A method of compensating for magnetic flux resulting from variance from a first electric machine to a second electric machine. A magnetic flux change for the first machine is calculated as a function of a flux difference between the first machine and the second machine. Operation of the first machine is controlled using the magnetic flux change.

A drive system for a working machine with a working device which can be unloaded for starting, wherein the drive system comprises at least one main motor, which is designed as an electric machine, in particular as an asynchronous motor, and a motor shaft; an auxiliary motor, which is designed as an electric machine, in particular as an asynchronous motor; and a starting device for starting the auxiliary motor. The auxiliary motor is configured to start and/or accelerate the working machine, in particular up to a synchronous speed of the main motor.

A drive system for a working machine with a working device which can be unloaded for starting, wherein the drive system comprises at least one main motor, which is designed as an electric machine, in particular as an asynchronous motor, and a motor shaft; an auxiliary motor, which is designed as an electric machine, in particular as an asynchronous motor; and a starting device for starting the auxiliary motor. The auxiliary motor is configured to start and/or accelerate the working machine, in particular up to a synchronous speed of the main motor.