Determining system parameters of a contactless electrical energy transfer system

摘要

Determining parameters of a contactless electrical energy transfer (CEET) system (10) comprise inductively coupling a first coil circuit (12) to a second coil circuit (22), shorting terminals (223) of the second coil circuit, and applying an alternating voltage to terminals (123) of the first coil circuit. The alternating voltage induces a first current in the first coil circuit and a second current in the second coil circuit. Next, the terminals (123) of the first coil circuit are shorted while the second current is flowing, followed by measuring the first current and/or the second current and determining the parameters on the basis of the measured current.