An Algorithm Based on Superposition Principle for Power Flow of the Weakly Meshed Distribution Network

According to the structure feature of the weakly meshed distribution network, a power flow method based on the superposition principle is proposed in this paper.The network is firstly divided into two networks based on the superposition principle:one is the pure radial network and the other is the pure meshed network.Power flows are solved respectively in the two networks, then power flow calculation is obtained by superimposition the power flows of the two networks.The back/forward sweep method are employed for power flow calculation and the algorithm process.The presented method is tested by 28 nodes system which programmed with C language.The results indicate that the proposed method can save memory and has good convergence performance and high efficiency.