Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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Determining of the Sampling Time and Adjusting PID Coefficients in a Discrete System

이산 시스템에서 샘플링 시간의 설정 및 PID 계수 조정

  • Choi, Goon-Ho (Department of Electrical Engineering, KyungSung University)
  • 최군호 (경성대학교 전기공학과)
  • Received : 2017.11.27
  • Accepted : 2017.12.21
  • Published : 2017.12.31
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Abstract

Recent controller design techniques often discretize the target system and implement a discrete controller that is digitized to match the target system. When constructing such a discrete system, it is necessary to first determine the sampling time. The smaller the sampling time is, the more advantageous it can be made similar to the original system, but the cost is a problem when realizing such a configuration as hardware. On the other hand, the longer the time, the more different the system is from the original system, and eventually the control becomes impossible. In this paper, we consider the above problem and propose a more logical approach to determine the sampling time in the discrete system and investigate the relation with the differential controller. We also apply this process to a nonlinear system called ARAGO disc and verify its validity through computer simulation.

Keywords

References

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