부산대학교 도서관

Electricity is closely related to the development of social economy. In the process of distribution system planning and construction, it is significant to evaluate the power supply capability accurately of the system. The total supply capability (TSC) is taken as the evaluation index, and an analytical calculation model of distribution system power supply capability considering load transfer is proposed in this paper. Inspired by the linear programming model of TSC, the analytic expression of average load rate of N-l fault-main transformer is determined by the connection relationship of main transformer and load transfer mode, and the analytic calculation model of TSC is established. Moreover, the analytical calculation model of TSC is improved by introducing the network loss and voltage factors, and a new analytical expression of average load rate of main transformer is derived which considers the network loss. Finally, a specific case is given to verify the accuracy and effectiveness of the analytical calculation model, which can provide an important reference for the planning and construction of distribution system in the future.