A Magnetization Curve Based Stator Resistance and Fuzzy Rotor Resistance Adaptation Technique Suitable for Speed Sensorless Field-oriented Control of Induction Machine

作者：Chatterjee Debashis^*

来源：Electric Power Components and Systems, 2012, 40(16): 1789-1807.

DOI：10.1080/15325008.2012.722583

• rotor flux
• speed sensorless vector control
• speed estimator
• stator resistance estimator
• rotor resistance
• fuzzy logic

Speed sensorless field-oriented control schemes for induction machines are widely used in modern industries. The parameter variation problem at different operating conditions is the major difficulty for such a scheme. In this article, a model-based technique is developed utilizing the magnetization curve of the machine to estimate simultaneously the stator resistance and magnetizing inductance. In the proposed technique, the stator current axis is taken as the orientation of the d-axis. The estimated stator resistance is independent of rotor speed and, hence is applicable for speed sensorless schemes. A correct estimation of speed also requires accurate knowledge of rotor resistance for such drives. In the proposed scheme, the rotor resistance variation is also tracked through a fuzzy logic based estimator depending on the stator resistance variation and other input variables. Simulations based on this technique are shown, which are also verified by suitable experimental results.

• 出版日期2012