Multi-basis wavenet-based stator resistance identification in dtc induction motor systems

الملخص EN

The performance of direct torque controlled (DTC) induction motor system is greatly affected by the change of the motor stator resistance especially when the motor runs at low speeds.

A new architecture of multi-basis wave net-based model is proposed and implemented for stator resistance identification.

Such multi-basis model utilizes multi-set daughter wavelets.

By means of enough training of samples, the descent gradient algorithm is used to fulfill both system structure and parameters initialization, and the stator resistance is then acquired online with the operation of the system.

The simulation results were carried out using Matlab / Simulink library and compared with those obtained from classical stator resistance identification method based on PI control and from another recent wave net-based method.

The simulation results show that the proposed method can improve the system performance.