Use of the rotating rectifier board as a capacitive power coupler for brushless wound field synchronous machines

S Hagen, M Tisler, J Dai, IP Brown… - IEEE Journal of …, 2020 - ieeexplore.ieee.org
Wound field synchronous machines (WFSMs) are an attractive alternative to permanent
magnet synchronous machines (PMSMs) given their competitive power/torque density and …

Synchronous generator brushless field excitation and voltage regulation via capacitive coupling through journal bearings

J Dai, S Hagen, DC Ludois… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
Wound field synchronous generators (WFSG) are the standard electromechanical converter
for back-up and utility scale power generation. Maintenance costs may be minimized by …

Design and demonstration of a wound field synchronous machine for electric vehicle traction with brushless capacitive field excitation

A Di Gioia, IP Brown, Y Nie, R Knippel… - IEEE Transactions …, 2017 - ieeexplore.ieee.org
This paper describes the modeling, optimization, mechanical design, and experimental
characterization of a high power density wound field synchronous machine (WFSM) for …

Synchronous generator field excitation via capacitive coupling through a journal bearing

J Dai, S Hagen, DC Ludois… - 2016 IEEE Energy …, 2016 - ieeexplore.ieee.org
Wound field synchronous generators (WFSG) are the standard for back-up and utility scale
power generation. Rotor field current and prime mover speed are the only control …

Simplified brushless wound field synchronous machine topology based on a three-phase rectifier

SSH Bukhari, H Ahmad, GJ Sirewal, JS Ro - IEEE Access, 2021 - ieeexplore.ieee.org
This paper proposes a novel simplified brushless wound field synchronous machine (BL-
WFSM) topology based on an uncontrolled three-phase rectifier. The output of the rectifier is …

Wound field synchronous machine with segmented rotor laminations and die compressed field winding

M Salameh, T Spillman… - 2019 IEEE Energy …, 2019 - ieeexplore.ieee.org
To increase the torque density of salient pole wound field synchronous machines (WFSMs)
a high slot fill die compressed field winding is investigated. Increasing the slot fill of the field …

Capacitive power transfer for rotor field current in synchronous machines

DC Ludois, JK Reed, K Hanson - IEEE Transactions on Power …, 2012 - ieeexplore.ieee.org
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 …

On saliency enhancement of salient pole wound field synchronous machines

W Liu, TA Lipo - 2016 IEEE Energy Conversion Congress and …, 2016 - ieeexplore.ieee.org
Salient pole wound field synchronous machines (WFSMs) share similar torque
characteristics as permanent magnet (PM) machines, but are free of permanent magnet …

Capacitive power transfer for slip ring replacement in wound field synchronous machines

DC Ludois, K Hanson, JK Reed - 2011 IEEE Energy …, 2011 - ieeexplore.ieee.org
Permanent magnet synchronous machines are utilized in a wide variety of applications due
to their many desirable characteristics, including high torque density capability and high …

Influence of DC winding configuration on its induced voltage in wound field machines

ZZ Wu, ZQ Zhu, C Wang, JC Mipo… - IEEE Transactions …, 2018 - ieeexplore.ieee.org
DC winding induced voltage pulsation in the wound field synchronous machines (WFSMs)
will cause dc winding current ripple, challenge the dc power supply, and deteriorate the …