Carlos Alberto Oliveira de Freitas

By Jorge de Almeida Brito Júnior, Marcus Vinicius Alves Nunes, Manoel Henrique Reis Nascimento, Jandecy Cabral Leite, Jorge Laureano Moya Rodriguez, Carlos Alberto Oliveira de Freitas, Milton Fonseca Júnior, Edson Farias de Oliveira, David Barbosa de Alencar, Nadime Mustafa Moraes, Tirso Lorenzo Reyes Carvajal and Haroldo Melo de Oliveira

The main objective of thermoelectric power plants is to meet the power demand with the lowest fuel cost and emission levels of pollutant and greenhouse gas emissions, considering the operational restrictions of the power plant. Optimization techniques have been widely used to solve engineering problems as in this case with the objective of minimizing the cost and the pollution damages. Heuristic and metaheuristic algorithms have been extensively studied and used to successfully solve this multi-objective problem. This chapter, several optimization techniques (simulated annealing, ant lion, dragonfly, NSGA II, and differential evolution) are analyzed and their application to economic-emission load dispatch (EELD) is also discussed. In addition, a comparison of all approaches and its results are offered through a case study.

Part of the book: Optimization and Control of Electrical Machines

By Milton Fonseca Junior, Antônio Estanislau Sanches, Jandecy Cabral Leite, Jorge de Almeida Brito Júnior, Manoel Henrique Reis Nascimento, Carlos Alberto Oliveira de Freitas, Tirso Lorenzo Reyes Carvajal, David Barbosa de Alencar, Jorge Laureano Moya Rodriguez, Ubiratan Holanda Berzerra and Nadime Mustafa Moraes

The development of a computational tool to support the decision of load dispatch according to the operational conditions of motors and generators of power plants is proposed, which are classified in relation to the probabilities of faults by a fuzzy system developed in this text, from indicators obtained from the analysis of lubricating oil, vibration analysis, and thermography of power generation equipment. The basis for the study is based on the principle of operation and operational conditions of the equipment to be dispatched for generation in a power plant, in addition to its particularities as specific consumption and the polluting emission for each equipment. In this way, this work aims not only to provide the tools to monitor these equipment but also, based on the management reports of vibration, temperature, and oil analysis, take corrective actions to maintain the necessary reliability and achieve the quality of the service through a preclearance procedure that takes into account the operating conditions of the equipment, obtaining performance indicators of the plan.

Part of the book: Maintenance Management