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A Study on Efficiency Improvement by Fine Tuning of Power Plant Control

제어시스템 튜닝에 의한 발전소 효율향상에 관한 연구

  • 김호열 (한국전력공사 전력연구원) ;
  • 김병철 (한국전력공사 전력연구원) ;
  • 변승현 (한국전력공사 전력연구원)
  • Received : 2012.07.10
  • Accepted : 2012.09.05
  • Published : 2012.10.01

Abstract

A fine tuning on a control system is essential not only for stable operation but also for efficient operation of the power plant. There has been a very few studies on efficiency change by control system tuning. So, it was not clear that if it could be improved or not when the control is stable by fine tuning and how much it could be improved if it works. An accurate algorithm for measurement of the plant efficiency was newly introduced and implemented to measure integrated fuel flow and electricity MW output and to calculate the mean efficiency for given time. As a result, stable operation after fine tuning of control parameters for major controlled variables brought higher efficiency than un-stable operations like a cycling or an oscillation. The plant efficiency has been monitored during various tests and tunings to confirm how much it changes by tuning of the control system on power plant. Now, we can say that the efficiency can be improved in stable operation by fine tuning of the control system.

Keywords

Control tuning;Efficiency;PID;Tuning;Stability

References

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