A New Dead-time Compensation Method on Direct Torque Control System based on DSP

被引：0
|
作者：
Zhou, L. Q. [1 ]
机构：
[1] Huangshi Inst Technol, Sch Elect & Elect Informat Engn, Huangshi, Hubei Province, Peoples R China
来源：
ICIEA: 2009 4TH IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS, VOLS 1-6 | 2009年
关键词：
pulse width modulation; DTC; dead time compensation;
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：
In direct torque control, the voltage source inverter (VSI) was controlled based on Space-vector pulse width modulation (SVPWM). The SVPWM is an excellent control strategy, but the relation between reference voltage and actual output voltage is nonlinear due to the dead time effect and the voltage drop of power devices. The distortion of voltage invokes serious problems such as current waveform distortion and deterioration of the systems. An improved method which reduces the distortion of voltage and current in induction motor direct torque control (DTC) system is presented. It compensated three-phase voltages in terms of current directions. The method can be implemented with software without any extra hardware. The experiment results verify this method has a good compensation effect.
引用
收藏
页码：2350 / 2353
页数：4
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