An Examination on the Power Control by Load Following of Nuclear Generator


  • Hyun-Chul Lee
  • Young-Gi Roh
  • Byoung-Jo Jung


Background/Objectives: Nuclear power generator has supplied a large capacity power and operated to low CO2emission.

Methods/Statistical analysis: Nuclear power generation supplies a constant power for safety reasons in the power system. However, it could be operated an acceptable performance range for the control of generator considering nuclear safety. This study has been evaluated power frequency fluctuation limits by applying N-2 generator contingency, in consideration of the safety of the power plant.The load variation pattern was analyzed of nuclear power by using power system prediction data of 2024.

Findings: The frequency recovery of the power system reference for stable system operation reduces the frequency fluctuation by securing reserve power of the generation.This paper has been used the power control by using governor control of the generator.Simulation results has showed that using the governor load follow-up function of a nuclear power generator can reduce the frequency drop width by providing an immediate response reserve for the expected maximum emergencies. It was also more economical than hydro-dynamic operation for instantaneous response reserve.In this paper, analysis has been performed using commercial power system analysis program.

Improvements/Applications: It was possible to obtain cost-effective results than the hydro-generator operation of the momentary reactive reserve for conventional governor droop control. Nuclear power could be controlled by various operating methods, and could be used as friendly environment energy through reduction of CO2 in the environment side.It is proposed as a viable alternative to prepare for climate change and promote energy independence.

Keywords: Nuclear Power, Load Fluctuation, Power Frequency, Reserve Power, N-2 Contingency