Patent · US Active

Motor control apparatus which limits torque command according to input current or power

US8884571B2 · kind B2 · utility

5Cited by
2References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 30, 2012
Grant dateNov 11, 2014
Priority date—
Expiry dateNov 30, 2032

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05B2219/42289
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A motor control apparatus includes, a converter which converts input AC to DC for output, an inverter which converts the DC output of the converter to provide an AC output for driving a motor, and an inverter control part for controlling the same, and a numerical control part which outputs a motor operation command for commanding the operation of the motor, and wherein when AC current or power input to the converter lies outside a predetermined range, the inverter control part controls the AC output of the inverter so that the motor is operated in accordance with a limited torque command produced by limiting a torque command originally specified in the motor operation command.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.