This paper deals with the design, the setup, and the operation of a rotating contactless
energy transfer (CET) system. The system is used to replace the slip rings of an electrical …

This article presents a prototype of a planar aligned transverse flux machine with spatially
distributed phases. This topology enables a flatter assembly space compared to typical …

The excitation system (ES) of the wound-field synchronous machine (WFSM) has remained
largely unchanged over the past 50 years. Nonetheless, there has been significant research …

In this paper several system topologies for the operation of electrically excited synchronous
machines with inductive energy transfer instead of slip rings are presented. In a first step, the …

The contact slip ring has the disadvantages of being easy to wear and short-circuit, and
large-scale pot core is difficult to manufacture. To avoid these shortcomings, a new non …

Wireless power transfer (WPT) systems with rotating coupling mechanisms often use both
radially and circumferentially located metals for encapsulation purposes. Under the …

A novel brushless excitation concept for synchronous machines with a rotating power
converter is proposed in this paper. The concept does not need an auxiliary winding or any …

This paper deals with the control and the operation of an electrical excited synchronous
machine with a rotating contactless energy transfer system to power the excitation coil on the …

The major drawbacks of magnetic resonant coupled wireless power transfer (WPT) to the
embedded sensors on spindles are transmission instability and low efficiency of the …

The replacement of the brushless exciter in the synchronous generator has long been
desired as a method to increase power density. There are many topologies available that …