Motor controller and control method thereof

Details Motor controller and control method thereof Motor controller and control method thereof

2006-01-06

2010-06-08

Masih, Karen (Department: 2837)

Electricity: motive power systems

Constant motor current, load and/or torque control

C318S561000, C318S437000, C318S434000

Reexamination Certificate

active

07733046

ABSTRACT:
A motor controller including a position control section that generates a speed command based on a position command and a motor position, a speed control section that generates a torque command based on the speed command and a motor speed, and a motor driving section that generates a motor current based on the torque command. The motor controller has a speed feed forward command generating section that generates a speed feed forward command by differentiating the position command. A model control section generates a model torque command based on the speed feed forward command and a model speed. An inertia identifying section identifies inertia based on the ratio of an integrated value of a motor torque command obtained by time-integrating the motor torque command in a prescribed section to an integrated value of the model torque command obtained by time-integrating the model torque command in a prescribed section, from a prescribed position command.

REFERENCES:
patent: 2007/0210731 (2007-09-01), Yoshiura et al.
patent: 2000-172341 (2000-06-01), None
patent: 2001-218488 (2001-08-01), None
patent: 1996/037039 (1996-11-01), None

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