Motor control device

A motor control and motor technology, applied in the direction of program control, damping device, control system, etc., can solve problems such as insufficient vibration suppression
CN103270692AActive Publication Date: 2013-08-28MITSUBISHI ELECTRIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MITSUBISHI ELECTRIC CORP
Publication Date
2013-08-28

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Abstract

A motor control device controls operation of a control object that has a motor and an oscillatable element. The motor control device comprises: a generation unit that generates, in accordance with status information that relates to the oscillation characteristics of the control object and that indicates the status of the control object, a first parameter that indicates the oscillation characteristics of the control object; a first calculation unit that calculates a second parameter in accordance with the time change amount of the first parameter generated by the generation unit; a second calculation unit that calculates a model torque using an operation target value, the first parameter, and the second parameter so that the control subject does not excite oscillation; and an issuance unit that causes a torque instruction to be issued in accordance with the model torque computed by the second calculation unit.
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Description

technical field

[0001] The present invention relates to motor control devices. Background technique

[0002] In an industrial machine with low rigidity, if the positioning drive of the industrial machine is performed by a motor, residual vibration may occur at the time of stop due to machine resonance or the like. In order to suppress such residual vibration, the motor control device that operates the industrial machinery through the motor calculates the control signal based on the operation target value so that the signal component of the vibration frequency (resonance frequency) of the industrial machinery is reduced, and performs industrial Damping control with mechanical devices. In order to perform this damping control, the motor control device needs damping parameters for damping control corresponding to the vibration frequency of the control system including the industrial machinery. For an industrial machine whose vibration frequency does not change during operatio...

Claims

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