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퍼지 적용 PID제어를 이용한 오일쿨러 시스템의 온도제어
Temperature Control for an Oil Cooler System Using PID Control with Fuzzy Logic

김순철   (경남정보대학 전자정보계열UU0000080  ); 홍대선   (창원대학교 기계설계공학UU0001233  ); 정원지   (창원대학교 기계설계공학과UU0001233  );
  • 초록

    Recently, technical trend in machine tools is focused on enhancing of speed, accuracy and reliability. The high speed usually results in thermal displacement and structural deformation. To minimize the thermal effect, precision machine tools adopt a high precision cooling system. This study proposes a temperature control for an oil cooler system using Pill control with fuzzy logic. In the cooler system, refrigerant flow rate is controlled by rotational speed of a compressor, and outlet oil temperature is selected as the control variable. The fuzzy control rules iteratively correct PID parameters to minimize the error and difference between the outlet temperature and the reference temperature. Here, ambient temperature is used as the reference one. To show the effectiveness of the proposed method, a series of experiments are conducted for an oil cooler system of machine tools, and the results are compared with the ones of a conventional Pill control. The experimental results show that the proposed method has advantages of faster response and smaller overshoot.


  • 주제어

    비례-적분-미분 제어 .   퍼지제어 .   오일냉각기.  

  • 참고문헌 (10)

    1. A study on thermal specific of operational spindle system of machine tool , Lim, Y. C.;Kim, J. K. , Proceedings of KSMTE, Fall Conference / v.,pp.498-503,
    2. Characteristics Analysis and Compensation of Thermal Deformation for Machine Tools with respect to Operating Conditions , Lee, J. J.;Choi, D. B.;Park, H. K.;Kwak, S. J. , Transactions of KSMTE / v.10,pp.70-75,
    3. Fuzzy Defrost Control of the Multi-Type Heat Pump System , Kim, K. H.;Han, D. Y. , Korean J. Air-Cond. Ref. Eng. / v.12,pp.711-716,
    4. Capacity Modulation of a Multi-Type Heat Pump System Using PID Control , Jung, D. S.;Kim, M. C.;Kim, M. S.;Lee, W. Y. , Korean J. Air-Cond. Ref. Eng. / v.10,pp.466-475,
    5. Fuzzy controller design, evaluation, parallel and hierarchical combination with a PID controller , Ketata, R.;De Geest, D.;Titli, A. , FUZZY Sets and Systems / v.71,pp.113-129,
    6. Fuzzy sets for the man-machine interaction , Macvicar-Whelan, P. J. , Journal of Man-Machine Studies / v.8,pp.687-697,
    7. Design of Fuzzy-PI controllers for the gas turbine system , Kim, J. W.;Kim, S. W. , Journal of Control, Automation and Systems Engineering / v.6,pp.,
    8. Incremental fuzzy expert PID control , Tzafestas, S. , IEEE Trans. on Industrial Electronics / v.37,pp.,
    9. Wang, L.-X. , A Course in fuzzy systems and control / v.,pp.,
    10. Rule development and adjustment strategies of a Fuzzy logic controller for an HVAC system part two-experiment , Huang, S.;Nelson, R. M. , ASHRAE Trans. / v.100,pp.851-856,
  • 이 논문을 인용한 문헌 (8)

    1. Jeong, Hwang-Young ; Lee, Hyun-Seok ; Park, Tae-Min ; Shin, Woo-Cheol ; Koh, Jun-Bin ; Hong, Jun-Hee 2008. "Development of Automatic Cam Profile Measurement System" 한국공작기계학회논문집 = Transactions of the Korean society of machine tool engineers, 17(1): 106~112     
    2. Byun, J.Y. ; Jeong, S.K. 2010. "Design of PI and Feedforward Controller for Precise Temperature Control of Oil Cooler System" 한국동력기계공학회지 = Journal of the korean society for power system engineering, 14(6): 89~95     
    3. Baek, S.M. ; Moon, C.G. ; Yoon, J.I. ; Jeong, S.K. ; Kim, E. 2011. "The characteristics of capacity control using a variable speed compressor in an industrial cooler" 한국동력기계공학회지 = Journal of the korean society for power system engineering, 15(2): 37~41     
    4. Jeong, Seok-Kwon ; Hong, Ki-Hak 2013. "Optimal PI Controller Design for Refrigeration System Considering Disturbance" 설비공학논문집 = Korean journal of air-conditioning and refrigeration engineering, 25(2): 85~93     
    5. Yoon, Jung-In ; Cho, Kwan-Hwan ; Baek, Seung-Moon 2013. "" 한국태양에너지학회 논문집 = Journal of the Korean Solar Energy Society, 33(4): 1~7     
    6. 2014. "" Journal of mechanical science and technology, 28(2): 721~727     
    7. 2014. "" Journal of mechanical science and technology, 28(2): 721~727     
    8. Kwon, Taeeun ; Jeong, Taeyoung ; Jeong, Seokkwon 2016. "Optimization of a PI Controller Design for an Oil Cooler System with a Variable Rotating Speed Compressor" 설비공학논문집 = Korean journal of air-conditioning and refrigeration engineering, 28(12): 502~508     

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    1. 2004 "질화탄탈 박막형 스트레인 게이지의 제작과 특성" 센서학회지 = Journal of the Korean Sensors Society 13 (4): 303~308    
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