Tension identification of multi-motor synchronous system based on artificial neural network

Sensorless tension control of multi-motor synchronous system with closed tension loop is required in many fields. How to identify the knowledge of instantaneous magnitude of tension is key. In this paper the tension identification is managed on the base of stator currents and its previous values with neural network. According to the fundamental state equations of multi-motor system for tension control, the novel method of tension identification using neural network is presented A multi-layer feed-forward neural network (MFNN) is trained by Back Propagation Levenberger-Marquardt's method. Simulation and experiment results show that the system with tension identification via a neural network has better performance, and it can be used in many application fields.