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http://dx.doi.org/10.5516/NET.2007.39.1.063

DEVELOPMENT OF A RECONFIGURABLE CONTROL FOR AN SP-100 SPACE REACTOR  

Na Man-Gyun (Department of Nuclear Engineering, Chosun University)
Upadhyaya Belle R. (Department of Nuclear Engineering, The University of Tennessee)
Publication Information
Nuclear Engineering and Technology / v.39, no.1, 2007 , pp. 63-74 More about this Journal
Abstract
In this paper, a reconfigurable controller consisting of a normal controller and a standby controller is designed to control the thermoelectric (TE) power in the SP-100 space reactor. The normal controller uses a model predictive control (MPC) method where the future TE power is predicted by using support vector regression. A genetic algorithm that can effectively accomplish multiple objectives is used to optimize the normal controller. The performance of the normal controller depends on the capability of predicting the future TE power. Therefore, if the prediction performance is degraded, the proportional-integral (PI) controller of the standby controller begins to work instead of the normal controller. Performance deterioration is detected by a sequential probability ratio test (SPRT). A lumped parameter simulation model of the SP-100 nuclear space reactor is used to verify the proposed reconfigurable controller. The results of numerical simulations to assess the performance of the proposed controller show that the TE generator power level controlled by the proposed reconfigurable controller could track the target power level effectively, satisfying all control constraints. Furthermore, the normal controller is automatically switched to the standby controller when the performance of the normal controller degrades.
Keywords
Genetic Algorithm; Model Predictive Control; Reactor Power Control; Reconfigurable Control; Sequential Probability Ratio Test; SP-100 Space Reactor; Support Vector Machines;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 0  (Related Records In Web of Science)
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