Costa, Flávio BezerraSilva, João Paulo de Oliveira e2018-10-052018-10-052017-11-24SILVA, João Paulo de Oliveira e. Implementação de controle baseado em impedância virtual para sistemas fotovoltaicos conectados à rede elétrica. 2017. 97f. Dissertação (Mestrado em Engenharia Elétrica e de Computação) - Centro de Tecnologia, Universidade Federal do Rio Grande do Norte, Natal, 2017.https://repositorio.ufrn.br/jspui/handle/123456789/25961Virtual impedance concept has been increasingly used in power electronics-based power systems. Virtual-impedance-based control schemes provide a way of shaping converters dynamic profile, essentially using a circuit-oriented control concept, with the advantage of having no power losses. Using virtual impedances for output impedance control allows converters to provide auxiliary functions as power flow control, grid fault ridethrough, harmonic compensation, and improve converter stability against different grid and load conditions. This master’s dissertation proposes an implementation of virtual impedance-based control scheme on a photovoltaic system grid-connected three-phase inverter. Different virtual impedance implementations, and their functions, are presented and the photovoltaic system considered and virtual impedance-based control scheme are described. Simulation and experimental results of virtual impedance implementation are presented, validating the proposed control strategy.Acesso AbertoGeração distribuídaEnergia solar fotovoltaicaInversor fonte de tensãoImpedância virtualmasterThesisCNPQ::ENGENHARIAS::ENGENHARIA ELETRICA