A leakage magnetic field shielding device comprises: a leakage magnetic field determining unit for determining phase and magnitude of a leakage magnetic field based on information obtained from a power supply device and a current collector device; a shielding current controller for determining a shielding current based on the phase and magnitude of the leakage magnetic field and supplying the determined shielding current to the leakage magnetic field shielding device; and a shielding unit for shielding the leakage magnetic field by generating a shielding magnetic field in accordance with the supply of the shielding current. The shielding unit has a multiple resonance characteristic depending on an arrangement of capacitors and coils and is disposed to surround the power supply device or the current collector device. The shielding magnetic field has resonance frequencies canceling magnetic fields corresponding to fundamental frequency and multiple frequency of the leakage magnetic field.
LEAKAGE MAGNETIC FIELD SHIELDING DEVICE AND WIRELESS POWER TRANSMISSION SYSTEM INCLUDING THE SAME
VORRICHTUNG ZUM ABSCHIRMEN EINES STREUMAGNETFELDES UND SELBIGE ENTHALTENDES DRAHTLOSES ENERGIEÜBERTRAGUNGSSYSTEM
DISPOSITIF DE BLINDAGE DE FUITE DE CHAMP MAGNÉTIQUE ET SYSTÈME DE TRANSMISSION D'ÉNERGIE SANS FIL COMPRENANT CELUI-CI
2020-12-30
Patent
Elektronische Ressource
Englisch
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01F MAGNETS , Magnete / H05K PRINTED CIRCUITS , Gedruckte Schaltungen |
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