Abstract
Coupling coefficient k of a transformer is a key parameter affecting the efficiency of a contactless energy transmission systems (CETS). Aiming to obtain higher k, smaller size and lighter weight for the contactless transformer, techniques for the improvement of core structure and coil arrangement are proposed in this paper. A new magnetic reluctance circuit is also proposed for the transformer. Based on magnetic flux coupling, magnetic reluctances are found for the calculation of k. A novel contactless transformer is fabricated for a 60W CETS. The k calculated is verified with experimental measurement to be very accurate. A contactless transformer with k of 0.6 and weight of 60g is achieved. Compared with our previous transformer having k of 0.53 and weight of 122g, the new transformer offers about 2.5% improvement in the maximum efficiency.
| Original language | English |
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| Title of host publication | 2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009 |
| Pages | 3218-3224 |
| Number of pages | 7 |
| DOIs | |
| Publication status | Published - 28 Dec 2009 |
| Event | 2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009 - San Jose, CA, United States Duration: 20 Sept 2009 → 24 Sept 2009 |
Conference
| Conference | 2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009 |
|---|---|
| Country/Territory | United States |
| City | San Jose, CA |
| Period | 20/09/09 → 24/09/09 |
Keywords
- Contactless transformer
- Coupling coefficient
- Magnetic reluctance circuit
- Optimization
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering