Apparatus for controlling a PWM inverter-permanent magnet synchr

Details Apparatus for controlling a PWM inverter-permanent magnet synchr Apparatus for controlling a PWM inverter-permanent magnet synchr

1981-05-12

1982-11-30

Smith, Jr., David

Electricity: motive power systems

Synchronous motor systems

Armature winding circuits

318696, 318808, H02P 540

Patent

active

043617913

ABSTRACT:
Apparatus for controlling a permanent magnet AC synchronous motor supplied by a forced commutated inverter that does not use a mechanical shaft position sensor. A control loop regulates an inverter frequency and maintains inverter synchronism with the motor using electrical angle feedback signals developed from measured flux signals that have been phase shifted.

REFERENCES:
patent: 4028600 (1977-06-01), Blaschke et al.
patent: 4134055 (1979-01-01), Akamatsu
patent: 4282473 (1981-08-01), Dreiseitl et al.
Plunkett, A. B., "A Current Controlled PWM Transistor Drive" IAS Conference, Oct. 1979.

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