三电平逆变器异步电机直接转矩控制

Direct torque control of the induction motor fed with a three-level inverter

介绍了在二极管钳位三电平逆变器异步电机调速系统中如何采用空间矢量调制与直接转矩控制相结合的控制方法。这种方法能够合理地利用三电平逆变器的开关状态,生成更加精确的电压矢量,降低转矩波动与磁链误差。仿真结果表明了这种方法的有效性。

How to apply direct torque control using space vector modulation on three-level neutral point clamped（NPC） inverter-fed induction motors control system was introduced, This strategy can make use of switching condition of three-level inverter, more precise voltage vector can be produced so that the torque ripple and the flux linkage error can be reduced. The simulation results ver/fy the correctness and feasibility of the strategy.