Harmonics and Reliability Analysis of Distribution Network in Presence of Multi-DG using PSO and DigSILENT

This paper presents an approach to the PSO for the optimal allocation of DGs. To improve the voltage profile, reduce harmonics, and upgrade the network’s overall system reliability, a multi-objective function $({\mathbf {F_{m-obj}}})$ has been implemented. This ${\mathbf {F_{m-obj}}}$ also decreases reactive and active power losses. The optimization process involves load flow calculations for the DN and computer simulations performed using MATLAB-DigSILENT to analyze the impact of DG. The IEEE 33 bus DN is executed in this work to incorporate DG. DG effects are investigated for reliability and harmonics under with-DG and without-DG conditions. The system performance outcomes have been improved, such as reactive power, active power, voltage profile, THD, and reliability. Thus, the suggested approach produces superior effects using the presented method.