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US 7,733,046 B2Granted
Motor controller and control method thereof
AssigneeKabushiki Kaisha Yaskawa Denki
InventorsEri Yamanaka, Nobuhiro Umeda, Ken-ichi Murata
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AssigneeKabushiki Kaisha Yaskawa Denki
InventorsEri Yamanaka, Nobuhiro Umeda, Ken-ichi Murata
Estimating the term…
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.
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 comprising:
A motor control method of 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 control method comprising steps of:
Dependencies are inferred from the claim text.