Magnetic Field Mitigation by Multicoil Active Shielding in Electric Vehicles Equipped with Wireless Power Charging System
| Autor: | Francescaromana Maradei, Silvano Cruciani, Tommaso Campi, Mauro Feliziani |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
business.product_category Magnetic separation near field magnetic field 02 engineering and technology wireless power transfer (WPT) Shield Electric vehicle 0202 electrical engineering electronic engineering information engineering electromagnetic compatibility (EMC) Wireless power transfer Electrical and Electronic Engineering Carbon fiber reinforced polymer (CFRP) Settore ING-IND/31 business.industry shielding Electrical engineering 020206 networking & telecommunications Condensed Matter Physics Atomic and Molecular Physics and Optics Power (physics) Magnetic field electric vehicle (EV) Electromagnetic coil Electromagnetic shielding business |
| Popis: | A novel design of active coil shielding is proposed to reduce the magnetic field generated by the currents flowing into the coils of a wireless power transfer (WPT) system for charging the batteries of an electric vehicle (EV). The main idea is to divide the traditional active loop used to shield a source in two separate shielding coils so as not to adversely affect the WPT performance. This concept is applied to shield the WPT coils, and, therefore, in the proposed design, there are active coils placed on the ground parallel to the primary coil of the WPT and some others on board below the vehicle, planarly located with the secondary coil. The currents on the active coils are optimized in order to minimize the magnetic field in the most critical zone accessible from humans, i.e., region besides the EV and in the cabin. |
| Databáze: | OpenAIRE |
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