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Authors
Abstract(s)
A procura por energia, e consequentemente por energias limpas faz com que o setor das
energias renováveis esteja em constante desenvolvimento tecnológico, onde se destaca a
produção de energia eólica. A maximização dos ativos é essencial para o crescimento das
empresas e um parque eólico apesar de todas as especificidades que possui, não deixa de ser
uma instalação industrial para a produção de energia elétrica.
O objetivo principal deste estudo de caso foi a aplicação de algumas metodologias de
gestão Lean focalizadas na melhoria contínua e na manutenção produtiva total (TPM), com
base nas normas internacionais (ISO) e as normas europeias (EN) que definem os vários tipos
de manutenção bem como os indicadores chave de performance da manutenção (KPI’s).
No trabalho desenvolveu-se uma metodologia para a identificação e seleção de
indicadores da manutenção, para isso foi necessário efetuar o levantamento, registo e análise
de todas as atividades operacionais e registos de paragens dos aerogeradores para o período em
estudo. Desta forma foi possível a quantificação, análise e aplicabilidade de diversos
indicadores de manutenção, que se tornam ferramentas indispensáveis na tomada de decisão.
No âmbito deste estudo de caso selecionaram-se os indicadores mais importantes que serão
usados nos relatórios gráficos (dashboards), e que são fundamentais para desenvolvimento de
planos futuros e melhorias a implementar na operação e manutenção do parque eólico.
A imprevisibilidade no parque eólico, provocada por fatores externos como o excesso
de vento ou chuva, condiciona muitas vezes a planificação dos trabalhos, forçando a que o
processo de manutenção seja dinâmico e flexível. Apesar do processo de manutenção ser
dinâmico todos os indicadores apresentaram resultados bastante satisfatórios salientando-se
zero acidentes para os indicadores de manutenção ao nível da higiene, segurança e saúde no
trabalho. Ao nível operacional destaca-se a redução de 13% no tempo reportado em tarefas
administrativas e um aumento nas atividades fundamentais para a exploração do parque eólico.
ABSTRACT: The claim for energy, and consequently for green energy, means that the renewable energy sector is in constant technological development, where the production of wind energy stands out. The maximization of assets is essential for business growth and a wind farm, despite all its specificities, is still an industrial facility for electricity production. The main objective of this case study was the application of some Lean management methodologies focused on continuous improvement and total productive maintenance (TPM), based on international standards (ISO) and European standards (EN) that define the various types of maintenance as well the key maintenance performance indicators (KPI's). The work developed a methodology for the identification and selection of maintenance indicators and it was necessary to carry out a survey, registration and analysis of all operational activities and records of shutdowns of wind turbines for the period under study. In this way, it was possible to quantify, analyze and apply various maintenance indicators, which become indispensable tools in decision-making. Within the scope of this case study, the most important indicators that will be used in the graphic reports (dashboards) were selected, and that are fundamental for the development of future plans and improvements to be implemented in the operation and maintenance of the wind farm. The unpredictability on wind farm, due to external factors such as high wind or rain, often affects the scheduled works, attesting that the maintenance process is dynamic and flexible. Although the maintenance process is dynamic, all indicators showed very satisfactory results, highlighting zero accidents for maintenance indicators in terms of environment, health and safety. At the operational level, there was a 13% reduction on time reported in administrative tasks and an increase in essential activities to the wind farm exploration.
ABSTRACT: The claim for energy, and consequently for green energy, means that the renewable energy sector is in constant technological development, where the production of wind energy stands out. The maximization of assets is essential for business growth and a wind farm, despite all its specificities, is still an industrial facility for electricity production. The main objective of this case study was the application of some Lean management methodologies focused on continuous improvement and total productive maintenance (TPM), based on international standards (ISO) and European standards (EN) that define the various types of maintenance as well the key maintenance performance indicators (KPI's). The work developed a methodology for the identification and selection of maintenance indicators and it was necessary to carry out a survey, registration and analysis of all operational activities and records of shutdowns of wind turbines for the period under study. In this way, it was possible to quantify, analyze and apply various maintenance indicators, which become indispensable tools in decision-making. Within the scope of this case study, the most important indicators that will be used in the graphic reports (dashboards) were selected, and that are fundamental for the development of future plans and improvements to be implemented in the operation and maintenance of the wind farm. The unpredictability on wind farm, due to external factors such as high wind or rain, often affects the scheduled works, attesting that the maintenance process is dynamic and flexible. Although the maintenance process is dynamic, all indicators showed very satisfactory results, highlighting zero accidents for maintenance indicators in terms of environment, health and safety. At the operational level, there was a 13% reduction on time reported in administrative tasks and an increase in essential activities to the wind farm exploration.
Description
Keywords
Lean TPM Key performance indicators (KPI’s) Types of maintenance Wind energy