Análisis del impacto en transitorios y niveles de tensión relacionados con la conexión de micro-redes eléctricas al sistema de distribución
Keywords:
micro-grid, transient, DIgSILENT, renewable energy, distributed generationAbstract
This article presents an analysis of the impact on the distribution system produced by the so-called micro-grids (micro-electric networks), supplied by small generation sources. Studies are developed in both steady state and dynamic state to obtain results that do not affect the network or consumers. The analysis is performed for photovoltaic, wind, diesel generator, gas generator, and mini-hydropower systems, which are part of the University of Cuenca’s micro-grid. The software used for this work was DIgSILENT PowerFactory, enabling the conduct of power flows and electromagnetic transients (EMT) studies. Technical impacts caused by the micro-grid on losses, voltage profiles, overhead lines when it is installed to the closer distribution network are detailed. Also, a sensitivity study is carried out to know if the distribution network is suitable for the interconnection of a micro-grid under the concept of Distributed Generation - GD.
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