Analytical Approach to Determine Speed-torque Curve of Induction Motor from Manufacturer Data

摘要

Induction motors are widely used every production process today. Their torque-speed characteristics are the most important properties. This paper describes a simple and efficient analytical technique to determine speed-torque performance curve of induction motor from manufacturer data. The obtained speed-torque curve is verified against that derived from the conventional equivalent model where the motor's parameters are already known. A good agreement between the obtained speed-torque curves is clearly observed. The motor's performance torque curves derived with an aid of the analytical formula from the manufacturer catalog are also presented.