A Transformer Tap Changer and Vector Group Study for Load Flow Analysis in Brunei Network

Load flow analysis plays an important role to forecast power system operation planning, economic scheduling, and reconfiguration of power network. In this paper, a study for load flow analysis in a typical power network in Brunei Darussalam is presented. The modelling and simulation of the actual power network is employed in the MATLAB with modified the scripts of the - 30 bus system IEEE script and compared with power system simulator engineering (PSSE/34) software. In addition, a comparison of load flow analysis involving with and without transformer tap changer and vector group is also presented in this paper. It was found that the load flow results were improved by employing the transformer tap changing and their phase-shift vector groups into the network.