대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제40권5호
  • /
  • Pages.297-304
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  • 2016
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  • 1226-4881(pISSN)
  • /
  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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서지 발현과 성능 예측을 위한 원심압축기 동적 거동 모델

Dynamic Model of Centrifugal Compressor for Prediction of Surge Evolution and Performance Variations

  • Jung, Mooncheong (Department of Mechanical Engineering, Chungnam Nat'l Univ.) ;
  • Han, Jaeyoung (Department of Mechanical Engineering, Chungnam Nat'l Univ.) ;
  • Yu, Sangseok (Department of Mechanical Engineering, Chungnam Nat'l Univ.)
  • 투고 : 2015.12.15
  • 심사 : 2016.02.15
  • 발행 : 2016.05.01
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초록

통상 제어기 설계용으로 개발되는 차량용 수퍼 차져의 동적 거동 모델은 경험식에 의존한 압축기 맵을 활용하고 있어, 실제 서지 현상의 발생에 따른 시스템의 영향과 거동특성을 모사하는데 한계가 있다. 본 연구에서는 수퍼 차져의 운전 동특성을 모사할 수 있는 해석기반 압축기 모델을 개발하고 운전 변동성에 따른 압축기의 운전 추이를 모사하고자 한다. 모델 개발은 SIMULINK$^{(R)}$ 환경에서 진행하고, 기준 동특성 모델은 Greitzer의 압축기 모델을 적용하였다. 해석 결과는 실험 결과와 비교 검증을 통해 모델의 타당성을 확인하였으며 운전 특성 변화에 따른 압축기 성능 및 서지 발생 가능성에 대해 확인 하였다.

When a control algorithm is developed to protect automotive compressor surges, the simulation model typically selects an empirically determined look-up table. However, it is difficult for a control oriented empirical model to show surge characteristics of the super charger. In this study, a dynamic supercharger model is developed to predict the performance of a centrifugal compressor under dynamic load follow-up. The model is developed using Simulink$^{(R)}$ environment, and is composed of a compressor, throttle body, valves, and chamber. Greitzer's compressor model is used, and the geometric parameters are achieved by the actual supercharger. The simulation model is validated with experimental data. It is shown that compressor surge is effectively predicted by this dynamic compressor model under various operating conditions.

키워드

참고문헌

  1. Gravdahl, J. T., Willems, F., Jager B. and Egeland, O., 2000, "Modeling for Surge Control of Centrifugal Compressors: Comparison with Experiment," Int. J. Decision and Control, Vol. 2, pp. 1341-1346.
  2. Hansen K. E. and Larsen, P. S., 1981, "Experimental and Theoretical Study of Surge in a Small Centrifugal Compressor," Int. J. Fluids Eng, Vol. 103, pp. 391-394. https://doi.org/10.1115/1.3240796
  3. Dehner, R., Selamet, A., Keller, P. and Becker, M., 2010, "Simulation of Mild Surge in a Turbocharger Compression System," Int. J. Engines, Vol. 119, pp. 197-212.
  4. Fink, D. A., Cumpsty N. A. and Greitzer, E. M., 1992, "Surge Dynamics in a Free-spool Centrifugal Compressor System," Int. J. Turbomachinery, Vol. 114, pp. 321-332. https://doi.org/10.1115/1.2929146
  5. Gravdahl, J. T. and Egeland, O., 1999, "Centrifugal Compressor Surge and Speed Control," Control Systems Technology, IEEE, Vol. 7, pp. 567-579. https://doi.org/10.1109/87.784420
  6. Choi, J. H., 2008, "A Study on Centrifugal Compressor Design Optimization for Increasing Surge Margin," Journal of Fluid Machinery and Systems, Vol. 11, pp. 38-45.
  7. Gravdahl, J. T. and Egeland, O., 1997, "A Moore-Greitzer Axial Compressor Model with Spool Dynamics," Int. J. Decision and Control, Vol. 5, pp. 190-198.
  8. Pampreen, R. C., 1973, "Small Turbomachinery Compressor and Fan Aerodynamics," Int. J. Eng. Power, Vol. 3, pp. 251-256.
  9. Greitzer, E. M., 1976, "Surge and Rotating Stall in Axial Flow Compressors, Part I: Theoretical Compression System Model," Int. J. Engineering for Power, Vol. 98, pp. 190-198. https://doi.org/10.1115/1.3446138
  10. Gravdahl, J. T. and Egeland, O., 1997, "A Moore-Greitzer Axial Compressor Model with Spool Dynamics," Int. J. Decision and Control, Vol. 5, pp. 190-198.
  11. Gravdahl, J. T. and Egeland, O., 1997, "A Moore-Greitzer Axial Compressor Model with Spool Dynamics," Int. J. Decision and Control, Vol. 5, pp. 190-198.
  12. HKS, GTS4015HP Compressor Map, http://www.hks-power.co.jp/product/supercharger/universal_kit/specs.html.

피인용 문헌

  1. An Advanced Surge Dynamic Model for Simulating Emergency Shutdown Events and Comparing Different Antisurge Strategies vol.141, pp.7, 2019, https://doi.org/10.1115/1.4042167