Control Strategies for Improving Energy Efficiency and Reliability in Autonomous Microgrids with Communication Constraints

Francisco Martins Portelinha Júnior, Antonio Carlos Zambroni de Souza, Miguel Castilla, Denisson Queiroz Oliveira and Paulo Fernando Ribeiro
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Francisco Martins Portelinha Júnior: Radiocommunications Reference Center (CRR) - National Institute of Telecomunications (INATEL), Av. João de Camargo, 510, Santa Rita do Sapucaí 37540-000, Brazil
Antonio Carlos Zambroni de Souza: Federal University of Itajubá, Av. BPS, 1903, Pinheirinho, Itajubá 37540-000, Brazil
Miguel Castilla: Technical University of Catalunya, 08800 Vilanova i la Geltrù, Spain
Denisson Queiroz Oliveira: Federal University of Maranhão, Av. Portugueses 1966, São Luis 65080-805, Brazil
Paulo Fernando Ribeiro: Federal University of Itajubá, Av. BPS, 1903, Pinheirinho, Itajubá 37540-000, Brazil

Energies, 2017, vol. 10, issue 9, 1-16

Abstract: Microgrids are a feasible path to deploy smart grids, an intelligent and highly automated power system. Their operation demands a dedicated communication infrastructure to manage, control and monitor the intermittent sources of energy and loads. Therefore, smart devices will be connected to support the growth of grid smartness increasing the dependency on communication networks, which consumes a high amount of power. In an energy-limited scenario, one of the main issues is to enhance the power supply time. Therefore, this paper proposes a hybrid methodology for microgrid energy management, integrated with a communication infrastructure to improve and to optimize islanded microgrid operation at maximum energy efficiency. The hybrid methodology applies some control management rules, such as intentional load shedding, priority load management, and communication energy saving. These energy saving rules establish a trade-off between increasing microgrid energy availability and communication system reliability. To achieve a compromised solution, a continuous time Markov chain model describes the impact of energy saving policies into system reliability. The proposed methodology is simulated and tested with the help of the modified IEEE 34 node test-system.

Keywords: smart grids; distributed resources; microgrids; communication networks (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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