Host: The Japan Society of Mechanical Engineers
Name : The 30th International Conference on Nuclear Engineering (ICONE30)
Date : May 21, 2023 - May 26, 2023
In recent years, the ratio of renewable energy has increased toward carbon neutrality, and the ratio of thermal power generation is expected to decrease in the future. Until now, nuclear power plants in Japan have been utilized as base-load operations only, but there is an increasing need to implement Flexible Power Operation (FPO) in nuclear power plants as an electric power grid stabilization measure against the introduction of renewable energy. In response to this situation, the new type of Pressurized Water Reactor (PWR) SRZ-1200 is employing a new control scheme to improve the performance of the FPO. The main development is the primary coolant average temperature control scheme with selecting the control bank to be driven so that the axial power distribution (ΔI) in the core is kept within an acceptable range by the control rod control system. By implementing this control scheme, it is expected to improve the FPO performance of the SRZ-1200 compared to the existing reactors in Japan.
