slip-ring voltage

Slip frequency control and adjustable performance for the induction motors are also studied in the thesis. ( 2) Harmonic components of voltage source inverter are analyzed, and electromagnetic relationship of these harmonics for asynchronous traction motors is studied.

分析了电压型逆变器电源谐波成分和谐波在牵引电动机内的电磁关系，并对牵引电动机的谐波等值电路进行了分析，包括谐波电压在电机中产生的电流、损耗和转矩等。

A novel resistance estimation method is presented for induction motor, and is used in voltage controlled type slip frequency vector control system. Computer simulations demonstrate the effectiveness of the presented method.

给出了一种异步电动机定、转子电阻参数在线实时估计方法，并将其应用于电压控制型转差频率矢量控制系统，计算机仿真结果表明该方法具有较好的参数估计效果。

Using slip frequency control method and SPWM, we give a general design scheme of the slip frequency variable voltage variable frequency control system.

运用转差频率控制方式和正弦脉宽调制算法，提出转差频率变压变频调速系统的总体设计方案。