Control device for commutatorless motor

Details Control device for commutatorless motor Control device for commutatorless motor

1978-12-20

1981-06-30

Rubinson, Gene Z.

Electricity: motive power systems

Synchronous motor systems

Armature winding circuits

318722, 318723, 318802, H02P 728

Patent

active

042765048

ABSTRACT:
A control device for a thyristor motor is disclosed by which the advance angle is switched at a predetermined slow rate of change in order to avoid an abrupt change in the motor torque. The thyristor motor comprises a thyristor frequency converter for a frequency conversion and a synchronous motor driven by the frequency converter, and in the thyristor motor the advance angle is switched at low and high speeds of the motor.

REFERENCES:
patent: 3832624 (1974-08-01), Gilmore et al.
patent: 3872364 (1975-03-01), Hubner
patent: 3894277 (1975-07-01), Tachibana et al.
patent: 4044284 (1977-08-01), Plunkett et al.
patent: 4051419 (1977-09-01), Takahashi
patent: 4125796 (1978-11-01), Nagase et al.

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