Implementation of a DSP based real-time estimator of induction motors rotor time constant

被引：26

作者：

Ba-Razzouk, A ^{[1
]}

Chériti, A ^{[1
]}

Sicard, P ^{[1
]}

机构：

[1] Univ Quebec Trois Rivieres, Chaire Rech Hydro Quebec Puissance & Energie Elec, CPEE, Trois Rivieres, PQ G9A 5H7, Canada

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2002年 / 17卷 / 04期

关键词：

adaptive control real-time; constant estimation; digital signal processor; field oriented control; induction motors; rotor time constant estimation;

D O I：

10.1109/TPEL.2002.800963

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Implementation of ac drives insensitive to parameter variations is an important need in the field of high performance drives. For drives controlled by the indirect rotor flux oriented control method (IRFOC), the rotor time constant (tau(r) = L-r/R-r) exerts a dominant role in the loss of dynamic performance and its variation results in an undesirable coupling between flux and torque of the machine. This paper presents a new scheme for on-line estimation of rotor time constant using dq representation of the model in the stationary reference frame and measurements of accessible motor variables only (voltages, currents and speed). The estimator is tested by simulation in the MATLAB/SIMULINK environment and validated experimentally on a 1/4; hp squirrel cage motor and a 1/4; hp wound rotor motor with implementation on a TMS320C31 digital signal processor.

引用

页码：534 / 542

页数：9

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