Research on panoramic visual modeling and automatic layout algorithm of secondary circuit for substation

Substation secondary system is the key to power system security, and its digital design depends on SCD and SDD files, but the existing methods have some problems, such as insufficient visualization, difficult file fusion and lack of security measures. Therefore, this paper puts forward a panoramic visual modeling method based on mixed layout strategy, and optimizes the graphic display effect of secondary loop by constructing multi-dimensional visual model and automatic layout algorithm. At the same time, multi-source data fusion technology is adopted to realize the deep integration of SCD and SDD files, and a security enhanced visual interactive system is developed to provide operation guidance and real-time monitoring. The experimental results show that this method significantly improves the layout quality, visualization efficiency and operation and maintenance safety of the secondary loop. The average number of crossing edges is reduced by 71.05%, the total wiring length is optimized by 25.90%, the layout time is reduced by 93.33%, the fault location time is shortened by 83.3%, and it has higher rendering performance and stability in large-scale visualization scenes. The research results provide strong support for intelligent operation and maintenance of substation secondary system, which has important theoretical significance and practical application value.