Lepistö, Juhani, Helen Electricity Network Ltd., Finland
This paper focuses on optimizing the medium voltage distribution network in an urban area. An optimized target network is created for the planners of electricity distribution networks. The planner decides if it is beneficial to follow the plan or stay in the present network model. It has been shown in the transmission level, that this methodology has benefits. The paper presents a short formula for the planners to make the decision. For the optimization task, a new application uses a raster map of the city as one input in the process. The map assists the application to find permissible and cost optimized cable routes when supply cost, outage, and maintenance related information has been given on the raster map. The resulting target network has suitable cables and disconnectors drawn automatically on the cost optimal places. In the results, we see three optimized networks with numerical results.