Simplified Approach for Load Flow Analysis of Radial Distribution Network with Embedded Generation

This paper presents a simple approach for load flow analysis of a radial distribution network with embedded generation. The proposed approach utilizes forward and backward sweep algorithm based on Kirchoff's current law (KCL) and Kirchoff's voltage law (KVL) for evaluating the node voltages iteratively. In this approach, computation of branch current depends only on the current injected at the neighbouring node and the current in the adjacent branch. This approach starts from the end nodes of sub lateral line, lateral line and main line and moves towards the root node during branch current computation. The node voltage evaluation begins fro in the root node and moves towards the nodes located at the far end of the main, lateral and sub lateral lines. The proposed approach has been tested using three radial distribution systems of different size and configuration and is found to be computationally efficient. The effectiveness of the proposed approach is further demonstrated by integrating the embedded generation into the load flow analysis of the radial distribution network.