Control system for an AC motor

Details Control system for an AC motor Control system for an AC motor

1984-11-01

1986-12-30

Smith, Jr., David

Electricity: motive power systems

Synchronous motor systems

Armature winding circuits

318809, H02P 540

Patent

active

046331581

ABSTRACT:
A control system for an AC motor to be driven by an inverter, wherein a control lead angle .beta. of the AC motor drive current is controlled based on the detection of an actual overlapped angle, a set overlapped angle, a detected motor speed, a detected magnitude of the acceleration-deceleration rate of motor speed, a detected amount of current from a power source and/or a detected magnitude of the change rate in the current from the power source.

REFERENCES:
patent: 3894277 (1975-07-01), Tachibana et al.
patent: 4264853 (1981-04-01), Morishita
patent: 4276504 (1981-06-01), Nagase et al.

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