CN-122021365-A - Power transmission and transformation project construction simulation method based on digital twinning

CN122021365ACN 122021365 ACN122021365 ACN 122021365ACN-122021365-A

Abstract

The invention discloses a digital twinning-based power transmission and transformation project construction simulation method, in particular to the field of power transmission and transformation construction, which is used for solving the problem that the simulation and release decision is unstable due to the uncertainty of the boundary of an underground object caused by data divergence in the power transmission and transformation construction; by constructing an evidence layer according to sources, establishing uniform identification and space reference for underground objects, generating a trusted corridor range body with source labels, constructing a construction procedure into an action envelope, driving local alignment updating and conflict resolution of a corridor by combining trial pit test excavation verification events, deducting a constraint trigger chain under multi-corridor assumption and forming a minimum exploration closed loop point position set, setting freezing and releasing conditions for actions of the corridor with uncertain touch in a release stage, and restoring deduction and write back after corridor version is validated, and finally archiving a twin version chain to support reproduction.

Inventors

SHI JIANBO
ZHU ZHENWU
ZHANG YING
WANG CHENG
JIANG BO
YANG HOUGANG

Assignees

国网湖北省电力有限公司电力科学研究院
黄石电力勘测设计有限公司

Dates

Publication Date: 20260512
Application Date: 20260414

Claims (10)

1. The power transmission and transformation project construction simulation method based on digital twinning is characterized by comprising the following steps of: S1, constructing an evidence layer according to a source, establishing a unified identifier by an underground object, binding a space reference standard, and generating a trusted corridor range body containing a source tag; S2, mapping the exposure result of the verification point to a unified identifier, and restricting the scope of the trusted corridor to execute local alignment update to form a new version of the corridor; S3, deducting a constraint trigger chain on the trusted corridor hypothesis set, outputting a feasibility tag, constructing a stability index and a verification value index, inputting a verification priority coefficient generator, outputting a minimum exploratory closed loop point position set and completing action set splitting; and S4, reading the gating result and the verification priority coefficient, freezing the access uncertainty corridor action set, taking verification completion and new corridor version validation as release conditions, releasing the access replacement action set and archiving the twin version chain.
2. The simulation method for power transmission and transformation engineering construction based on digital twinning as claimed in claim 1, wherein the step S1 comprises: And constructing an evidence layer set of a design drawing evidence layer, a completion operation and maintenance evidence layer, a detection interpretation evidence layer and a history exposure evidence layer, selecting a construction measurement control network as a space reference standard, executing rigid body alignment according to the same-name control point pairs, removing abnormal points, completing geometric normalization of the evidence layer, and establishing a mapping table from a unified identifier of an underground object and the evidence layer to the unified identifier.
3. The simulation method for power transmission and transformation engineering construction based on digital twinning according to claim 2, wherein the step S1 further comprises: Extracting central lines at all evidence layers according to the unified mark, constructing a tubular trusted corridor range body, registering source labels, generating action labels and action envelopes according to construction action sequences, calculating touch indication quantity and separation distance of the action envelopes and the trusted corridor range body, forming a reference mapping table, and outputting a trusted corridor range body library and an action envelope library.
4. A digital twinning-based power transmission and transformation project construction simulation method according to claim 3, wherein the step S2 comprises: Receiving verification events, registering verification points, exposure point sets, measurement mode identification and measurement resolution scale, wherein the verification points are expressed by adopting space reference standard, performing point-contained retrieval and nearest distance retrieval according to a trusted corridor range body library, and completing unified identification locking by combining an evidence layer to a mapping table of unified identification.
5. The simulation method for power transmission and transformation engineering construction based on digital twinning according to claim 4, wherein the step S2 further comprises: And executing a local alignment updating rule according to the unified identification and the exposed point set to update the layering central line and the radius function, generating a new version of the corridor, completing conflict typing according to the consistency of the residual direction and the trend topology difference, generating an affected spatial domain, screening the affected action reference domain according to the reference mapping table, and writing a version chain.
6. The digital twinning-based power transmission and transformation project construction simulation method according to claim 5, wherein the step S3 comprises: Reading a layered corridor range body set based on a corridor version chain, generating a trusted corridor hypothesis set according to source labels, reading an action envelope library according to an action sequence, executing intersection judgment and nearest distance judgment of the action envelope and each hypothesis corridor to form a constraint trigger chain, and outputting feasibility labels and first trigger records under each hypothesis.
7. The simulation method for power transmission and transformation engineering construction based on digital twinning according to claim 6, wherein the step S3 further comprises: The statistical standard assumption and the difference ratio of the feasible labels of the rest assumptions obtain a feasible turnover ratio, a sensitive segment set is generated on a construction lofting line according to the first trigger record, a verification candidate point location set is generated around the sensitive segment according to the minimum clear distance anchoring, the local alignment updating rule is called to estimate the expected range volume shrinkage, and the scale gain density is obtained by combining the verification work amount to represent the volume.
8. The digital twinning-based power transmission and transformation project construction simulation method according to claim 7, wherein the step S3 further comprises: And performing gating screening on the feasible turnover ratio according to the stability gating threshold, mapping the feasible turnover ratio and the gallery gain density into verification priority coefficients by using a monotonically constrained verification priority coefficient generator, outputting and sequencing, forming a minimum exploratory closed loop point position set according to a coverage rule, and splitting a touch uncertainty corridor action set and a non-touch substitution action set according to a reference mapping table.
9. The digital twinning-based power transmission and transformation project construction simulation method according to claim 8, wherein the step S4 comprises: Reading a stability gating result and a minimum detection closed loop point position set to generate a release unit record, wherein the release unit record is used for binding an action identifier, a touch source unified identifier set and a related corridor version chain effective version index, registering freezing judgment and release judgment aiming at a touch uncertain corridor action set, and releasing judgment corresponding to a verification event completion state and a corridor new version effective state.
10. The simulation method for power transmission and transformation engineering construction based on digital twinning according to claim 9, wherein the step S4 further comprises: The method comprises the steps of executing release on a non-touch alternative action set, archiving an execution window and an execution track, executing release and archiving the execution window and the execution track when the judgment is released and satisfied on the touch alternative corridor action set, triggering a corridor new version to take effect after a verification event is completed, screening the affected action set and executing deduction and write-back, and simultaneously referencing and releasing a freezing reason into a version chain.

Description

Power transmission and transformation project construction simulation method based on digital twinning Technical Field The invention relates to the field of power transmission and transformation construction, in particular to a digital twinning-based power transmission and transformation engineering construction simulation method. Background In the construction stage of the foundation pit excavation of the transformer station, the cable pit and the grounding grid in the station, the power transmission and transformation project is often adjacent to the existing underground pipeline and the history structures and is constrained by the arrangement of a construction period window and power cut and transmission, and the position and the influence range of an underground object need to be checked before construction, and mechanical walking, excavation propulsion and supporting arrangement are organized accordingly. The existing method generally integrates design drawings, completion data, geophysical exploration interpretation results and a small amount of pilot hole exposure information, performs construction deduction and risk check in BIM/GIS or three-dimensional scenes, and because the data precision, coordinate reference and interpretation caliber of different sources are inconsistent, the on-site temporary setting and excavation boundaries can be adjusted along with the process, underground object expression is often presented in a single version or static line position, and an uncertain interval and a change link are difficult to cover. In the above scenario, the inconsistent multi-source evidence of the underground object can cause the feasibility conclusion to turn over under different assumptions in the same action sequence, so as to form the phenomenon of unstable deduction conclusion, the mechanism is that the underground position deviation and the uncertain interval are not unified and can be expressed in a traceable way and form continuous evolution along with the verification event, pilot hole or the exploratory point is selected in a multi-dependent experience way, the marginal contribution of the underground position deviation and the uncertain interval convergence is difficult to quantify, when the unified quote mark and the version tracing are lacked, the conflict source and the affected range are difficult to be clear, and the excavation and support decision can be established on the expired or contradictory underground facts, so that the risks of false excavation, shutdown waiting, reworking reinforcement and damage to peripheral pipelines are caused. In order to solve the above problems, a technical solution is now provided. Disclosure of Invention In order to overcome the defects of the prior art, the embodiment of the invention provides a digital twinning-based power transmission and transformation engineering construction simulation method, which comprises the steps of constructing an evidence layer according to sources, establishing a unified identifier and a spatial reference for underground objects, generating a trusted corridor range body with source tags, constructing a construction procedure into an action envelope, combining test pit test to dig and verify event-driven corridor local alignment update and conflict resolution, deducing a constraint trigger chain under multiple corridor assumptions and forming a minimum dig closed-loop point set, setting freezing and releasing conditions for the action of the touch uncertain corridor in a release stage, carrying out re-deduction and write-back after the corridor version is effective, and finally archiving a twinning version chain to support reproduction so as to solve the problems in the background art. In order to achieve the above purpose, the present invention provides the following technical solutions: S1, constructing an evidence layer according to a source, establishing a unified identifier by an underground object, binding a space reference standard, and generating a trusted corridor range body containing a source tag; S2, mapping the exposure result of the verification point to a unified identifier, and restricting the scope of the trusted corridor to execute local alignment update to form a new version of the corridor; S3, deducting a constraint trigger chain on the trusted corridor hypothesis set, outputting a feasibility tag, constructing a stability index and a verification value index, inputting a verification priority coefficient generator, outputting a minimum exploratory closed loop point position set and completing action set splitting; and S4, reading the gating result and the verification priority coefficient, freezing the access uncertainty corridor action set, taking verification completion and new corridor version validation as release conditions, releasing the access replacement action set and archiving the twin version chain. Further, a design drawing evidence layer, a completion operation and maintenance evid