Closed-loop torque feedback for a universal field-oriented contr

Details Closed-loop torque feedback for a universal field-oriented contr Closed-loop torque feedback for a universal field-oriented contr

1991-10-02

1992-11-24

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318803, 318805, H02D 540

Patent

active

051665930

ABSTRACT:
A torque feedback system is employed in a universal field-oriented (UFO) controller to tune a torque-producing current command and a slip frequency command in order to achieve robust torque control of an induction machine even in the event of current regulator errors and during transitions between pulse width modulated (PWM) and square wave modes of operation.

REFERENCES:
patent: 4023083 (1977-05-01), Plunkett
patent: 4310791 (1982-01-01), Akamatsu
patent: 4418308 (1983-11-01), Bose
patent: 4453116 (1984-06-01), Bose
patent: 4707651 (1987-11-01), Schauder
patent: 4885518 (1989-12-01), Schauder
patent: 4968925 (1990-11-01), De Doncker

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