Method and control system for controlling a brushless electric motor

摘要

The method involves controlling an alternating current converter (6) for adjusting motor speed by a pulse width modulation-controller (8) such that quasi-sinusoidal motor currents are produced. An intermediate circuit-direct current voltage (Uz) is related with a periodic disturbance variable that is periodically determined by dynamic optimized disturbance variable compensation such that a compensation variable (K) is produced. The controller is influenced with respect to clock ratio of the controller by the compensation variable that is dynamically corrected by a control circuit. An independent claim is also included for a system for controlling a brushless, electronically commutated triple-stranded electric motor.