Method for controlling current for inverter, involves individually calibrating current measuring devices for correction of measurement errors, where current measuring devices are calibrated in operation of inverter in recurring manner

摘要

The method involves measuring the respective phase currents (i-1,i-2,i-3) at the outputs of an inverter (U) by the current measuring devices (A-1,A-2,A-3). A control unit is provided for controlling the phase currents that are supplied to the associated inverter. The recurrent correction of the measurement errors of the current measuring devices is carried out. The current measuring devices are calibrated individually for the correction of the measurement errors. The individual current measuring devices are calibrated in the operation of the inverter in a recurring manner. An independent claim is included for a device for controlling current for an inverter.