Pemodelan Komponen Berbasis Arus Injeksi Untuk Perhitungan Aliran Beban Tak Seimbang

Abstract

Unbalanced power flow is essential calculation for analysis of unbalanced electrical distribution system. A number of analyses on the system use unbalanced power flow calculation as the backbone of analyses. Therefore the accuracy of the calculation is crucial for the results of analyses. Unbalanced power flow is carried by considering three-phase system of distribution system. One of important aspect on unbalanced power flow calculation is modelling of system components. This paper proposes a model of the components as bus injection current for unbalanced power flow calculation using the method of forward-backward propagation algorithm. The algorithm works directly on the system without modification and requires modeling of shunt components as current injection. The method is appointed due to the robust and good convergence characteristics. The system model and the algorithm are implemented on the IEEE 34-bus system and the generated results are analyzed. Furthermore, the algorithm is also employed for analyzing the system compensated by shunt capacitors and the system improvements are the discussed. The contribution of the paper is inclusion of unbalanced condition for power flow analyses.