Estudo técnico e econômico sobre a influência de transformador acoplado a micro geração distribuída fotovoltaica

Abstract

Nowadays, small businesses seek to reduce the operation costs with the aim of increase their working capital and support others activities carried out by the company. The photovoltaic system has been an attractive investment for this kind of companies. In according of the Resolução Normativa (RN) nº 482/2012, and updated by RN nº 687/2015, described by ANEEL (Agência Nacional de Energia Elétrica), the distributed generation can be used for the main purpose offsetting credits with the local energy concessionaire, in such way the energy bill of these business is reduced considerably. For a financial analysis of the distributed generation implementation, it is necessary to consider plant’s operation and maintenance costs, however, such a study sometimes is not elaborated in a complete way during the quotation and equipment’s acquisition process. The main purpose of this study is present a technical solution for the automatic disconnection and connection of a power transformer coupled to a micro PV system at times that it is operating in no-load moments, such that it is possible to verify costs and losses of this kind of system operation.