Adaptive backstepping control of an induction motor under time-varying load torque and rotor resistance uncertainty

被引：5

作者：

Ebrahim, Arbin ^{[1
]}

Murphy, Gregory ^{[1
]}

机构：

[1] Tuskegee Univ, Dept Elect & Comp Engn, Tuskegee, AL 36088 USA

来源：

INTERNATIONAL JOURNAL OF AUTOMATION AND CONTROL | 2008年 / 2卷 / 04期

关键词：

nonliner control; adaptive control; backstepping control; time-varying load torque; rotor resistance uncertainty; induction motors; field orientation; feedback control; rotor fluxes; tracking control;

D O I：

10.1504/IJAAC.2008.022893

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A new global adaptive controller is designed for induction motor speed control based on measurements of speed and stator current. The designed partial state feedback controller is singularity free, and guarantees asymptotic tracking of smooth reference trajectories for the speed of the motor under time-varying load torque and rotor resistance uncertainty, for any initial condition. The new control algorithm generates estimates for unknowntime-varying load torque, rotor resistance and unmeasured state variables (rotor fluxes) which asymptotically tracks and converges to their true values. The rotor flux modulus asymptotically tracks a desired reference signal which allows the motor to operate within its specifications. The control strategy yields decoupled rotor speed and rotor flux amplitude tracking control goals which allows the selection of an appropriate flux modulus for the rotor to maximise efficiency.

引用

页码：401 / 417

页数：17

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