Abstract
This paper conducts research on the long range and small receiver magnetic resonance coupling wireless power transmission system and presents the problem that the system's performance parameters-transfer power and transfer efficiency is always very low. Using the three coils structure, by analyzing the equivalent circuit, the means that can improve the transfer power and transfer efficiency is obtained. Then, based on the relationship between the transfer power, transfer efficiency and the transfer distance, loads' resistance and serial or parallel connection modes, the expression of efficiency and power was obtained. Simulated by the Pspice software, the results show that the three coils structure that use in the paper can significantly improve the transfer power and transfer efficiency; different resistance loads with suitable connection mode help ensure the system's performance. With the designed long range and low power wireless power transmission system, the correctness of the aforementioned analyses is verified through the experimental results.
| Original language | English |
|---|---|
| Pages (from-to) | 209-214 |
| Number of pages | 6 |
| Journal | Diangong Jishu Xuebao/Transactions of China Electrotechnical Society |
| Volume | 30 |
| State | Published - 1 Sep 2015 |
Keywords
- Long range
- Low power
- Performance optimization
- Small receiver
- Wireless power transfer
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