Electric Motor Control Device

摘要

An electric motor control device is capable of reducing vibration in a speed fluctuation range at a high frequency. The electric motor control device includes a target rotation speed setting unit that sets the target rotation speed of an electric motor, a rotation speed estimation unit that calculates an estimated rotation speed of the electric motor, and a drive command signal generation unit that generates a drive command signal for the electric motor so as to eliminate a rotation speed difference between the target rotation speed and the estimated rotation speed. The rotation speed estimation unit includes an error calculation unit that calculates an error related to rotation of the electric motor and an estimated corrected rotation speed calculation unit that calculates an estimated corrected rotation speed by taking the error as input and correcting the estimated rotation speed.

主权项

1. An electric motor control device comprising:
a target rotation speed setting unit configured to set a target rotation speed of an electric motor; a rotation speed estimation unit configured to calculate an estimated rotation speed of the electric motor; and a drive command signal generation unit configured to generate a drive command signal for the electric motor so as to eliminate a rotation speed difference between the target rotation speed and the estimated rotation speed, the rotation speed estimation unit including:
an error calculation unit configured to calculate an error related to rotation of the electric motor; andan estimated corrected rotation speed calculation unit configured to calculate an estimated corrected rotation speed by taking the error calculated by the error calculation unit as input and correcting the estimated rotation speed.