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 b_m, which is equal to the product of a true armature acceleration &agr;, and an acceleration measurement transfer function F_g(p), and means for obtaining a measured acceleration signal, b_Em, which is generated from a measured substitute acceleration signal b_E·b_m and b_Em are scaled such that the relationship of b_m=&agr;·F_g(p)=b_Em·F_g(p) is satisfied. The measured armature acceleration signal b_m is filtered with a first filter transfer function of F_T(p), and the measured acceleration signal b_Em is filtered with a second filter transfer function of F_H(p). The first and second filter outputs are combined to form the partly synthesized high quality acceleration error correction signal z=b_m·F_T(p)+b_Em·F_H(p).