Controller for AC motor

Details Controller for AC motor Controller for AC motor

1998-09-04

1999-10-19

Ip, Paul

Electricity: motive power systems

Induction motor systems

Primary circuit control

318800, 318803, 318807, H02P 540

Patent

active

059694998

ABSTRACT:
A speed controller for a three phase induction motor using sliding mode control to generate estimates of stator current and rotor flux to control motor speed. The controller receives only the actual operating speed and the desired operating speed as input signals. The controller establishes linked non-linear hyperplaces containing the operating points of each phase and coerces the operating points to move along the line of intersection. A change in operating conditions causes a change in the power supplied to the phase terminals.

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patent: 5689169 (1997-11-01), Kerkman et al.
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patent: 5694017 (1997-12-01), Lansberry
patent: 5729113 (1998-03-01), Jansen et al.
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patent: 5767637 (1998-06-01), Lansberry
patent: 5811957 (1998-09-01), Bose et al.
patent: 5861728 (1999-01-01), Tazawa et al.

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