| With the continuous development of the national power industry,the construction of transmission lines at various voltage levels has become an important pillar in the process of power grid construction.Among them,the construction of UHV and UHV transmission lines is the lifeblood of the country’s economic construction and development.It can be seen that the role of overhead transmission lines in the construction of power grids is very important,and the most important thing in transmission line engineering is the selection of transmission lines and the selection of poles and towers.However,there are still relatively few research documents on transmission line path planning and tower ranking.The line planning software and ranking software on the market are not complete in visualization and design results,and their functions are relatively single.They cannot be used in line selection and ranking operations.Synchronous interaction and separation of functions lead to low engineering design efficiency,and the accuracy of pole tower calculation is not accurate enough,which will affect the feasibility of the line selection and ranking results.There is an urgent need to develop a set of system software that can solve the above problems.Based on the discussion and research of the above-mentioned issues,this paper integrates path planning and tower ranking,uses the ranking results to verify the route selection and reflects the route selection and tower model through the three-dimensional view to assist designers in the electrical design and structural design of the transmission line.In this paper,first,according to the current design and development of power transmission line software,according to the actual design requirements of the project,the functional and non-functional requirements analysis of the tower ranking optimization system is carried out.Then,based on the analysis results,carry out architecture design and business logic design for the platform system,and outline the design of the system function modules.Develop specific software functions under a reasonable structure,for route optimization module,pole tower optimization ranking module,electrical design module(including electrical full-function check,electrical achievement output),structural design module(including tower basic design,structural results)Output)and the database module are designed in detail.In terms of the route selection method,as the entire transmission line design process must rely on the support of the poles to transmit power,and the planned line path can only be verified by the poles and towers to determine the feasibility of the route selection plan.Therefore,the feasibility of the route selection plan needs to be determined based on the cost.The superficial path planning method is combined with the arrangement of the poles and towers to carry out the power line selection work on the transmission line.In this paper,A*algorithm is used to optimize the route selection in the road planning;dynamic planning is used to optimize the ranking of the poles and towers.The system verifies the correctness of the route selection through the pole and tower ranking results,and proposes a route selection method that combines the path planning process with the pole and tower ranking process for iterative processing.Based on demand analysis,outline design,and detailed design,this paper develops and designs the software system based on the C++ development language,the application interface development framework QT,the Teigha library for secondary development CAD,and the Open Scene Graph(Osg)framework for 3D modeling view rendering..Tests show that the system has realized a series of functions such as electrical design,structural design,routing and ranking,etc.It has improved the calculation accuracy of pole and tower verification and the efficiency and reliability of routing and ranking,and the efficiency of routing has been averaged.An increase of 30% has achieved the goal of improving the work efficiency of designers. |