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.
| Original language | English |
|---|---|
| Title of host publication | 2024 IEEE Energy Conversion Congress and Exposition, ECCE 2024 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 7453-7455 |
| Number of pages | 3 |
| ISBN (Electronic) | 9798350376067 |
| DOIs | |
| State | Published - 2024 |
| Event | 2024 IEEE Energy Conversion Congress and Exposition, ECCE 2024 - Phoenix, United States Duration: Oct 20 2024 → Oct 24 2024 |
Publication series
| Name | 2024 IEEE Energy Conversion Congress and Exposition, ECCE 2024 - Proceedings |
|---|
Conference
| Conference | 2024 IEEE Energy Conversion Congress and Exposition, ECCE 2024 |
|---|---|
| Country/Territory | United States |
| City | Phoenix |
| Period | 10/20/24 → 10/24/24 |
Funding
This manuscript has been authored by UT-Battelle LLC under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doepublic-access-plan).
Keywords
- Wound Rotor Synchronous Motors (WRSM)
- field excitation
- rotary transformer
- wireless power transfer
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