A reduction method of distribution network for smart distribution operation system

In this paper, we propose a reduction method of distribution network for Korean Smart Distribution Management System (KSDMS). For this, we propose the network reduction rules and the application common database structure. The basic concept of reduction rules are the electrical unification of successive line section which has not lateral branches and the removal of simple lateral branches which has not devices and other laterals. The branch impedances and section loads of reduced network are recalculated. The application software is performed using the database links and parameters between original network and reduced network tables. The network reduction rate, on the average, is about 40% in case studies and the performance of application software (for calculation time) is significantly enhanced than the conventional network.