Optimal location and capacity of DG systems in distribution network using genetic algorithm
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ORIGINAL RESEARCH
Optimal location and capacity of DG systems in distribution network using genetic algorithm M. Madhusudhan1 • N. Kumar1 • H. Pradeepa1
Received: 12 November 2019 / Accepted: 6 October 2020 Bharati Vidyapeeth’s Institute of Computer Applications and Management 2020
Abstract The assimilation of distributed generators (DG) does play a critical role in modern distribution networks. Due to increasing demand for electrical energy, the DG sources are becoming more significant in distribution systems. The position and size of DG units will have an impact on losses and voltage profile of the distribution system. This work proposes implementing the Genetic Algorithm approach to determine the optimal site as well as the size of DG units in the distribution network to mitigate actual power losses and enhance the voltage profile. The optimal position and optimal capacity of DG unit is computed by GA algorithm and by using three indices namely PLRI, VDI and MORI we determine three solutions one for exclusively reduction in system loss, the second one for improvement of voltage profile and third one for combined benefit in minimization of losses and improved performance of the bus voltages, the proposed method is applied to the IEEE-33 bus test system. The programming is executed in the software MATLAB 2018a. Keywords Distributed generator (DG)–Power Loss Reduction Index (PLRI) Voltage Deviation Index (VDI) and Multi Objective Ranking Index (MORI) Genetic algorithm (GA)
& M. Madhusudhan [email protected] N. Kumar [email protected] H. Pradeepa [email protected] 1
Department of Electrical and Electronics Engineering, The National Institute of Engineering, Mysuru, Karnataka, India
1 Introduction In the recent simple times, many worldwide electrical utilities have been forced to change their operating and business rules from a vertically integrated mechanism to an open market system. This can be seen in such countries as the United Kingdom, Sweden, Finland, Norway, the United States and some South American countries. In Developed countries, the issue is with high demand progress fixed with ineffective system organization and unreasonable tariff plans. Deregulation affects the accessibility of the economic capitals to provide funds in improving generation and transmission capacities. In developing countries, sufficient driving force is there to afford the electricity at cheap rate and offer it at better optimal in obtaining economic energy. The goal of changing the way of operation, i.e. deregulation, is to enhance competition and get other choices for consumers. Due to deregulation, the vertically integrated utility needs to carry out all work in the power sector, i.e. generation, transmission and distribution and sales and retail are all split into different companies to perform individual functions in the power sector. In turn, this deregulation has helped to install Distributed Generators (DG).
2 Literature review The reasons for deregulation are many such as privatization, decrease in
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