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The rapid use of distributed energy resources has increased as a supplement and also an alternative to large conventional grid power stations. However, the presence of non-linear loads in the utility grid will ultimately result to generation of the current and voltage harmonics and this in turn will hamper the power quality of the whole power system. Recently, the utility grids are accommodated with...
In this modern scenario of globalization, renewable energy resources is one of the most essential energy alternative to be used instead of conventional fossil fuels. This paper presents the power quality management of grid bus system in presence of asymmetrical load. The presence of asymmetrical load structure in utility grid directly affects the supply voltage and current. Here, the PV fed system...
Distributed generation units with small energy sources, such as fuel cells, micro-turbines, and photovoltaic devices, are generally connecting to micro grid and distribution grid for improvement of power quality. In distributed system, generation units are connected with micro grid/distribution grid using three phase inverters. The presence of unbalanced load structure in micro-grid directly affects...
With the development of power system the complexity is increased by many folds at present time. The 21st century power users and consumers expectation on power quality is very high. At the same time consumers of nonlinear loads such as power converters etc also increasing. Therefore the online behavior of the power supply characteristics is changing with the unexpected users. The equipments which...
In this paper an efficient technique to solve optimal power flow problem considering both real and reactive sub-problems is proposed. The real power sub-problem is the traditional economic dispatch. The reactive power sub-problem is treated as real power transmission loss minimization problem. Particle swarm optimization method is used for solving the nonlinear optimization problems. While minimizing...
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