Optimal Allocation and Sizing of Distributed Generators for Multi-Objective Function in Distribution Network Using Intelligent Water Drop Algorithm

Abstract

There is need to optimize the operation of a distribution system for power losses minimization, voltage profile improvement and network efficiency. The researchers in this work have deployed novel concept in order to achieve the above aim. The main purpose of this research is to minimize voltage drop and total active power losses in IEEE-33 bus and Irrua Distribution Network (IDN). Stability Index (SI) is used to optimally allocate DGs, while the Intelligent Water Drop Algorithm (IWD) is deployed for computing the size of DGs. IWD is an algorithm which is inspired by nature were water drops or river find easy path to flow from source to its destination when the entire possible path from source to its destination are available. The proposed method is demonstrated on IEEE-33 bus and IDN. From the simulation results obtained, it was observed that the proposed method optimally placed DGs on two (2) buses for IEEE 33 Bus network and IDN, the power loss were minimized by 66.3% and 60% respectively, also there was great improvement on the voltage profile and Stability index for both networks. The proposed method was compared with other existing methods and it proves to perform better in terms of power losses.