Method and apparatus for current rebalance in induction motor

Details Method and apparatus for current rebalance in induction motor Method and apparatus for current rebalance in induction motor

1994-04-12

1996-10-15

Martin, David S.

Electricity: motive power systems

Induction motor systems

Primary circuit control

H02P 528

Patent

active

055657532

ABSTRACT:
A method and apparatus to be used with a motor controller for determining if phase currents in a three phase AC motor are balanced. The phase angles between current zero crossing times for consecutive phase currents are compared to determine current balance and thyristor switches are employed to adjust phase angles and rebalance unbalanced currents.

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patent: 4862052 (1989-08-01), Unsworth et al.
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patent: 5153489 (1992-10-01), Unsworth et al.
patent: 5243268 (1993-09-01), Klatt
patent: 5367234 (1994-11-01), DiTucci

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