Research on Reducing Torque Ripple of DTC Fuzzy Logic-based

被引：1
作者：
Gao Sheng-wei [1 ,2 ]
Wang You-Hua [1 ]
Cai Yan [2 ]
Zhang Chuang [1 ]
机构：
[1] Hebei Univ Technol, Prov Minist, Joint Key Lab EF & EAR, Tianjin, Peoples R China
[2] Tianjin Polytechn Univ, Sch Elect Engn & Automat, Tianjin, Peoples R China
来源：
2ND IEEE INTERNATIONAL CONFERENCE ON ADVANCED COMPUTER CONTROL (ICACC 2010), VOL. 2 | 2010年
关键词：
fuzzy logic; torque hysteresis; amplitude adjustable; direct torque control; INDUCTION-MOTORS;
D O I：
10.1109/ICACC.2010.5486721
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The direct torque control (DTC) technique has been widely used as a control strategy for motor drive system. High torque ripple is a major problem when the motor is running at low speed in DTC system. By analyzing the causes of torque ripple, it is can be found that the change of the speed error signal is a good indicator to determine the situation of motor torque ripple. In this paper, a DTC strategy with a fuzzy logic controller has been proposed. The inputs of the fuzzy controller are the speed error signal and the change rate of current signal. The output is incremental value of the torque hysteresis amplitude. Dynamic adjustment of the torque hysteresis amplitude is the ultimate goal. The simulation results show that the DTC system with hysteresis amplitude adjustment fuzzy logic controller can reduce the pulsation of the motor torque and flux, and improve the performance of low-speed operating conditions.
引用
收藏
页码：631 / 634
页数：4
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