METHOD FOR REDUCING NOISE OF AN ELECTRIC MOTOR

摘要

The invention relates to a method for reducing noise of a motor (1) fed by a converter (2). In order to reduce the generation of noise, the magnetic flux (Φ) in the motor (1) should be changed such that the product of the fundamental oscillation of the magnetic flux (Φ) and a harmonic oscillation of the magnetic flux (Φ) is reduced. Additionally or alternatively, the voltage (Us) at the motor (1) and/or the pulse frequency (fp) and/or the intermediate circuit voltage (UZK) should also be changed.