The Steam Temperature Control of Renovated Boiler in 100MW Power Plant

100MW 발전소 개조 보일러의 증기온도 제어

  • 임건표 (한국전력공사 전력연구원) ;
  • 이흥호 (충남대 공대 전기공학과)
  • Received : 2011.07.14
  • Accepted : 2011.09.20
  • Published : 2011.10.01


The control logic of steam temperature was redesigned, tested and applied to the power plant after its steam temperature equipments had been revised. This power plant use the ancillary gas gotten in the process of making iron in the steel mill. The boiler of power plant has the superheater and reheater to make the superheated steam. The superheater and reheater have the spray valve to control their temperature. The reheater has the gas bypass damper additionally in this plant. The control logics were redesigned in cascade forms and the initial parameters of control logics were calculated from the several step tests. The final parameters could be obtained through the several repeated tests and the feedforward functions were added by temperature deviation and air flow. The power plant is being commercially-operated normally by improved control logics and It is expected that this improved controls help the efficiency improvement and safe operation of plant.


Supported by : 한국에너지기술평가원


  1. Karl J. Astrom, Tore Hagglund, "PID Controllers, 2nd Edition", Instrument Society of America, pp274-281, 1995
  2. Gregory K. Mcmillan, "Good Tuning : A Pocket Guide", The Instrumentation, Systems and Automation Society, pp96, 2005
  3. Paul W. Murrill, Ph.D., "Fundamentals of Process Control Theory", Instrument Society of America, pp137-146, 2000
  4. Cecil L. Smith, "Practical Process Control, Tuning and Troubleshooting", John Willey & Sons, Inc., pp272, 2009
  5. SAM G. Dukelow, "The Control of Boilers, 2nd Edition", The Instrumentation, Systems and Automation Society, pp145-147, 1991
  6. 신휘범, 이순영, "화력발전소의 과열증기의 온도제어", 대한전기학회 59권 11호, pp2006, 2010