Maximum Loading of Radial Distribution Networks

Abstract

In this Thesis work, an attempt has been made to determine the maximum loading of electric power distribution system. A new formula for computing the loading of any distribution network is proposed in this thesis work.. Using example of 56-node radial distribution networks, it has been shown that the node having the minimum value become most sensitive node using the proposed method which is also the end node. presents a method for obtaining the maximum allowable loading of radial distribution feeders for different types of loads without violating the maximum current carrying capacity of branch conductors. Minimum voltage of the feeders can also be maintained by allowing the feeders to take load growth up to a specific period of time. The critical values of total real power load (TPL) and total reactive power load (TQL) are derived out for the sub-station voltage of 1.0 pu. for 56-node radial distribution network. The proposed method will reduce the real and reactive power losses, improves voltage profile and enhances the loading capability of distribution network. The proposed method to determine the loading will be very useful for distribution system planning, optimum placement of shunt capacitors, network reconfiguration, etc.