Optimal Network Reconfiguration and Distributed Generation Integration for Power Loss Minimization and Voltage Profile Enhancement in Radial Distribution System
Date
2022-09
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
I.O.E. Pulchowk Campus
Abstract
Network Reconfiguration with Distributed Generation (DG) integration can significantly
reduce power loss and improve the system voltage. This thesis explores the approach for
reduction in power loss and improvement in system voltage through a combination of network
reconfiguration and DG installation in radial distribution systems. Initially, the approach was
verified in a typical 33 and 69 Test Bus system in MATLAB using the Backward/Forward
Propagation Load Flow approach. Voltage Stability Index (VSI) technique has been applied to
determine the most sensitive bus to locate for DG integration. Artificial Bee Colony (ABC)
algorithm was used to determine the optimal solution. Six scenarios for different combinations
of system reconfiguration and DG installation were analyzed by using NEA 63-Bus real
distribution network of the Nepal Electricity Authority (NEA), Kirtipur Distribution Center.
The simulated results were compared with the base case scenario and were validated with results
from the previous studies for DGs injecting active power only. Among them, Scenario VI
(simultaneous network reconfiguration and DG integration) gave the best result for power loss
reduction and voltage profile improvement. The results obtained in this study show that, for
DGs generating active power only, the percentage reduction in active or real power has been
improved by 72.19%, 83.52%, and 57.69% for the IEEE 33, IEEE 69, and NEA 63-Bus system
respectively. Similarly, for DGs generating both real and reactive power, the power loss has
been reduced by 91.61%, 96.53%, and 90.54% for the IEEE 33,
Description
Network Reconfiguration with Distributed Generation (DG) integration can significantly
reduce power loss and improve the system voltage. This thesis explores the approach for
reduction in power loss and improvement in system voltage through a combination of network
reconfiguration and DG installation in radial distribution systems.
Keywords
Network, Voltage, Power