METHOD FOR DETERMINING CURRENT IN A POLYPHASE MACHINE

摘要

The invention relates to a method for determining current in a polyphase machine connected to a DC voltage source. Said polyphase machine has an intermediate circuit provided with an intermediate circuit capacitor and, for each phase, a high-side switch and a low-side switch. The voltage profile on the intermediate circuit capacitor is measured. The measured voltage profile is used to determine the current from the DC voltage source and/or one or more phase currents.