A sensorless vector control system for induction motors using q-axis flux with stator resistance identification

被引：75

作者：

Tsuji, M ^{[1
]}

Chen, S ^{[1
]}

Izumi, K ^{[1
]}

Yamada, E ^{[1
]}

机构：

[1] Nagasaki Univ, Dept Elect & Elect Engn, Nagasaki 8528521, Japan

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2001年 / 48卷 / 01期

关键词：

adaptive observer; induction motor; sensorless vector control; speed estimation; stability analysis; stator resistance identification;

D O I：

10.1109/41.904579

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents a sensorless vector control system for general-purpose induction motors, which is based on the observer theory and the adaptive control theories. The proposed system includes a rotor speed estimator using a q-axis flux and stator resistance identifier using the d-axis flux. The advantages of the proposed system are simplicity and avoidance of problems caused by using only a voltage model. Since the mathematical model of this system is constructed in a synchronously rotating reference frame, a linear model is easily derived for analyzing the system stability, including the influence of the observer gain, motor operating state, and parameter variations. In order to obtain stable low-speed operation and speed control accuracy, an algorithm for compensating for the deadtime of the inverter and correcting the nonideal features of an insulated gate bipolar transistor was developed. The effectiveness of the proposed system has been verified by digital simulation and experimentation.

引用

页码：185 / 194

页数：10

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