  One of the main tasks during the design of a superconducting electrical
machine is the estimation of losses in the superconducting coils. These losses
can be decisive in such applications since they influence the cooling power
requirements and the overall efficiency of the machine. In this publication, we
focus on the dissipation in the stator superconducting coils of a synchronous
machine for a wind turbine application. The T-A formulation of Maxwell's
equations is used in a 2D finite element model to analyse the behaviour of the
magnetic field around the coils and calculate losses. Particular attention is
given to the position of the coils inside a slot and several coil
configurations are presented. It is shown that certain coil arrangements lead
to a significantly lower total loss, a more uniform loss distribution, which
ultimately leads to the possibility of increasing the operating temperature.
