Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on Energy Saving Algorithm of Electro-Pneumatic Regulator with Modified PWM Driven Method

  • Kim, Hyoung-Seok (School of Mechanical and Automotive Engineering, University of Ulsan) ;
  • Ahn, Kyoung-Kwan (School of Mechanical and Automotive Engineering, University of Ulsan) ;
  • Lee, Byung-Ryong (School of Mechanical and Automotive Engineering, University of Ulsan) ;
  • Yun, So-Nam (Korea Institute of Machinery & Materials)
  • Published : 2006.09.01
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Abstract

The development of an accurate and energy saving electro-pneumatic regulator that may be applied to a variety of practical pressure control applications is described in this paper. A novel modified pulse width modulation (MPWM) valve pulsing algorithm allows the electro-pneumatic regulator to become energy saving system. A comparison between the system response of conventional PWM algorithm and that of the modified PWM (MPWM) algorithm shows that the control performance is almost the same, but energy saving is greatly improved by adopting this new MPWM algorithm. The effectiveness of the proposed control algorithm is demonstrated through experiments with various reference trajectories.

Keywords

References

  1. Ahn, K. K. and Tu, D. C. T., 2004, 'Improvement of the Control Performance of Pneumatic Artificial Manipulators Using an Intelligent Switching Control Method,' in KSME, Int. Jour., Vol. 18, No.8, pp. 1388-1400
  2. Ahn, K. K., Tu, D. C. T. and Ahn, Y. K., 2005, 'Performance Improvement of Pneumatic Artificial Muscle Manipulators Using Magneto-Rheological Brake,' in KSME, Int. Jour., Vol. 19, No. 3, pp. 777-790 https://doi.org/10.1007/BF02916126
  3. Cho, H. S. and Lee, C. W., 1985, 'Perfomance of a Modified On-off Controller with PD action of Pneumatic Servomechanism,' Int. Sym. on Fluid Control and Measurement, Tokyo, Sept, pp. 37-45
  4. Huu, T. N., 1987, 'Verhalten servopneumatischer Zylinderantriebe im Lageregelkreis,' Ph. D. thesis, Rety-Aachen
  5. Hwang, W. T., Choi, S. H. and Lee, J. O., 1998, 'Study on the Effective Operating Method of the on-off Valve for a Pneumatic Servo System,' KSPE, Vol. 15, No. 1
  6. Kimura, Tetsuya et al., 1995, 'Control for pneumatic Actuator Systems using Feedback Linearization with Disturbance Rejection,' Proc. of the 1995 American Control Conf., June, pp. 825-829 https://doi.org/10.1109/ACC.1995.529364
  7. Lee, S. G., 1985, 'On the Development of a PWM Control-based Pneumatic Servomechanism,' Int. Sym. on Fluid Control and Measurement, Tokyo, Sept., pp. 29-36
  8. Ning, Ye. et al., 1991, 'A Servocontrolled Pneumatic Actuator for Small Movement Application to an Adaptive Gripper,' IEEE https://doi.org/10.1109/ICAR.1991.240505
  9. Robert, B. van Varseveld and Gary, M. Bone, 1997, 'Accurate Position Control of a Pneumatic Actuator Using On/Off Solenoid Valves,' IEEE/ASME Trans., Vol. 2, No. 3, Sept https://doi.org/10.1109/3516.622972
  10. Shen, Xiangrong, et al., 2004, 'Nonlinear Averaging Applied to the Control of Pulse Width Modulated (PWM) Pneumatic System,' Proc. of the 2004 American Control Conf.
  11. Wang, Jihong et al., 1999, 'A Practical Strategy for Servo Pneumatic Actuator Systems,' Control Engineering Practice, Vol. 7, No. 7, pp.1483-1488 https://doi.org/10.1016/S0967-0661(99)00115-X
  12. Wang, Xuesong et al., 2003, 'Modeling and Control for Pneumatic Manipulator Based on Dynamic Neural Network,' Proc. of IEEE, pp.2231-2236