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Latest News
DOE awards $2.7B for HALEU and LEU enrichment
Yesterday, the Department of Energy announced that three enrichment services companies have been awarded task orders worth $900 million each. Those task orders were given to American Centrifuge Operating (a Centrus Energy subsidiary) and General Matter, both of which will develop domestic HALEU enrichment capacity, along with Orano Federal Services, which will build domestic LEU enrichment capacity.
The DOE also announced that it has awarded Global Laser Enrichment an additional $28 million to continue advancing next generation enrichment technology.
Zhe Dong, Miao Liu, Xiaojin Huang (Tsinghua Univ)
Proceedings | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technolgies (NPIC&HMIT 2019) | Orlando, FL, February 9-14, 2019 | Pages 1425-1434
To balance IRE for deep penetration, it is necessary for nuclear power plants (NPPs) operates with enough flexibility. To realize the flexible operation, the automatic generation control (AGC) should be developed. In this paper, the adaptive AGC is proposed for SMR-based multimodular NPPs, which has a simple proportional-integral (PI) structure. The corresponding control system of multimodular NPPs with AGC function is also designed, which is constituted by the units of NSSS control, multimodular coordination, turbine speed governor (TSG) and AGC. The adaptive AGC method as well as the plant control system design with AGC function are then applied to two modular high temperature gas-cooled reactor plant HTR-PM. Numerical simulation results show that the newly-built multimodular control system can well stabilize the grid frequency by properly performing the power-level maneuver and maintenance of NSSS modules.
