Optimal Placement and Sizing of Custom Power Devices using PSO and APSO Optimization in Radial Distribution Network

In today's electricity system, power quality is a significant concern regardless of the voltage or current level. To address this issue, custom power devices (CPDs) have been introduced. In the considered system, six nonlinear load have been placed at different locations to introduce harmonics into the system. This paper focuses on strategic placement of CPDs in IEEE 15 bus system using MATLAB software. The primary objective is to minimize both the voltage total harmonic distortion (THD) and the individual harmonic distortion. The constraints ensure that the levels remain within the established standards, while also maintaining the voltage of each node within specified limits. Additionally, the study examines the performance of allocated CPD in controlling voltage quality and reactive power. In this work, particle swarm optimization (PSO) and adaptive particle swarm optimization (APSO) techniques have been employed to determine the optimal sizing and siting of CPDs. A comparison of the results obtained from these optimization methods is presented.