Control strategies of direct torque, control of induction motor applied to traction

被引：0
|
作者：
Qu, WL [1 ]
Yang, Y [1 ]
Feng, JH [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
来源：
ICEMS'2001: PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS, VOLS I AND II | 2001年
关键词：
control strategy; direct torque control; induction motor;
D O I：
暂无
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 control strategy of Direct Torque Control(DTC) system of induction motor fed with GTO voltage source inverter applied to railway traction is introduced. Because the switching frequency can not be high in the condition of high power GTO inverter applications, different control methods are adopted in different speed ranges: 1. When the speed is higher than the rated one, a weaken flux DTC is used; 2. When it is lower than 30% of the rated speed, a kind of indirect torque control is employed to reduce the ripple of electromagnetic torque. 3. If the speed is from 30% to 100% rated speed, the ordinary DTC with hexagon stator flux trace is applied to reduce switching frequency. Both simulations and experimental results are presented in this paper.
引用
收藏
页码：1226 / 1229
页数：4
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