Wireless power transfer (WPT) promises to be an alternative solution for secure and
versatile charging of electric vehicles. However, some challenges still exist in this …

Permanent magnet (PM) synchronous machines are utilized in a wide variety of applications
due to their many desirable characteristics, including high torque density capability and high …

The cost of rare earth (RE) permanent magnet along with the associated supply volatility
have intensified the interests for machine topologies, which eliminate or reduce the RE …

This paper evaluates a three-phase ac main exciter (ME) for a wound-field synchronous
aircraft starter-generator capable of operating in both starting and generating modes. The …

This paper analyzes a 90-kW brushless doubly fed three-phase induction machine in which
a wound rotor circuit is connected to a rotary transformer. It presents the advantages of …

Wound field synchronous machines (WFSMs) are an attractive alternative to permanent
magnet synchronous machines (PMSMs) given their competitive power/torque density and …

With the development of more electric aircraft (MEA), higher demands for electrical energy
are put forward in generation systems. Compared to constant frequency AC (CFAC) …

Contactless sliprings provide a safe and reliable power transfer solution with low
maintenance for rotary applications. The magnetic design is a critical part of such a …

Cables or slip-rings are often used to power loads on a rotating unit in the rotation
modulated inertial navigation system (RMINS). However, these power supply methods have …

This paper discusses the optimal design of a pot core rotating transformer to replace wires
and slip rings in mechatronic systems by means of contactless energy transfer. Analytic …