Application of Neural Network Structure in Voltage Vector Selection of Direct Torque Control Induction Motor

摘要

Direct Torque Control (DTC) of Induction Motor drive has quick torque response without complex orientation transformation and inner loop current control. Although DTC has some drawbacks, such as the torque and flux ripple. The important point in DTC is the right selection of the stator voltage vector. This paper presents simple structured neural network for stator voltage vector selection for induction motors using direct torque control (DTC) method. The Gradient Descent with momentum back-propagation technique has been used to train the neural network. The simple structure network facilitates a short training and processing times. The twelve sector stator voltage vector selector based DTC scheme compared with the proposed scheme and the results are validated through simulation.