Power Loss Minimization and Grid Stability Enhancement in IEEE 33-Bus Network using African Bison Optimization

Power distribution systems, especially radial topologies like IEEE 33-bus network, commonly challenges severe problems such as high-power losses, voltage profile instability, and high voltage drops during peak load periods, primarily due to the high line resistance. Although the aim of Distributed Generation (DG) is to minimize losses and ensure voltage stability, improper placement, and sizing of DG leads to higher losses and inefficient operation. To mitigate these consequences, this work proposes an African Bison Optimization (ABO) for optimal placement and sizing of DG units in the IEEE 33-bus radial distribution system. Specifically, proposed approach utilizes Voltage Stability Index (VSI) to identify proposed buses for DG installation, and ABO accomplished to identify optimal sizes for DG units to minimize real and reactive power losses and maintaining improved voltage profiles. Simulation results demonstrate that the proposed ABO solution performs significantly well at reducing distribution losses while improving the overall voltage stability.