TSC-based planning: A new method to exploit asset efficiency of distribution systems

Abstract

This paper proposed a new planning method for distribution networks based on total supply capability (TSC). Firstly, 10 planning measures were summarized in 3 types with their priorities. Secondly, an overall planning process was proposed, composed of the following steps: 1) The TSC and maximum supply capability (MSC) were calculated. 2) The TSC and MSC were used to verify whether they could match the need of the total load forecasted. 3) Distribution verification between load and TSC were also performed, i.e. transformer by transformer. 4) N − 1 simulation was finally used to verify the selected planning scheme. Moreover, for the critical problem of load re-allocation in the planning process, an optimization model was set up. Finally, a planning case was discussed to show the difference from traditional approach. The result shows that TSC-based planning could result in full utilization and higher efficiency of existing assets.