Defence of dissertation in the field of Electromechanics, M.Sc. (Tech.) Sahas Bikram Shah
The title of thesis is “Inter-laminar Contacts and Losses in Cores of Electrical Machine”
A continuous increase in energy demand in power sector calls for energy efficient electrical machines. Even a small improvement in efficiency in such machines has a huge impact on the economy and the environment. A key factor to improve the efficiency of the machine is to minimize the losses in the machine. These losses are well defined in the standards, but there are additional losses in electrical machines that cannot be accurately calculated. Accurate prediction and identification of such losses in the electrical machine are essential for the proper design and achievement of high-efficiency targets. It is believed that these losses are somehow associated with the manufacturing processes of electrical machines.
Random inter-laminar contacts occur between the electrical sheets of electrical machines due to the effect of the manufacturing process. This thesis proposes several numerical formulations based on finite element method to account for these random inter-laminar contacts. Experimental methods together with other numerical methods developed in this thesis assist in assessing additional losses due to inter-laminar contacts in electrical machines and contributes to the field of energy efficiency.
Opponent: Professor Anthony J. Moses, Cardiff University, Great Britain
Custos: Professor Antero Arkkio, Aalto University School of Electrical Engineering, Department of Electrical Engineering and Automation.
Notice of dissertation defence (pdf.)
Contact information: Sahas Bikram Shah, +358504602374,firstname.lastname@example.org