DEVICE AND METHOD FOR GENERATING A PARTIALLY SYNTHESIZED SIGNAL WITH VERY GOOD DYNAMIC QUALITY FOR THE ACCELERATION OF A ROTOR IN AN ELECTRICAL DRIVE MECHANISM

摘要

A system and method for controlling the acceleration of an armature of an electric drive by generating a high quality acceleration error correction signal z, the system comprising an accelerometer for obtaining a measured armature acceleration value bm, which is equal to the product of a true armature acceleration alpha, and an acceleration measurement transfer function Fg(p), and means for obtaining a measured acceleration signal, bEm, which is generated from a measured substitute acceleration signal bE.bm and bEm are scaled such that the relationship of bm=alpha.Fg(p)=bEm.Fg(p) is satisfied. The measured armature acceleration signal bm is filtered with a first filter transfer function of FT(p), and the measured acceleration signal bEm is filtered with a second filter transfer function of FH(p). The first and second filter outputs are combined to form the partly synthesized high quality acceleration error correction signal z=bm.FT(p)+bEm.FH(p).