less than the minimum safe clear distance, the charged distance does not meet the requirement.
(5) And (4) converting the checking object, and repeating the steps (1) to (4) until all the charged bodies, other charged bodies and the grounding body nearby are checked, and finishing the distance checking of the charged bodies.
And 4, step 4: the verification result as shown in fig. 5 is output.
The reference of the charged distance verification is the design specification of a DL _ T5352 high-voltage power distribution device in the national power industry standard, and the specification provides the minimum safe clear distance which a corresponding charged body should meet aiming at factors such as different voltage levels, altitudes, neutral point grounding modes and the like. Specific parameters that need to be checked include:
TABLE 1 electric safety clear distance check item for 3kV-500kV outdoor distribution equipment
TABLE 2 Electrical safety clear distance checking items of 750kV and 1000kV outdoor power distribution device
Note: (1) the electrical safety clear distance value of the parameters needs to consult DL _ T5352 design specification of high-voltage distribution equipment; (2) when carrying out the charged distance check, the pair is neededA 1 、
、
、A 2 、B 1 、B 2 、C、DAnd when all the electrical safety clear distances are verified, the electrified distance meets the design requirement when all the electrical safety clear distances are met.
Those not described in detail in this specification are within the skill of the art.
Claims (7)
1. The utility model provides an automatic accurate calibration algorithm of transformer engineering live distance which characterized in that: the method comprises the following steps:
in three-dimensional design software, inputting a station altitude, a measurement step length and an alarm range, wherein the station altitude is used for correcting the minimum safe clear distance, the measurement step length is used for determining the calculation precision of computer software, and the alarm range is used for warning that the air clear distance of the part is close to the minimum safe clear distance;
selecting a three-dimensional model needing to be subjected to charged distance verification, wherein the three-dimensional model is configured with corresponding characteristic attributes, identifying a charged part, a grounded part and an insulated part of the three-dimensional model, calculating a minimum distance, namely a measurement distance, between a charged body and a grounded body and between the charged body and the charged body, and comparing the minimum safe clear distance required by specifications;
calculating output information including a verification object, a measurement interval and a verification result;
according to the checking object and the measuring distance, the following three checking results are obtained:
if the measurement distance is larger than or equal to the minimum safe clear distance plus the alarm range, the measurement distance passes;
if the safe clear distance plus the alarm range is larger than the measurement distance which is not less than the minimum safe clear distance, an alarm is given;
if the measured distance is less than the minimum safe clear distance, the measured distance does not pass.
2. The automatic accurate calibration algorithm for the electrified distance of the power transformation project according to claim 1, characterized in that: and forming a check calculation book, wherein the check calculation book comprises station altitude, measurement step length, alarm range and safe clear distance setting, the selected three-dimensional model participating in the check and a check result.
3. The automatic accurate calibration algorithm for the electrified distance of the power transformation project as claimed in claim 1, characterized in that: the corresponding characteristic attributes configured by the three-dimensional model of the charged body or the grounding body comprise the outer surface of the charged body or the grounding body, the size of the charged body or the grounding body, the shape of the charged body or the grounding body, the voltage grade of the charged body and the phase sequence of the charged body.
4. The automatic accurate calibration algorithm for the electrified distance of the power transformation project as claimed in claim 1, characterized in that: the method specifically comprises the following steps:
(1) The outer surfaces of the three-dimensional models of the object 1 and the object 2 to be verified are respectively split into a plurality of triangular surfaces according to the measuring step lengthS ai 、S bj Whereina、bRespectively representing an object 1, an object 2,i、j=1,2,3.. N, wherein n is an integer;
(2) Calculating the second of the object 1iA triangle surface to the object 2jDistance between triangular facesd ij }；
(3) Selecting the one with the smallest numberd ij At that timed ij Can be regarded as the minimum distance min between object 1 and object 2d ij }；
(4) Comparing the minimum spacing with a minimum safety spacing required by the specification to verify whether the requirements are met;
(5) And (5) converting the verification object, and repeating the steps (1) to (4) until the charged body, all other charged bodies and the grounding body nearby the charged body complete verification, and finishing the distance verification of the charged body.
5. The automatic accurate calibration algorithm for the electrified distance of the power transformation project according to claim 1, characterized in that: identifying the live portion, the ground portion, and the isolation portion of the three-dimensional model includes: the equipment comprises a plurality of charged bodies, a plurality of grounding bodies and a plurality of insulators, when the equipment is modeled and the charged distance check is completed, a single charged body or grounding body in the equipment needs to be identified, when the equipment is modeled, different charged attribute tags are given to the grounding body or the charged body or the insulators, a single grounding body or a model of the charged body or the insulators is identified through tag index, whether the grounding body or the charged body or the insulators are charged is identified, and then the subsequent charged distance check is performed.
6. The automatic accurate calibration algorithm for the electrified distance of the power transformation project according to claim 1, characterized in that: the three-dimensional model outer surface can be of any shape.
7. The automatic accurate calibration algorithm for the electrified distance of the power transformation project as claimed in claim 1, characterized in that: the three-dimensional design software is Revit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211272616.5A CN115330959A (en) | 2022-10-18 | 2022-10-18 | Automatic accurate calibration algorithm for live distance of power transformation project |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211272616.5A CN115330959A (en) | 2022-10-18 | 2022-10-18 | Automatic accurate calibration algorithm for live distance of power transformation project |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115330959A true CN115330959A (en) | 2022-11-11 |
Family
ID=83915339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211272616.5A Pending CN115330959A (en) | 2022-10-18 | 2022-10-18 | Automatic accurate calibration algorithm for live distance of power transformation project |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115330959A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003256498A (en) * | 2002-03-01 | 2003-09-12 | Mitsubishi Electric Corp | Cad system for insulation design |
| CN110222423A (en) * | 2019-06-06 | 2019-09-10 | 内蒙古电力勘测设计院有限责任公司 | Based on model attributes multiple types are charged safely with the detection method of clear distance |
| CN111812390A (en) * | 2020-06-02 | 2020-10-23 | 深圳供电局有限公司 | Near-electricity alarm method, device and system and computer equipment |
| CN112800506A (en) * | 2019-11-13 | 2021-05-14 | 北京博超时代软件有限公司 | Transformer substation safety clear distance checking method and device, equipment and storage medium |
| CN112801435A (en) * | 2019-11-13 | 2021-05-14 | 北京博超时代软件有限公司 | Substation fire prevention verification method and device, equipment and storage medium |
| CN113486495A (en) * | 2021-06-08 | 2021-10-08 | 中国能源建设集团江苏省电力设计院有限公司 | Real-time automatic checking method for electrical safety clear distance based on three-dimensional field |
| CN114255559A (en) * | 2020-09-24 | 2022-03-29 | 南京南瑞继保电气有限公司 | Method for constructing three-dimensional electronic fence of transformer substation based on equipment running state |
-
2022
- 2022-10-18 CN CN202211272616.5A patent/CN115330959A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003256498A (en) * | 2002-03-01 | 2003-09-12 | Mitsubishi Electric Corp | Cad system for insulation design |
| CN110222423A (en) * | 2019-06-06 | 2019-09-10 | 内蒙古电力勘测设计院有限责任公司 | Based on model attributes multiple types are charged safely with the detection method of clear distance |
| CN112800506A (en) * | 2019-11-13 | 2021-05-14 | 北京博超时代软件有限公司 | Transformer substation safety clear distance checking method and device, equipment and storage medium |
| CN112801435A (en) * | 2019-11-13 | 2021-05-14 | 北京博超时代软件有限公司 | Substation fire prevention verification method and device, equipment and storage medium |
| CN111812390A (en) * | 2020-06-02 | 2020-10-23 | 深圳供电局有限公司 | Near-electricity alarm method, device and system and computer equipment |
| CN114255559A (en) * | 2020-09-24 | 2022-03-29 | 南京南瑞继保电气有限公司 | Method for constructing three-dimensional electronic fence of transformer substation based on equipment running state |
| CN113486495A (en) * | 2021-06-08 | 2021-10-08 | 中国能源建设集团江苏省电力设计院有限公司 | Real-time automatic checking method for electrical safety clear distance based on three-dimensional field |
Non-Patent Citations (3)
| Title |
|---|
| 李帅波: "架空线路进站档电气距离三维校验应用研究", 《电工技术》 * |
| 胡金等: "三维数字化技术在渝鄂工程中的应用", 《电力勘测设计》 * |
| 龚峰: "基于IEC标准的高压配电装置最小安全净距计算研究", 《电气应用》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104111435B (en) | A kind of test fixture error elimination method | |
| CN108037456A (en) | A kind of lithium ion battery heat analysis method | |
| CN108073722B (en) | Automatic verification device and method for newly-built substation main and sub-station graphs and models | |
| CN106096079B (en) | Design method and system for improving cable laying length precision | |
| CN108988197B (en) | Rapid reconstruction method for live working site of live working robot system | |
| CN107247208A (en) | A kind of transformer shorted-turn fault location positioning method | |
| CN112149223B (en) | Electromagnetic environment simulation method for vehicle | |
| CN103677815A (en) | Method for generating program to automatically test electrical performance of spacecraft low-frequency cable | |
| CN111581804A (en) | Method for generating minimum part repair scheme based on actual measurement model | |
| CN108858187B (en) | Rapid reconstruction method for live-wire lapping drainage wire operation site | |
| Fedorov et al. | Wiring of complicated electrical circuits of interblock assembling in automated design of aircraft | |
| CN116958472A (en) | Transmission line crossing detection analysis method | |
| CN113849885A (en) | BIM-based GIM digital model modeling method for power transmission and transformation project | |
| CN111611665B (en) | Intelligent substation design method based on three-dimensional modular design | |
| CN108537792B (en) | Power defect image identification method based on convolutional neural network | |
| CN109873286A (en) | A kind of radio-frequency cable component phase equalization assembly method | |
| CN115330959A (en) | Automatic accurate calibration algorithm for live distance of power transformation project | |
| CN111625932B (en) | Semi-physical antenna simulation method and system | |
| CN112000831A (en) | Abnormal data identification optimization method based on transformer substation graph transformation | |
| CN104317987A (en) | Error analysis method for simulating calculation of short-circuit current | |
| CN116228158A (en) | Big data platform plan management method and related device based on constructional engineering | |
| CN115546148A (en) | Method, device, equipment and medium for measuring length of overhead conductor in digital twin station area | |
| CN115186526A (en) | Ultra-high voltage transmission line discharge early warning method based on unmanned aerial vehicle monitoring | |
| CN114509777A (en) | Electric transmission project entity acceptance method based on Cesium platform | |
| Mora et al. | Modeling of the propagation along low voltage power networks for IEMI studies |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221111 |
|
| RJ01 | Rejection of invention patent application after publication |