In this paper it has been investigated if there is a possibility to reduce the switching frequency for a two-level inverter by improving the direct torque control (DTC) algorithm by adding a non-switching condition when a new sector is entered. It is believed that the DTC switching table can be improved by adding a non-switching condition when sector change occurs. This will reduce the number of switching actions by up to 12 per electrical rotation without interfering with the electrical machine performance.

中文翻译：

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使用 DTC 消除扇区变化引起的矢量变化

在本文中，研究了是否有可能通过在进入新扇区时添加非开关条件来改进直接转矩控制 (DTC) 算法来降低两电平逆变器的开关频率。相信可以通过在扇区发生变化时添加非切换条件来改进DTC切换表。这将在不影响电机性能的情况下，每次电气旋转最多可减少 12 次开关动作。