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논문 기본 정보

자료유형
학술저널
저자정보
Jiuwu Hui (Shanghai Jiao Tong University) Jingqi Yuan (Shanghai Jiao Tong University)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제52권 제11호
발행연도
2020.11
수록면
2,522 - 2,534 (13page)
DOI
https://doi.org/10.1016/j.net.2020.04.027

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초록· 키워드

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It is well known that the model of nuclear reactors features natural nonlinearity, and variable parametersduring power tracking operation. In this paper, a disturbance observer-based adaptive sliding modecontrol (DOB-ASMC) strategy is proposed for power tracking of the pressurized-water reactor (PWR) inthe presence of lumped disturbances. The nuclear reactor model is firstly established based on pointreactor kinetics equations with six delayed neutron groups. Then, a new sliding mode disturbanceobserver is designed to estimate the lumped disturbance, and its stability is discussed. On the basis of thedeveloped DOB, an adaptive sliding mode control scheme is proposed, which is a combination ofbackstepping technique and integral sliding mode control approach. In addition, an adaptive law isintroduced to enhance the robustness of a PWR with disturbances. The asymptotic stability of the overallcontrol system is verified by Lyapunov stability theory. Simulation results are provided to demonstratethat the proposed DOB-ASMC strategy has better power tracking performance than conventional slidingmode controller and PID control method as well as conventional backstepping controller.

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