Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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Modeling and PID Control of an Electro-Hydraulic Servo System

전기유압 서보시스템의 모델링과 PID 제어

  • Lee, Se Jin (Graduate School, Korea University of Technology and Education) ;
  • Kim, Cheol Jae (Graduate School, Korea University of Technology and Education) ;
  • Kang, Yong Ju (Graduate School, Korea University of Technology and Education) ;
  • Choi, Soon Woo (Graduate School, Korea University of Technology and Education) ;
  • Huh, Jun Young (School of Mechatronics Engineering, Korea University of Technology and Education)
  • Received : 2019.10.02
  • Accepted : 2019.11.03
  • Published : 2019.12.01
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Abstract

The electro-hydraulic training device (TP511) provided by Festo Didactic are widely used, but teaching materials do not include mathematical modeling. Thus, there is a limit for full-scale learning about the electro-hydraulic servo system by using this equipment. In this study, for the purpose of improving students' understanding of the classical control and modern control Festo's electro-hydraulic servo training device (TP511) was mathematically modeled and parameter values were calculated by examining the characteristics of each component. And P, PI, PD, and PID controllers highly used in the industrial field, were designed by using the root locus method to achieve the optimal gains and used for simulation and experiments using the Festo's electro-hydraulic servo training apparatus. The validity of the derived mathematical model and the calculated parameter values were verified through simulation and experiment. It was found that the p control can achieve the control target more effectively than the pid control for Festo's electro-hydraulic servo training system by using the root locus method.

Keywords

References

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