State Grid Jiaxing: Digital intelligence key to digitalizing distribution network planning

On Sept 12, staff member of State Grid Jiaxing Power Supply Company Hu Sheng carried out a new round of rolling revisions for the planning of Jiashan county's distribution network through the automatic planning system of the distribution network's digital twin. In response to the above pain points, State Grid Jiaxing Power Supply Company developed an automatic planning system for the distribution network's digital twin back in 2022 relying on the "online power grid" platform to realize the full-process automatic generation of distribution network planning projects such as diagnosing power grids and locating substations. The planning time is shortened from three or four months to one or two weeks, and the power grid planning investment is reduced by about 10 percent," Hu said that this system innovates the digital management mode of distribution network planning and spatially couples the power grid data model with the local urban construction "multiple plans in one" data model to achieve comprehensive overall planning and organic connection between power grid planning and national land space planning. During the research and development period, the project team innovatively developed more than 30 algorithms such as "topology + power flow" traversal analysis and for the first time introduced intelligent location and wiring technology in the application of intelligent distribution network planning.