Banca de DEFESA: LEANDRO RIBEIRO ALVES DA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : LEANDRO RIBEIRO ALVES DA SILVA
DATA : 27/12/2016
HORA: 15:00
LOCAL: Sala I2
TÍTULO:

Reliability applied in the Preventive Maintenance of Wind Power Plants, with a focus on minimizing maintenance costs with the PREVCONFI program.

PALAVRAS-CHAVES:

Wind Farms, Reliability, Maintenance and Availability

PÁGINAS: 88
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Elétrica
RESUMO:

This job makes the assessment of the wind turbine components with the biggest number of failure rate within all the wind turbine sectors using the wind farm historical operational data. After identifying those components, a more adequate maintenance routine will be planned for those components in order to avoid unexpected failures and consequent financial loss by the lack of energy generation. The proposed routine will have the focus on minimizing the maintenance costs followed by a natural availability increase, also increasing the energy generation. The job will have the reliability study as a basis to be applied to the maintenance. The Weibull Distribution was applied as the probability distribution for this case study. The schedule of maintenance is prepared by a program created in Microsoft Excel that is based on past experiences and occurrences of a specific wind farm, feeding the program with new data in order to re schedule the maintenance schedules in the most appropriate timing for the analyzed systems. Components able to become the wind turbine unavailable in generating energy will be considered as critical components and therefore they will have their maintenance schedule optimized based on costs and observed the respective failure probability which is different from the current maintenance routines that are not dedicated for the wind farms but generalized for any one. The current contracted preventive maintenances are performed time to time and they are not taking into account the criticality of some components Maintenance suppliers are only committed to deliver a minimum availability rate, but without contractual responsibility with energy generation. Also is part of this job, show to the wind farm owners and maintenance suppliers how much is important a Reliability assessment in order to obtain a bigger financial return by minimizing the maintenance costs and improving energy generation based on an adequate maintenance schedule for each specific wind farm.

MEMBROS DA BANCA:
Presidente - 347427 - RICARDO FERREIRA PINHEIRO
Interno - 347429 - JOSE LUIZ DA SILVA JUNIOR
Interno - 346287 - MANOEL FIRMINO DE MEDEIROS JUNIOR
Externo à Instituição - NEILTON FIDELIS DA SILVA - UFRJ