동력기계공학회지 (Journal of Power System Engineering)

  • 제18권6호
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  • Pages.200-206
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  • 2014
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  • 2713-8429(pISSN)
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  • 2713-8437(eISSN)
한국동력기계공학회 (The Korean Society for Power System Engineering)
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PI Controller Design of the Refrigeration System Based on Dynamic Characteristic of the Second Order Model

  • Jung, Young-Mi (Department of Refrigeration and Air-conditioning Engineering, Pukyong National University) ;
  • Jeong, Seok-Kwon (Department of Refrigeration and Air-conditioning Engineering, Pukyong National University) ;
  • Yang, Joo-Ho (Department of Mechanical System Engineering, Pukyong National University)
  • 투고 : 2014.12.04
  • 심사 : 2014.12.04
  • 발행 : 2014.12.31
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초록

This paper deals with deterministic PI controller design based on dynamic characteristics for refrigeration system. The temperature control system of an oil cooler is described as a typical 2nd order model of the refrigeration system which has zeros in a transfer function. PI controller gains satisfying control specifications are represented by the dynamic characteristic functions using relationship between the parameters and the control specifications in the model. Phase margin was considered to increase robustness of the oil cooler control system. Furthermore, the influence of zeros in the model to the control specifications was analyzed in detail for improving control performance. The validity of the suggested PI controller design was investigated using the four types of gains which had been already confirmed their control performances through experiments.

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참고문헌

  1. H. Li, S. K. Jeong and S. S. You, 2009, "Feedforward Control of Capacity and Superheat for a Variable Speed Refrigeration System", Applied Thermal Engineering, Vol. 29, pp. 1067-1074. https://doi.org/10.1016/j.applthermaleng.2008.05.022
  2. S. K. Jeong and S. H. Kim, 2011, "Optimum Controller Design of a Water Cooler for Machine Tools Based on the State Space Model", KJACR, Vol. 23, No. 12, pp. 782-790. https://doi.org/10.6110/KJACR.2011.23.12.782
  3. S. K. Jeong and J. Y. Byun, 2010, "Design of PI and Feedforward Controller for Precise Temperature Control of Oil Cooler System", KSPSE, Vol. 14, No. 6, pp. 89-95.
  4. S. K. Jeong, D. B. Lee and J. I. Yoon, 2012, "Comparison of System Performances of Hot-gas Bypass and Compressor Variable Speed Control of Water Coolers for Machine Tools", KJACR, Vol. 24, No. 1, pp. 1-8. https://doi.org/10.6110/KJACR.2012.24.1.001
  5. S. K. Jeong, J. Y. Byun, S. H. Kim and J. I. Yoon, 2011, "Precise Temperature Control of Oil Coolers with Hot-gas Bypass Manner for Machine Tools Based on PI and Feedforward Control", KJACR, Vol. 23, No. 2, pp. 111-119. https://doi.org/10.6110/KJACR.2011.23.2.111
  6. Y. M. Jung and S. K. Jeong, 2014, "Optimum PI Controller Design for an Oil Cooler System Using GA", KSPSE, Vol. 18, No. 5, pp. 28-34. https://doi.org/10.9726/kspse.2014.18.5.028
  7. M. J. Kim, Y. H. Lee, M. O. So, Y. S. Ha, S. W. Hwang and G. K. Jin, 2007, "Tuning Rules of the PID Controller Using RCGAs", Journal of the Korea Society of Marine Engineering, Vol. 31, No. 4, pp. 448-454. https://doi.org/10.5916/jkosme.2007.31.4.448
  8. Y. M. Jung, J. Y. Byun, J. I. Yoon and S. K. Jeong, 2009, "A Study on High Precision Temperature Control of an Oil Cooler for Machine Tools Using Hot-gas Bypass Method", Journal of the Korean Society of Marine Engineering, Vol. 33, No. 7, pp. 1003-1011. https://doi.org/10.5916/jkosme.2009.33.7.1003
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피인용 문헌

  1. 가변속 압축기를 갖는 오일쿨러의 최적 PI 제어기 설계 vol.28, pp.12, 2014, https://doi.org/10.6110/kjacr.2016.28.12.502
  2. Robust Temperature Control of a Variable-Speed Refrigeration System Based on Sliding Mode Control with Optimal Parameters Derived Using the Genetic Algorithm vol.14, pp.19, 2014, https://doi.org/10.3390/en14196321