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Due to the rapid increase of nonlinear and unbalanced reactive loads in 4-wire distribution systems, various power quality issues such as harmonics current, unbalanced load currents, neutral current and low power factor occur. The need for green and renewable energy sources increases daily due to increase in demand for electrical power. Photovoltaic (PV) energy is an important renewable technology...
Distribution networks commonly utilize three-phase four-wire systems, especially for low-voltage industrial and residential customers. Due to the rapid increase of nonlinear and unbalanced reactive loads in such systems, several power quality issues arise. Among them, line current harmonics, unbalanced load currents, noticeable neutral current and low power-factor. This paper presents a 4-leg shunt...
Distributed generation (DG) is being increasingly embedded in electric four-wire distribution systems which commonly feed three/single phase linear and/or nonlinear loads. This has an impact on power quality of the utility in terms of low power factor, grid current harmonics and unbalance, and neutral current. Conventionally, the DG unit is connected to the grid via a coupling inverter. This inverter...
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