Load flow method for radial distribution systems with distributed generation using a dynamic data matrix

Abstract

This paper proposes an algorithm to build a dynamic data matrix (DDM) that allows organizing the topology information of a radial distribution system (RDS). The DDM is then used in load flow analysis of RDSs with and without distributed generation (DG). The deterministic equations of the load flow method and the iterative loop to find the bus voltage magnitude and phase angle solutions of an RDS are presented. The load flow method is valid for RDSs with or without DGs, and it is flexible for RDS reconfiguration. A computational program was developed in MATLAB to build the DDM and run the load flow for RDSs of n buses. Finally, the load flow program performance is analyzed with two radial distribution systems of 33 and 119 buses. The results show that the DDM's algorithm and the load flow method are computationally efficient and that the load flow program converges in a short number of iterations.