Reducing torsional oscillation and performance improvement of industrial drives using PI along with additional feedbacks

Torsional oscillations in electrical drive systems with elastic shafts are a well known problem. In the industrial drive systems, a shaft torsional vibration or oscillation is often generated when a motor and a load are connected with a flexible shaft. Large inertias of the motor and load side and a long shaft create an elastic system. The motor speed is different from the load side and the shaft undergoes large torsional torque. In order to damp the torsional vibration effectively, the application of various feedbacks are necessary. The control structures of electrical drives working in the industry are usually based on linear PI controllers. This paper presents the design, analysis and comparison of the conventional PI-control to control structure using PI supported by various feedbacks for performance improvement of the Industrial drives system. Key words:

[1]  T. Orłowska-Kowalska,et al.  Extended Kalman filters in the control structure of two-mass drive system , 2006 .

[2]  Yoichi Hori,et al.  Vibration suppression in 2- and 3-mass system based on the feedback of imperfect derivative of the estimated torsional torque , 1996, IEEE Trans. Ind. Electron..

[3]  Ruicheng Zhang,et al.  Torsional Vibration Suppression Control in the Main Drive System of Rolling Mill by State Feedback Speed Controller Based on Extended State Observer , 2007, 2007 IEEE International Conference on Control and Automation.

[4]  G. Zhang.  Comparison of control schemes for two-inertia system , 1999, Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475).

[5]  K. Kubo,et al.  Analysis and compensation of speed drive systems with torsional loads , 1993, Conference Record of the Power Conversion Conference - Yokohama 1993.

[6]  M.A. Valenzuela,et al.  Evaluation of torsional oscillations in paper machine sections , 2004, IEEE Transactions on Industry Applications.

[7]  Seung-Ki Sul,et al.  Kalman filter and LQ based speed controller for torsional vibration suppression in a 2-mass motor drive system , 1995, IEEE Trans. Ind. Electron..

[8]  Junji Furusho,et al.  Speed control of two-inertia system by PI/PID control , 1999, Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475).

[9]  Christopher M. Bingham,et al.  High-Performance Control of Dual-Inertia Servo-Drive Systems Using Low-Cost Integrated SAW Torque Transducers , 2006, IEEE Transactions on Industrial Electronics.

[10]  Teresa Orlowska-Kowalska,et al.  Performance Improvement of Industrial Drives With Mechanical Elasticity Using Nonlinear Adaptive Kalman Filter , 2008, IEEE Transactions on Industrial Electronics.

[11]  Teresa Orlowska-Kowalska,et al.  Vibration Suppression in a Two-Mass Drive System Using PI Speed Controller and Additional Feedbacks—Comparative Study , 2007, IEEE Transactions on Industrial Electronics.