A least squares induction motor parameters identification based on three level system

In recent years, with parameter self-tuning of the drive is concerned by national experts and scholars, which has become the focus of research. Because the induction motor has a strong coupling, nonlinear, operating parameters and other significant characteristics change, many scholars do a lot of research on the induction motor parameters identification, the parameters identification theory, many of the results of modern control theory are applied directly to vector control systems to develop into a high-precision vector converter. This article describes an experiment based on single-phase improved methods, the least square off-line identification, only one experiment can measure the motor parameters. According to the simulation results , we obtain a satisfactory result.