In this paper, a four-phase 8/10-pole dual armature-winding variable flux reluctance generator (DAW-VFRG) with double-redundant rectifier circuit is proposed for onboard generator. The integrating VFRG and armature winding structure improves fault-tolerant capability power density. Based on the airgap field harmonics analysis function theory, no-load back-EMF model inductance are deduced determ...

Reluctance machines with DC field coil in stator are a competitive candidate for starter generation application, due to the elimination of rare-earth permanent magnet (PM), robust structures, and controllable excitation. However, poor excitation ability coils, torque density is disadvantageous. Moreover, increase current, it exposed risk extra saturation teeth. As consequence, efficiency both c...

Kinetic energy storage systems (flywheels) offer a good solution to increase the stability of electric grid. The joint operation of these systems with renewable energy sources (e.g. photovoltaic (PV) panels, wind generators) can help spreading of these environmental friendly solutions. An investigation is being pursued at Budapest University of Technology and Economics, Department of Electric P...