Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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Dual Controller Structure for Single Plant Control Using the Distributed Control System

분산 제어 시스템을 이용한 단일 플랜트 제어용 이중 제어기 구조

  • 최군호 (경성대학교 전기공학과)
  • Received : 2023.12.04
  • Accepted : 2023.12.18
  • Published : 2023.12.31
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Abstract

A digital controller uses a microprocessor and is a controller implemented as a program. This method has the advantage of being more maintenance-friendly than existing analog controllers. However, it inevitably requires computation time to execute the internal program. Therefore, the digital controller uses a method of controlling the system at a certain cycle by considering this time, and this cycle is very closely related to the performance of the microprocessor used. In other words, in the case of very high performance, this control cycle can be shortened to near real time, but this may result in a disadvantage in terms of cost. In this paper, we propose a method to solve this problem by implementing two processors with slightly lower performance in a control system in a series-parallel structure. For this purpose, we will use a digital distributed control system and implement an experimental system to examine its effectiveness.

Keywords

References

  1. S.J. Kim and H.S. Hwang, "A Study on the Sampling Period of Digital Control System," Engineering Research of Engineering Development Research Inst., Vol. 14, pp.133-138, 1984.
  2. C.K. Ha and S.W. Lyoo, "Sampling Frequency Selection for Design of Digital Flight Control System with flexible vibration mode," J. of Engineering Research of Ulsan Univ., Vol. 31, No. 1, pp.397-407, 2000.
  3. S.B. Lee, Y.J. Kwon and O.S. Kwon, "Digital Speed Controller of DC Motor using the Sliding Mode," J. of the Korean Institute of Illuminating and Electrical Installation Engineers, Vol. 5, No. 11, pp.69-74, 1991.
  4. C.K. Ha and S.W. Lyoo, "Effect of Sampling Time on Digital Flight Control System," Conf. Proceeding of the Korean Society for Aeronautical and Space Sciences, pp.308-311, 2000.
  5. C.K. Ha and S.W. Lyoo, "Sampling Time Selection for Design of Digital Flight Control System," J. of the Korean Society for Aeronautical and Space Sciences, Vol.29, No.2, pp.308-311, 2001.
  6. G-H Choi, K.Park, and J-H Jung, "An Optimal H2 Decoupling Design for Non-Square Plant Systems based on the Two-Degree-of-Freedom Standard Model," International Journal of Control, Automation, and Systems, Vol.7, No.2, pp.193-202, Feb. 2009. https://doi.org/10.1007/s12555-009-0205-9
  7. G.H. Choi, "Decoupling Control of the Modified Arago System using Cross Compensator with Gain Scheduler Structure," J. of the Semiconductor & Display Technology, Vol. 19, No. 4, pp.105-111, Dec. 2020.
  8. BOSCH, CAN Specification, Part A,B. 1991.
  9. G.H Choi, "The Control of Multiple Plants using the CAN Networks," Journal of the Semiconductor & Display Equipment Technology, Vol. 8, No. 2, pp.37-42, June 2009.
  10. G.H. Choi, "Network Type Distributed Control of a System with Inner Loop Control Structure," J. of the Korean Institute of Iluminating and Electrical Installation Engineers, Vol.28, No.2, pp.100-108, Feb.2014 https://doi.org/10.5207/JIEIE.2014.28.2.100
  11. L.O. Ibrahim and G. H. Choi , "Distributed Control of the Arago's Disc System with Gain Scheduler," Journal of the Semiconductor & Display Technology, Vol. 16, No. 3, pp.25-30, Sep. 2017