Simulation and Analysis of a New High Power Density Generator

When high power electrical machines are required, an increase in the mechanical frequency and/or number of poles is suggested. The analyzed electrical machine produces a high torque density due to a concentrated winding arrangement, in combination with the increased width of the stator teeth. It is a permanent magnet synchronous generator, [1] and is intended for operation at high speed and high power applications. The large crosssectional area of the magnetic core flux paths is one of the reasons of the generators good performance. In this paper the impact on output power and losses by increasing number of poles and generated input speed is treated. New soft magnetic material also is addressed. The feasibility of using key parameters of the involved electrical machine, estimated by FEM-analyses and condensed into a quasistatic model, [2] is also addressed in this paper. These extracted parameters constitute a platform for a scaleable model.