VSCF start system current estimator

Details VSCF start system current estimator VSCF start system current estimator

1988-12-05

1990-10-30

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Primary circuit control

318806, 318723, H02P 540

Patent

active

049671324

ABSTRACT:
The problem of excess size and weight resulting from the use of current sensors in a VSCF start system is solved by a motor control system which utilizes a current estimator to develop a current feedback value. The current estimator is coupled to a rotor position detector and an input power detector to develop a signal representing the estimated current drawn by the motor.

REFERENCES:
patent: 4276505 (1981-06-01), Bose
patent: 4450398 (1984-05-01), Bose
patent: 4525660 (1985-06-01), Katto
patent: 4689543 (1987-08-01), Hucker
patent: 4707618 (1987-11-01), Haas
patent: 4818890 (1989-04-01), Mose et al.

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