설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제13권9호
  • /
  • Pages.810-817
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  • 2001
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  • 1229-6422(pISSN)
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  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

퍼지 로직 적용 PID 제어를 이용한 멀티형 열펌프의 용량조절

Capacity Modulation of a Multi-Type Heat Pump System using PID Control with Fuzzy Logic

  • 김세영 (LG전자 디지털 어플라이언스 연구소) ;
  • 김민수 (서울대학교 기계항공공학부)
  • 발행 : 2001.09.01
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초록

Performance of a water-to-water multi-type heat pump system using R22 which has tow indoor units has been investigated experimentally. The refrigerant flow rate of each indoor unit was regulated by an electronic expansion valve and the total refrigerant flow rate of the system was controlled by a variable speed compressor. In the system, evaporator outlet pressure of refrigerant and outlet temperatures of secondary fluid from indoor units were selected as control variables. Experiments were executed for both cooling and heating modes using PID control method with fuzzy logic, and results of the test are compared with a classical PID method. In the case of PID control with fuzzy logic, the fuzzy control rules corrects PID parameters each time. Results show that PID control with fuzzy logic has the merits of quick response and reduced overshoot.

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참고문헌

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