제어알고리즘 개발을 위한 변압기 냉각시스템의 수학적모델

Mathematical Models of a Transformer Cooling System for the Control Algorithm Development

  • 한도영 (국민대학교 기계.자동차공학부) ;
  • 노희전 (국민대학교 기계공학과 대학원)
  • Han, Do-Young (School of Mechanical and Automotive Engineering, Kookmin University) ;
  • Noh, Hee-Jeon (Graduate School of Mechanical Engineering, Kookmin University)
  • 발행 : 2010.02.10

초록

In order to improve the efficiency of a main transformer in a train, the optimal operation of a cooling system is necessary. For the development of optimal control algorithms of a cooling system, mathematical models of a main transformer cooling system were developed. These include static and dynamic models of a main transformer, an oil pump, an oil cooler, and a blower. Static models were used to find optimal oil temperatures of the inlet and the outlet of a transformer. Dynamic models were used to predict transient performances of control algorithms of a blower and an oil pump. Simulation results showed good predictions of the static and the dynamic behavior of a main transformer cooling system. Therefore, mathematical models developed in this study may be effectively used for the development of control algorithms of a main transformer cooling system.

키워드

참고문헌

  1. Seo, S., Han, S., Kim, N. and Kim, J., 2006, On the development of Korean tilting train express, Proceedings of KSME, pp. 287-291.
  2. Eum, K. and Um, J., 2004, Evaluation of running stability of tilting trains in conventional curved track, Proceedings of the KSR, Vol. 7, No. 4, pp. 153-159.
  3. Han, Y. and Lee, S., A study on TTX traction characteristics using measurement system, Proceeding of the KIEEME, Vol. 20, No. 12, pp. 1093-1098.
  4. Kang, H., Kim, J. and Kim, C., 2001, A study on heat transfer performances of a heat pipe heat sink for power control semiconductors, Proceedings of the SAREK, Vol. 13, No. 8, pp. 701-709.
  5. Woojin industrial systems Co., 2007, Technical development of propulsion system, Construction and Transportation Report, pp. 307- 357.
  6. Han, D. and Park, K., 2006, A system operating algorithm for the effective operation of a multi-type air-conditioning system, SAREK, Vol. 18, No. 7, pp. 587-595.
  7. Han, D. and Kim, S., 2008, Effective dynamic models for the development of control algorithms of a condensing gas boiler system, SAREK, Vol. 20, No. 8, pp. 365-371.
  8. Han, D. and Jung, J., 2006, Control algorithms for the effective operation of a $CO_2$ automotive air-conditioning system, SAREK, Vol. 18, No. 10, pp. 791-799.
  9. Mills, A. F., 1999, Basic heat mass transfer, McGraw Hill, pp. 621-646.
  10. Munson, B. R., Young, D. F. and Okishi, T. H., 2006, Fundamentals of fluid mechanics, Willey, pp. 812-830.
  11. Franklin, G. F., Powell, J. D. and Emami- Naeini, A., 2006, Feedback control of dynamic systems, Pearson Education, pp. 152- 156.