耦合S-CO2布雷顿循环的自然循环铅冷快堆控制策略研究

作者：Liu Guixiu; Yi Jingwei; Li Gen^*; Liang Tiebo; Fang Huawei; Chen Weixiong

来源：Nuclear Power Engineering, 2023, 44(4): 138-147.

DOI：10.13832/j.jnpe.2023.04.0138

• Lead cooled fast reactor
• Natural circulation
• Reactor control
• S-CO2 Brayton cycle

The coupled power generation system of natural circulation lead cooled fast reactor with supercritical carbon dioxide (S-CO2) Brayton cycle is the development trend of advanced nuclear energy systems in the future. Based on the software Apros, a dynamic model of the coupled power generation system was built, and two reactor control schemes were designed, one of which was the conventional control scheme of the reference core power control system of pressurized water reactor, and the other was the compensation control scheme with rod position limit of control rods. The research results showed that under a small variable load rate of 3% FP/min (FP is short for full power), the dynamic deviation of load following under both control schemes was between ?2% and 1%, however, for the stability of core outlet coolant temperature, the compensation control scheme was superior to the conventional control scheme; at a large variable load rate of 6%FP/min-18%FP/min, the variation range of core outlet temperature under conventional control was ?40℃-0℃, while the variation range of the core outlet temperature under compensation control was ?5℃-2℃. Therefore, the compensation control scheme can be used as an effective means for the control of natural circulation lead cooled fast reactor. ? 2023 Yuan Zi Neng Chuban She.

• 单位
  动力工程多相流国家重点实验室; 华南理工大学