摘要
为了减小永磁同步电机传统直接转矩控制中过大的转矩和磁链脉动,提出了应用于永磁同步电机直接转矩控制的新型转矩和磁链区域电压矢量表。根据电机模型,推导出在每个区域内电压矢量的预测控制角,实现转矩和磁链的预测控制。实验结果表明:该方法与传统直接转矩控制相比,可维持逆变器开关频率的恒定,减小稳态转矩和磁链脉动,提高电机相电流正弦度,从而获得更好的控制性能,同时该方法还保留了传统直接转矩B ang-B ang控制的鲁棒性和快速的转矩响应。
A torque and flux area voltage vector table was developed for direct torque control of permanent magnet synchronous motors to avoid the large flux and torque ripples in traditional direct torque control. A predictive direct torque control algorithm based on the area voltage vector table reduces torque ripples and keeps the inverter＇s switch frequency constant to produce a high steady state performance. The method retains the robust properties and quick torque response of the conventional direct torque Bang-Bang control method. Experimental results show the effectiveness and advantages of this method.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第1期1-4,共4页
Journal of Tsinghua University(Science and Technology)
关键词
永磁同步电机
直接转矩控制
区域电压矢量表
预测控制
permanent magnet synchronous motors
direct torque control
area voltage vector table
predictive control
