Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Hiroto Takei

Hidetoshi Ikeda

Takashi Isoda

Yuji Igarashi

Kei Terada

Yoshihiro Marushita

A motor control device that controls motion of a control target including a motor and a vibratable element includes a generating unit configured to generate, according to state information representing a state of the control target related to a vibration characteristic of the control target, a first parameter representing the vibration characteristic of the control target, a first calculating unit configured to calculate a second parameter corresponding to a temporal change amount of the first parameter generated by the generating unit, a second calculating unit configured to calculate, using a motion target value, the first parameter, and the second parameter, model torque such that the control target does not excite vibration, and a developing unit configured to develop, according to the model torque calculated by the second calculating unit, a torque command such that the motion of the control target follows the motion target value.

Motor control device

An accurate load position control is made possible even when rigidity of a load drive system using a motor is relatively low. Load position signal xis a present-position measurement value of a load, and after compensation in response to a phase delay thereof has been performed by a stability compensation circuit, the high-frequency portion thereof is taken as a control-target position signal xby replacing, in a position-signal combination circuit, a motor position signal xm as a present-position measurement value of a motor, and then the control-target position signal xis fed back to a position control circuit. Thereby, a torque command signal indicating a torque target value for driving the load is outputted.

Machine position control device

Growing community of inventors

Tokyo, Japan

Hiroto Takei