Design of a fault-tolerant controller for the SP-100 space reactor
- Nuclear Eng. Dept., Chosun Univ., 375 Seosuk-dong, Dong-gu, Gwangju 501-759 (Korea, Republic of)
- Nuclear Eng. Dept., Univ. of Tennessee, Knoxville, TN 37996-2300 (United States)
The control system of an SP-100 space reactor is a key element of space reactor design to meet the space mission requirements of safety, reliability, and life expectancy. In this work, a fault-tolerant controller (FTC) is developed to control the thermoelectric (TE) power in the SP-100 space reactor. A fault-tolerant controller makes the control system stable and retains acceptable performance even under system faults. The objectives of the proposed model predictive controller are to minimize both the difference between the predicted TE power and the desired power, and the variation of control drum angle that adjusts the control reactivity. Also, the objectives are subject to constraints of maximum and minimum control drum angle and maximum drum angle variation speed. The model predictive controller incorporates a fault detection and diagnostics algorithm so that the controller can work properly even under input and output measurement faults. A lumped parameter simulation model of the SP-100 nuclear space reactor is used to verify the proposed controller design. Simulation result show that the TE generator power level, regulated by the proposed controller, could track the target power level effectively even under measurement faults, satisfying all control constraints. (authors)
- Research Organization:
- American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
- OSTI ID:
- 22030124
- Resource Relation:
- Conference: NPIC and HMIT 2006: 5. International Topical Meeting on Nuclear Plant Instrumentation Controls, and Human Machine Interface Technology, Albuquerque, NM (United States), 12-16 Nov 2006; Other Information: Country of input: France; 25 refs.; Related Information: In: Proceedings of the 5. International Topical Meeting on Nuclear Plant Instrumentation Controls, and Human Machine Interface Technology| 1430 p.
- Country of Publication:
- United States
- Language:
- English
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