Method and control system for controlling a brushless electric motor

摘要

The driving method involves converting the pulsating direct current (DC) voltage using the step-up chopper (18) into the DC link voltage. The pulsating DC voltage is applied at a pulse duty ratio regulated on the basis of the respective instantaneous DC link voltage to an inductor (L). The DC link voltage is added up via the free-wheeling diode (D) and DC link capacitor downstream of the inductor. The stray inductances of the motor winding heads present in the motor (2) are used as the inductor for the step-up chopper. An independent claim is included for a control system.