Distributed Generation Placement Using Voltage Stability Index and Optimal Sizing Using Adaptive Particle Swarm Optimization

Osmania University

¹ CorrespondingAuthor Mail: srilatha90@gmail.com

Abstract

Distribution systems are the major interface between the electricity consumer and the electrical transmission system. Requisite amount of planning is necessary for these systems to be in order as they are vast and complex. An important concern on the operation of distribution systems is its voltage stability. Placing of Distributed Generation (DGs) in the distribution system can address these concerns in a better way. The location and rating of these DGs is going to have a deep impact on the voltage profile of the system. Owing to the complexity of distribution networks, planning of these networks and placing DGs is furthermore complex. Hence, the traditional methods of distribution system operation will not be sufficient in composing DGs. Therefore, proposed method utilizes Voltage Stability Index (VSI) to find best location to place a DG and Adaptive Particle Swarm Optimization (APSO) to find the appropriate capacity of DGs optimally that minimize the active power loss of the distribution network. IEEE 33-bus and IEEE 69-bus radial distribution systems are considered to test the proposed method of DG placement. The voltage magnitudes and the power loss incurred in the system are portrayed to analyze the attainments of the newly proposed method.