General Purpose Efficient power flow model representation of network from generation bus to load bus

Abstract

In analyzing the electrical networks power flow solution is very essential. There are numerous power flow models for transmission as well as distribution systems. It is also evident from the literatures that several new models exclusively for distribution networks are being developed. It is suggested here that instead of having many models, the models applied for transmission networks can be applied to distribution networks with some modifications. This paper presents the study of several transmission and distribution power systems to explore applicability of the Constant Complex Matrix Power Flow Model (CCMPFM) [1] and also gives comparison with General Purpose Fast Decoupled Power Flow (GFDPF) model [3]. The results demonstrate that the CCMPF model possess more stable convergence for both well-behaved and ill-conditioned systems when compared to GFDPF. This model has strong convergence characteristics for distribution networks also when compared to Stott's model. This CCMPF model can be applied for transmission networks, stand alone radial as well as weakly meshed distribution networks. Also the whole interconnection of transmission and distribution network is studied with one single model and good converging results are obtained. From the results, this paper suggests that a single power flow model is sufficient for studying the entire electric power network right from the generation point to load point without many models.