Executive Summary : | Reduction of use of fossil fuel, thermal and nuclear energy is essential to achieve countries goal of accepting more stringent emission reduction target towards decarbonization. Therefore, production of electricity from renewable sources provides a viable option for sustainable development and is of vital importance aligned with the national mission of smart cities and smart villages. Wind energy harvesting is an attractive alternative of renewable energy due to the availability of strong wind near the coastal, desert and mountainous areas where mean wind speed greater than 4 m/s. In the framework of this research proposal, a design algorithm for the wind turbine tower will be developed considering all the possible loads. The effect of the rock/soil-foundation-structure interaction along with the possible liquefaction will be thoroughly investigated by analytical or numerical as well as experimental methods to improve the designing of the wind turbines. Fluid structure interaction will also be taken into account for the accurate estimation of the natural frequencies of the wind-turbine towers. To reduce the vibrational cycles in the tower body due to the excitation forces, a metamaterial based passive system will be designed and impregnated within the hollow core of the main tower structure. Previous failure patterns of wind-turbines indicate that failure of the single component of a wind-turbine leads to the complete destruction of the tower system. To safeguard the structure from global failure, an active control based system will be designed.
By providing enhanced resilient solutions, disasters caused due to the wind-turbine failure can be mitigated and increase its life span. Outcome this project will provide an essential confidence and design guideline to the installation of the wind-turbines throughout the country, specifically, near the coastline, including Andaman & Nicobar Island, Lakshadweep, and the south Indian peninsula from Gujrat to West Bengal of 7500 km coastline, Himalayan belt of 3000km and desert area of 170,000km2. |