Wind Energy

Strategy for enhancing reliability and lifetime of DC-AC inverters used for wind turbines

Lifetime of wind turbine inverters is below expectations therefore. novel design and drive strategies are timely required to achieve optimum life span. In this work. a novel driving strategy to mitigate stresses on inverters is proposed. First. an electro thermal analysis was carried out using finite element modelling methods. Subsequently. …

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Characterization of the life cycle greenhouse gas emissions from wind electricity generation systems

The characterized wind electricity generation systems were statistically evaluated to assess the reduction in life cycle GHG emissions. A total of five unique categorization codes (HAWT-ON-S. HAWT-ON-I. HAWT-ON-L. HAWT- OFF-L. VAWT-ON-S) were designated to the 29 wind electricity generation LCA studies (representing 74 wind system cases) using the proposed categorization …

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Robust design and optimization procedure for piled-raft foundation to support tall wind turbine in clay and sand

Wind energy. an alternative to conventional energy produced by burning fossil fuels. is a renewable and clean energy which produces no greenhouse gas emissions during operation. consumes no water. and uses only a little land. With the rapidly growing world population. it is essential to increase the production of energy …

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