Induction motor control system with speed and flux estimation

Details Induction motor control system with speed and flux estimation Induction motor control system with speed and flux estimation

1999-06-24

2000-01-11

Ro, Bentsu

Electricity: motive power systems

Induction motor systems

Primary circuit control

318799, 318801, 318811, H02P 763

Patent

active

060140062

ABSTRACT:
Method of controlling torque of a multi-phase induction motor (10) includes estimating rotor speed as a rational function of filtered stator current i.sub.s0 and voltage u.sub.0 and first and second order derivatives of the filtered stator current and first order derivative of the filtered stator voltage, estimating rotor flux from said estimated rotor speed, estimating rotor flux angle from said estimated rotor flux, and using the estimated rotor flux angle to control motor torque.

REFERENCES:
patent: 5162727 (1992-11-01), Hindsberg et al.
patent: 5463301 (1995-10-01), Kim
patent: 5510689 (1996-04-01), Lipo et al.
patent: 5541488 (1996-07-01), Bansal et al.
patent: 5559419 (1996-09-01), Jansen et al.
patent: 5565752 (1996-10-01), Jansen et al.
patent: 5729113 (1998-03-01), Jansen et al.
patent: 5818192 (1998-10-01), Nozari

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