一种新颖的在低速时具有高性能的感应电机V/f控制法

A Novel Induction Motor V/f Control Method for High-performance at Low Speeds

提出了一种新颖的感应电机开环速度控制法 ,在任一频率下 ,它不但能使电机输出高的力矩 ,而且使稳态速度误差几乎等于零。该控制法是基于恒V/ f模式 ,仅需要使用廉价的电流传感器通过测量定子电流就能补偿定子电阻压降和转差频率。

This paper presents a novel open-loop speed control method for induction motors that provides high output torque and nearly zero steady-state speed error at any frequency. The control scheme is based on the popular constant v/f method using low-cost current sensors. Only stator current measurements are needed to compensate for both stator resistance drop and slip frequency. Simulation results show that the novel control method is effective.