Nuclear Techniques ›› 2019, Vol. 42 ›› Issue (8): 80602-080602.doi: 10.11889/j.0253-3219.2019.hjs.42.080602

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

ADS subcritical reactor core power control based on external neutron source intensity

Tianyu HUI,Run LUO,Wenjie ZENG(),Jinsen XIE,Qingfeng JIANG   

  1. School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
  • Received:2019-05-13 Revised:2019-06-12 Online:2019-08-10 Published:2019-08-23
  • Contact: Wenjie ZENG
  • About author:HUI Tianyu, male, born in 1998, undergraduate in University of South China, major in nuclear engineering and technology
  • Supported by:
    the Excellent Youth Project of Hunan Provincial Education Department(18B259)

Abstract: Background

Accelerator driven subcritical system (ADS) can be used for power generation, proliferation and transmutation. China initiative accelerator driven system (CIADS) is a self-designed ADS research facility in China. It only relies on the intensity of neutron source outside the accelerator to regulate the core power.


This study aims to accurately regulate power in transient conditions to ensure the transient safety of the reactor based on the strength of external neutron source.


The lumped parameter method was used to establish the core nonlinear model of CIADS, and the micro-disturbance linearization method was used to linearize the core nonlinear model. Dual-input and dual-output core state space model was established, and core power fuzzy proportional integral derivative (PID) controller was designed to carry out disturbance control simulation to obtain the core control response characteristics of CIADS.

Results & Conclusion

The simulation results show that the use of fuzzy PID controller can achieve good control of core relative power under the different external neutron source relative intensity disturbance or core inlet temperature disturbance.

Key words: External neutron source relative intensity, Accelerator driven subcritical system, Core power, Fuzzy PID controller

CLC Number: 

  • TL362+.5