Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Improved reactor regulating system logical architecture using genetic algorithm

  • Shim, Hyo-Sub (KEPCO International Nuclear Graduate School (KINGS)) ;
  • Jung, Jae-Chun (KEPCO International Nuclear Graduate School (KINGS))
  • Received : 2016.10.19
  • Accepted : 2017.08.18
  • Published : 2017.12.25
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Abstract

An improved Reactor Regulating System (RRS) logic architecture, which is combined with genetic algorithm (GA), is implemented in this work. It is devised to provide an optimal solution to the current RRS. The current system works desirably and has contributed to safe and stable nuclear power plant operation. However, during the ascent and descent section of the reactor power, the RRS output reveals a relatively high steady-state error, and the output also carries a considerable level of overshoot. In an attempt to consolidate conservatism and minimize the error, this work proposes to apply GA to RRS and suggests reconfiguring the system. Prior to the use of GA, reverse engineering is implemented to build a Simulink-based RRS model. Reengineering is followed to produce a newly configured RRS to generate an output that has a reduced steady-state error and diminished overshoot level. A full-scope APR1400 simulator is used to examine the dynamic behaviors of RRS and to build the RRS Simulink model.

Keywords

References

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