Abstract
The series/series-parallel (S/SP) compensated contactless resonant converter has a desirable feature of being insensitive to variation of parameters including the transformer's coupling coefficient. However, the error resulting from the use of fundamental harmonic approximation is significant, thus complicating the design procedure and affecting the effectiveness of the control. In this paper a steady-state analysis of the S/SP converter is presented. A generalized equivalent circuit of the S/SP resonant tank is derived, and the cause of the waveform distortion is revealed. Then, more accurate expressions for the key variables of the resonant tank and the output voltage gain are given. Finally, a 1.5 kW contactless resonant converter with S/SP compensation is constructed. Experimental results are in good agreement with the analytical results.
| Original language | English |
|---|---|
| Article number | 7023173 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 2014-May |
| DOIs | |
| Publication status | Published - May 2014 |
| Externally published | Yes |
| Event | 2014 IEEE 79th Vehicular Technology Conference (VTC2014-Spring) - Seoul, Korea, Republic of Duration: 18 May 2014 → 21 May 2014 |
Research Keywords
- Contactless power transmission
- Output voltage gain analysis
- Resonant power converter
- S/SP compensation
- Steady-state analysis