Compensation of Dead-Time Effect of Speed Sensorless Vector Control System

被引：0

作者：

夏超英 ^{[1
]}

张靖 ^{[1
]}

机构：

[1] School of Electrical Engineering and Automation,Tianjin University

来源：

Transactions of Tianjin University | 2011年 / 17卷 / 05期

关键词：

induction motor; speed sensorless; vector control; DSP; compensation; dead-time; field orientation;

D O I：

暂无

中图分类号：

TP212 [发送器（变换器）、传感器]; TP273 [自动控制、自动控制系统];

学科分类号：

080201 ; 080202 ; 0835 ;

摘要：

The key of speed sensorless vector control system lies in the accurate orientation of magnetic field. In some field-oriented algorithms, the integrator of observers and the dead-time effect bring in system errors during the estimation of field position. In this paper, a saturated feedback integrator is used, and the dead-time effect is compen-sated by current positive feedback. Experiments were carried out on the hardware platform of MCK2407, with chip TMS320LF2407 from TI Company. The results show that the proposed method is simple and effective, and the accuracy of field position is improved.

引用

页码：351 / 355

页数：5

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