Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1993-12-21
1996-04-23
Cabeca, John W.
Electricity: motive power systems
Induction motor systems
Primary circuit control
318807, H02P 528
Patent
active
055106897
ABSTRACT:
Methods and apparatus are provided wherein air gap fundamental flux magnitude and relative position are determined from stator voltage third harmonic components and stator current in operating alternating current machines having a stator, a rotor and an air gap therebetween. Such determinations have various uses, such as for efficiency control.
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Lipo Thomas A.
Moreira Julio C.
Cabeca John W.
Wisconsin Alumni Research Foundation
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