控制理论(社会学)
扭矩
转矩脉动
直接转矩控制
计算机科学
失速转矩
病媒控制
转矩电动机
同步电动机
阻尼转矩
转矩限制器
涟漪
磁铁
齿槽效应转矩
磁链
作者
Huangqiu Zhu,Xi Xiao,Yongdong Li
出处
期刊:IEEE Transactions on Industrial Electronics
[Institute of Electrical and Electronics Engineers]
日期:2012-02-01
卷期号:59 (2): 871-877
被引量:177
标识
DOI:10.1109/tie.2011.2157278
摘要
The direct torque control (DTC) technique of permanent-magnet synchronous motors (PMSMs) receives increasing attention due to its advantages in eliminating the current controllers and quicker dynamic response, compared with other motor control algorithms. However, high torque and stator flux ripples remain in the system when using DTC technologies. This means large stator voltage and current harmonic contents exist in the PM motors. Since the variation of motor electromagnetic torque is related to the voltages that are applied to the motor, by analyzing the relationships between stator flux, torque, and voltages, a PMSM torque predictive control scheme is proposed in this paper. In each digital signal processor cycle, the optimized voltage is utilized to reduce torque ripple, and the voltage vector angle is determined by the output of torque and flux hysteresis controllers. The proposed scheme is simulated and experimentally verified. Both simulation and experimental results have shown that low torque ripple and reduced stator current harmonics are achieved by using the proposed scheme.
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