status mode input select switch

In view of the defects existed in traditional direct torque control method,the corresponding measures for optimizing and improving are summarized in aspects of torque ripple,flux-linkage observation,selection of switching state,harmonic suppression and improvement of control performance.

针对传统直接转矩控制方法的不足,在转矩脉动、磁链观测、开关状态选择、谐波抑制及控制性能改善等方面提出优化或改进措施,以有助于实现更优的设计方法。