Abstract
In the practical application of wireless power transmission (WPT), multiple WPT systems which are close in distance, can work simultaneously as a normal application scenario. However, proximity coupling caused by mutual coupling of leakage magnetic field from adjacent systems brings disturbances to resonant parameters. These parameter fluctuations will reduce the system transmission efficiency. In order to solve this problem, a resonant shielding coil is designed to eliminate proximity coupling between systems. Its working principle and effect on improving the proximity coupling and transmission efficiency are analyzed. Both simulation and experiment are conducted to compare how the shape and number of turns of shielding coil affect the effectiveness of shielding. Then the shielding coil structure is optimized. The results show that the square-shape shielding coil has a good performance in reducing the parameter disturbances caused by proximity coupling, which helps system tune for improving the transmission efficiency of WPT system with proximity coupling.
| Translated title of the contribution | Efficient Shielding Design and Optimization of Wireless Power Transfer System with Proximity Coupling |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 163-169 |
| Number of pages | 7 |
| Journal | Dianli Xitong Zidonghua/Automation of Electric Power Systems |
| Volume | 43 |
| Issue number | 21 |
| DOIs | |
| State | Published - 10 Nov 2019 |
| Externally published | Yes |
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