Publication Type
Conference Paper
Book Title
2024 IEEE Energy Conversion Congress and Exposition (ECCE)
Publication Date
Page Numbers
7453 to 7455
Publisher Location
New Jersey, United States of America
Conference Name
IEEE Energy Conversion Congress and Exposition (ECCE)
Conference Location
Phoenix, Arizona, United States of America
Conference Sponsor
IEEE, IEEE IAS, IEEE PELS
Conference Date
-
Abstract
This paper presents the magnetic design of a high-frequency three-phase rotary transformer for Wound Rotor Synchronous Motors (WRSM). The traditional DC field excitation of the WRSM is highly challenging as it relies on the brushed connection. The brush/slipring-based connections need cooling, sealing and prone to wear and tear requiring regular maintenance. The proposed three-phase rotary transformer replaces the traditional brushed excitation by a high-power density polyphase wireless excitation. Furthermore, compared to a traditional single-phase rotary transformer, the proposed three-phase rotary transformer significantly enhances the power density, and reduces the eddy current losses and the output voltage ripples.
