Evaluation of the lightning protection of wind power generators

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Supervisor:
Dr. Kiss István
Department of Electric Power Engineering

Energy policy, environmental awareness, social needs and sustainability are all factors that have forced the energy sector to exhaust all possible and economical options. The fast exploitation of fossile fuels was the last push for renewable energies to quickly gain traction. The service sector has abandoned their course and started researching new- and improving hundreds of years old technologies. Taking the need for long term sustainability into consideration they have turned to energy sources that renew in significantly shorter cycles than the fossile ones. This specificic characteristic has earned their name as well: renewable energy sources. Solar-, water- and wind energy, these three main renewable sources have the potential to satisfy the rapidly increasing thirst for energy.

My thesis focuses on the usage of wind energy. The power plants using the kinetic energy of the wind have been evolving quickly in the past decade, thank the huge energy consumption. As every major investment, wind turbine parks are planned for the long term – this means not only precautions for the known or the sudden internal damages but also against the forces of nature, protection against extreme electric discharges such as lighting. Today’s problem is that the previous generation of wind turbines is not protected for such cases, like winter lightning in Japan.

To look into this issue, we will get to know first the types of wind turbines, the role these power plants play in the energy sectors of Europe and Hungary and then the kinds of wind turbines that are most common in the 21st century. After the introduction we will list the possible failures of the type chosen by me and the primer lighting protection measures respectively. We will use a 3D design program, autoCAD to create a proportional model. This then gets checked and evaluated under laboratory circumtances with the help of a software based on the PMAS theory. Our goal is to analyse the attractive volume and it’s certain points of the model.

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