Abstract
Network reconfiguration and distributed generation (DG) installation are important approaches for loss mitigation and system efficiency improvement. To date, these approaches are generally implemented separately. In this work, simultaneous network reconfigurations and DG installation is solved in order to minimize real power loss and improve system efficiency using popular heuristic algorithms such as Artificial Bee Colony (ABC), Differential Evaluation (DE), Particle Swarm Optimization (PSO) and Genetic Algorithm (GA). While decision making is carried out for open switches and DG sizing by given algorithms, optimal locations of DGs are decided using loss sensitivity factor in order to reduce searching space. Different cases of network reconfiguration and DG installation are implemented to compare the performances of given heuristic algorithms. Branch current, bus voltages and DG capacity are considered as constraints and 69 bus system is used for simulation. This study demonstrates that simultaneous network reconfiguration and DG installation presents better solutions than any other cases and ABC has proven minimum losses and maximum voltage improvement.DOI: 10.5755/j01.eie.25.1.22729
Highlights
Power losses mostly occur in transmission and distribution (T&D) lines in an electrical network
69 bus test system is considered in order to compare the effectiveness of given heuristic algorithms for solving simultaneous network reconfiguration and distributed generation (DG) installation
Three DGs which are operated with a power factor of unity is considered and they cannot be connected to same bus
Summary
Power losses mostly occur in transmission and distribution (T&D) lines in an electrical network. These losses affect operation of a system negatively and they lead to financial losses. Minimization of T&D losses in the most efficient way is an important issue. Network reconfiguration and distributed generation (DG) allocation are proposed approaches for loss minimization and system improvement. Network reconfiguration and distributed generation are generally discussed separately. Network reconfiguration and DG installation are solved simultaneously to mitigate losses and improve voltage profile
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