Automatic load seeking control for a multitorque motor

Details Automatic load seeking control for a multitorque motor Automatic load seeking control for a multitorque motor

1980-06-24

1983-11-01

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Primary circuit control

318778, 417 12, 417 45, 417 53, H02P 132

Patent

active

044132182

ABSTRACT:
Method and apparatus for matching the power output of a multitorque motor with the torque requirement of a connected load device. The stator windings of the motor are automatically connected in various different configurations to provide the optimum motor torque demanded by a connected load device which imposes varying load conditions on the motor. A novel control circuitry is connected between the motor starter and the motor stators. The control measures the power drawn by the motor stators and selects the most optimum configuration thereof which meets the changing torque requirements of the connected load device. This selection of optimum stator winding configurations commensurate with torque demand operates the motor in the lowest possible torque mode, which is considered the best electrical and mechanical operation of the motor and connected load device.

REFERENCES:
patent: 2709775 (1955-05-01), Del Carlo
patent: 3624471 (1971-11-01), Japp et al.
patent: 4220440 (1981-09-01), Taylor et al.

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