Research Information System
ELECTRIC POWER COMPONENTS AND SYSTEMS, vol.52, no.7, pp.1155-1173, 2024 (SCI-Expanded)
This article introduces an enhanced Radial, Equivalent, Independent (REI) model for power system reduction, aiming to enhance computational efficiency while preserving accuracy. Unlike the conventional REI method, which divides the system into two regions, the proposed model partitions the grid into more suitable regions, maintaining regional control centers for a more effective reduction process. The model significantly decreases the number of busbars, transmission lines, generators, and load models while retaining the overall geographical structure of the grid. An 8-step application process is outlined for implementing this approach. Validation on a 48-bus power system and the IEEE 39-bus system demonstrates its efficiency. Application on the Turkish transmission system results in a 57% reduction in busbars (from 162 to 70) and a 49% reduction in transmission lines, simplifying the model while achieving an impressive average active load flow error of only 3.51%. The study concludes that the extended REI model offers improved computational efficiency without compromising accuracy, making it promising for applications like network planning, market simulations, and capacity management.