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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Sistema de conex?o e supervis?o de pain?is solares em Microgrid de corrente cont?nua

Albuquerque, Leonardo Duarte de 23 June 2017 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-09-05T21:38:16Z No. of bitstreams: 1 LeonardoDuarteDeAlbuquerque_DISSERT.pdf: 36580121 bytes, checksum: bba04c74111ace6c5ffb8a39be098f1e (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-09-18T21:19:25Z (GMT) No. of bitstreams: 1 LeonardoDuarteDeAlbuquerque_DISSERT.pdf: 36580121 bytes, checksum: bba04c74111ace6c5ffb8a39be098f1e (MD5) / Made available in DSpace on 2017-09-18T21:19:25Z (GMT). No. of bitstreams: 1 LeonardoDuarteDeAlbuquerque_DISSERT.pdf: 36580121 bytes, checksum: bba04c74111ace6c5ffb8a39be098f1e (MD5) Previous issue date: 2017-06-23 / A escassez dos recursos naturais e a busca por fontes de energia alternativa promovem uma r?pida mudan?a na matriz energ?tica mundial. Dentre as fontes de energia renov?veis a energia solar ? a mais promissora, visto que ela apresenta a maior taxa de crescimento na atualidade. Pesquisadores de todo o mundo t?m buscado formas de viabiliza??o do seu progresso, desenvolvendo tecnologias com maior efici?ncia e menor custo. Como forma de contribuir para o avan?o desta tecnologia, neste trabalho prop?e-se o desenvolvimento de uma microgrid em corrente cont?nua interligando os pain?is fotovoltaicos atrav?s de um dispositivo com estrat?gia de rastreamento elaborada a partir do m?todo perturba??o e observa??o, que atuar? junto a um circuito eletr?nico de pot?ncia e um sistema de comunica??o sem fio para acompanhamento da gera??o individual. Simula??es foram desenvolvidas para a escolha da topologia de liga??o e compara??o entre o m?todo de controle proposto e o tradicional, atribuindo-se diferentes n?veis de entrada e constatando-se graficamente as respostas de sa?da. Com o projeto e desenvolvimento dos circuitos, firmware e placa de circuito impresso do dispositivo proposto, p?de-se efetuar experimentos para constatar sua capacidade de convers?o de energia e verificar as respostas dos m?todos de controle supracitados, colocando-o como uma poss?vel op??o vi?vel e somando uma pequena contribui??o ?s tecnologias embarcadas na ?rea de energias renov?veis. / The scarcity of natural resources and the search for alternative energy sources promote a rapid change in the global energy matrix. Among the renewable energy sources solar energy is the most promising, since it has the highest growth rate at present. Researchers around the world have sought ways of enabling their progress, developing technologies with greater efficiency and lower cost. As a contribution to the advancement of this technology, this document proposes the development of a microgrid in continuos current connecting the photovoltaic panels through a device with tracking strategy developed based on the method perturbation and observation that will advise the electronic circuit power and a wireless communication system for monitoring of individual generation. Simulations have been developed for to choice of connection topology and comparison between the proposed and traditional control method, assigning different input levels and graphically checking the output responses. With the design and development of the circuits, firmware and printed circuit board of the proposed device, it was possible to carry out experiments to verify its capacity of energy conversion and to verify responses of control methods mentioned above, placing it as an viable option and adding a small contribution to technologies of embedded system in the of renewable energy field.

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