A rede de média tensão como meio de transporte de dados em redes smart grid

• Ano de defesa: 2015
• Autor(a) principal: Castor, Leonardo Ribas Martins
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Engenharia Elétrica; Centro Tecnológico; UFES; Programa de Pós-Graduação em Engenharia Elétrica
• Palavras-chave em Português: Power Line Communication (PLC); Automação; Smart Grid; Redes elétricas - Sistemas de comunicação; Automação industrial; Gás; Óleo - Indústria; Engenharia Elétrica; 621.3
• Link de acesso: http://repositorio.ufes.br/handle/10/9652

The main purpose of any company is to increase its production with reduced operating costs and in the Oil & Gas industry is not different. In this scenario industrial automation plays a key role, maximizing operational safety and production efficiency. The use of human resources in order to operating, monitoring and controlling productionś processes is intense on this field, which is, yet, a serious drawback for this kind of company. Systems communications as part of the productionś automation contribute for reducing the operative expenditure and at same time provide efficient and reliable data traffic. The Oil & Gas industry has used fibre optics and wireless communications systems as last mile network solutions. However, these networks are implemented with high costs and at long time. More recently, the technology of data transmission over power line grid, called PLC, has becomes economically and technically a more interesting solution related to others technologies. As the onshore oil wells are already covered by the medium voltage power line grid, the reduced installationś costs for a PLC data network makes the project mre attractive. Additionally, the new PLC system use modern techniques, such as, adaptative coding and modulation, multiple access protocols, QoS, etc, for ensuring robustness, better use of signal power and greater privacy of data transmitted. In contrast, its performance depends on the communication channel condition based on transmission multipath, frequency selectivity, impulsive noise, RF interference, and others. This work was developed under a real scenario of Smart Grid conception. Through a three-phase medium voltage grid, supervisory, control and video surveillance information in oil production process have been transported to the remote operation center located at SM-8, São Mateus. It was obtained upstream and downstream speeds of 60 Mbps approximately in the physical layer through a multipath PLC channel with 322 m long without repeater. In a multipath stretch of 2 km long, a 3 Mbps ethernet traffic composed by automation data and high-definition images, was transported in a real-time frame to their servers without errors.