Switching strategies in direct torque control of doublestar induction motors

被引：0

作者：

Zaimeddinet, R. ^{[1
]}

Berkouk, E.M. ^{[2
]}

机构：

[1] Department of Electrical Engineering, University of M'hammed Bougara, Boumerdes, Algeria

[2] Liaboratoirc Commande des Processus, Ecole National Polytechnique, El Harache, Algeria

来源：

WSEAS Transactions on Circuits and Systems | 2006年 / 5卷 / 02期

关键词：

Vectors - Induction motors - Pulse width modulation - Vector spaces - Torque - Torque control - Electric inverters - Stars;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

AC drives based on direct torque control of double-star induction motors (DSIM) allow high dynamic performance to be obtained with very simple control schemes. Using a two-level voltage source inverter (VSI), the output voltages of PWM inverter can be represented by 8 space vectors in (d , q) plane. Then the amplitude and the rotating velocity of the flux vector can be controlled freely, both fast torque and optimal switching strategy can be obtained. In this paper a novel DTC scheme of double-star induction motors is proposed , the selection is based on the value of the stator flux and the torque. Compared to classical Field Oriented Control (FOC), which necessitates generally three feedback loops with P1 regulators, a current- regulated PWM converter, and two coordinate transformations, Direct Torque Control (DTC) uses only a couple of hysteresis comparators to perform both torque and flux dynamic control [11, The results obtained show superior performances over the FOC one without need to any mechanical sensor.

引用

页码：203 / 210

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