Abstract
Electrical energy is an essential ingredient for the industrial and all-round development of any country. Power distribution systems are radial in configuration and this makes the networks hard to manage, thus, the need for optimization. This paper presents the optimization of network reconfiguration of distribution system using genetic algorithm to get the optimal switching scheme for network reconfiguration with objective function to reduce power loss and improve active power of the system. Load flow for the network reconfiguration problem was formulated as single objective optimization problem. The optimization model was simulated using MATLAB/SIMULINK and validated on standard IEEE 13-bus and 25-bus distribution test feeders. The result shows that active power increases by 91.1% (1.6469p.u.) while the power loss reduced by 99.4% (1.6372p.u.) for 13-bus system. For 25-bus system, active power increased by 27% (0.9154p.u.) and power loss reduced by 96.2% (4.3074p.u.) after optimization. The results provide solutions to the power distribution system for the optimal switching scheme for network reconfiguration with improvement in active power of the system. Total real power loss was minimized according to the corresponding fitness values of the genetic algorithm solutions. The paper provides technical information that could help in the future expansion and operation planning of the power distribution network.
Highlights
The quality of life in any country is highly dependent on a reliable electricity supply
The problems faced by electric power utilities in developing countries today is that the power demand is increasing rapidly whereas, the supply growth is constrained by aging generating and distributing assets, scarce resources for constructing new ones and other societal issues (Anoop, Yogendra, Manisha. 2011; Anthony, Ojo, Joseph. 2013).Ability to use electrical energy when required is one of the fundamental presumptions of a modern society and the introduction of sensitive machines into the network had increased the need for high reliability of supply
In order to study the net effects of network reconfiguration in a distribution power system by changing the switching states of normally closed switches and normally opened switches, script codes were written in MATLAB and simulations was carried out on standard IEEE 13-bus and 25bus distribution test feeder
Summary
The quality of life in any country is highly dependent on a reliable electricity supply. The problems faced by electric power utilities in developing countries today is that the power demand is increasing rapidly whereas, the supply growth is constrained by aging generating and distributing assets, scarce resources for constructing new ones and other societal issues 2013).Ability to use electrical energy when required is one of the fundamental presumptions of a modern society and the introduction of sensitive machines into the network had increased the need for high reliability of supply. The electric power distribution system is a robust network whose optimization requires lots of problem formulation. This is a very huge task for the distribution system operators and engineers The goal of optimization of an electric power transmission system is to minimize objective functions subject to operational constraints of the power system (Maju, Leena, Sexena. 2016; Ogbogu, Anaemeje. 2011)
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