High speed flux feedback for tuning a universal field oriented c

Details High speed flux feedback for tuning a universal field oriented c High speed flux feedback for tuning a universal field oriented c

1991-10-02

1992-09-01

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Primary circuit control

318800, H02P 540

Patent

active

051442167

ABSTRACT:
The direct (d) and quadrature (q) components of flux, as sensed by flux sensors or determined from voltage and current measurements in a direct field orientation scheme, are processed rapidly and accurately to provide flux amplitude and angular position values for use by the vector rotator of a universal field-oriented (UFO) controller. Flux amplitude (linear or squared) is provided as feedback to tune the UFO controller for operation in direct and indirect field orientation modes and enables smooth transitions from one mode to the other.

REFERENCES:
patent: 4028600 (1977-06-01), Blaschke et al.
patent: 4724373 (1988-02-01), Lipo
patent: 4885520 (1989-12-01), Sugimoto et al.
patent: 4968925 (1990-11-01), De Doncker
De Doncker, Rik, "Synthesis and Digital Implementation of Adaptive Field Oriented Controllers for Induction Machines with Airgap Flux Control and Deep Bar Compensation", Ph.D. thesis, Katholieke Universiteit Leuven, Dec. 1986, pp. 164-166.

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