| Sizing techniques is one of the most important preparing working procedures for the spinning and the speed and quality of sizing have great impact on the spinning production. The winding device of the sizing machine determines the sizing speed and quality.The winding character of the sizing machine's winding device is studied and the basic buildup and control theory of the tension control system is analyzed in this paper. The detection method of winding diameter is deduced and the control strategies of the Direct Torque controlled induction motor for the sizing spindle machine tools servo system are studied in detail.In this paper, a tension control system based on DSP is designed with the purpose to enhance the performance and buildup the robust of the system. This control system use AC induction motor as actuator and Direct Torque control as control strategy. This system includes TI's DSP as central control unit, M/T method as the speed detection method and winding diameter is calculated by software; using IPM as the power supply unit, the torque of the motor is direct controlled by transforming the on-off signal of the Direct Torque output to space vector voltage. An experimental research is conducted and the results verify the scheme above is valid and the constant tension control of winding machine is improved significantly. Due to the dynamic and nonlinear character of the winding tension control system, the fuzzy control theory is introduced and tension fuzzy controller is designed elementarily. The multi-variable fuzzy controller is designed by introducing fuzzy control to the Direct Torque control.Grounded on the work above, a winding tension control system based on acs6000 transducer is developed, and its performance is analyzed. This system adopt some advanced control strategies such as field bus,winder, which has accurate control capability and can realize the network and information of the factory.
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