Optimal Placement of Distributed Generation Units in Power Distribution Networks Using Particle Swarm Optimization
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Date
2025-06
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Journal ISSN
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Publisher
Tanzania Journal of Engineering and Technology
Abstract
Power losses and voltage drops in distribution networks are critical
issues in power system operation, reducing efficiency, reliability, and
overall quality of the power supply to customers. Additionally, the
rising electricity demand, deregulation of energy markets, and
congestion in transmission networks have further contributed to the
declining performance of the grid. To address these challenges,
integrating distributed generation units (DGUs) into electric
distribution systems has gained significant attention. Furthermore, the
integration of DGUs into conventional fossil fuel-based power plants
is becoming necessary to reduce greenhouse gas emissions. However,
proper placement and sizing of DGUs are crucial for achieving optimal
benefits. Inappropriate placement and sizing can lead to increased
losses and degraded system performance, whereas optimal placement
can enhance voltage stability and minimize power losses, thereby
improving overall system performance. This study presents a particle
swarm optimization (PSO) technique for determining the optimal
placement and sizing of DGUs in power distribution networks. The
proposed PSO approach considers voltage and power constraints to
ensure operational requirements are met. The methodology is validated
using IEEE 33-bus system simulations under three different scenarios:
a network without DGUs, a network with one DGU, and a network with
two DGUs. Simulation results demonstrate that optimal DGU
placement significantly reduces power losses, minimizes voltage drops,
and enhances system performance compared to a network without
DGUs.
Description
This journal Articles was published by Tanzania Journal of Engineering and Technology