| 摘要 |
The invention relates to a method and an apparatus for protection time compensation in an inverter for supplying an electric motor, in particular for a three-phase inverter with pulse-width-modulation driving. Furthermore, the invention relates to driving for an electric motor. In the method for protection time compensation in an inverter for supplying phase voltages to an electric motor (6) having a rotor, in particular for a three-phase inverter with pulse-width-modulation driving (8), a fault (Vs) in a motor torque of the electric motor (6), which fault is brought about by a protection time (T A ) , is calculated taking into consideration a sampling time of the driving (8), wherein a voltage distortion (V q ) considered in the dq system is minimized depending on the position of the rotor in order to provide compensation of the phase voltages between two sampling times. |
