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Patent Searching and Data


Title:
METHOD AND UNIT FOR CONTROLLING MOTOR
Document Type and Number:
Japanese Patent JP2011176906
Kind Code:
A
Abstract:

To provide a fixed-position stop control system capable of achieving positioning of a motor at high speed while decelerating the motor with as large a torque as possible and while achieving a reduction in overshoot during positioning.

After the rotational speed of a rotor of a motor M is reduced to an orientation speed, a control section 7 gives a deviation between a speed designated by a position loop speed command vc and a squared speed v2 to a speed controller 4. A torque addition command ac determined by the control section 7 is added to a torque command tc output from the speed controller 4 to obtain an added torque command atc. The added torque command atc is given to a torque controller 6. Then, the position and speed of the rotor are controlled according to a sliding curve defined by using physical parameters used for the orientation control so as to stop the rotor at a target position. Thus, the sliding mode control is used to adjust the input to the torque controller.


Inventors:
IDE YUJI
Application Number:
JP2010037128A
Publication Date:
September 08, 2011
Filing Date:
February 23, 2010
Export Citation:
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Assignee:
SANYO ELECTRIC CO
International Classes:
H02P3/06; G05B11/36; G05B13/00; H02P29/00
Attorney, Agent or Firm:
西浦 ▲嗣▼晴