Torque Estimation for Speed Sensorless Induction Motor Control With Virtual Voltage Injection at Extremely Low Speeds

Wei Sun · Sihan Liu · Dawei Li · Ronghai Qu · IEEE Transactions on Industrial Electronics · 2025年10月 · Vol.73

The sensorless control of induction motors suffers from issues such as poor stability and insufficient load capacity in the low synchronous speed region. Traditional signal injection methods are not suitable for induction motors with weak anisotropy....