Investigation of a Suboptimal Controller Design for a Nuclear Reactor System.
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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The optimal control problem of a typical nuclear reactor power plant, which is described by a ninth-order nonlinear differential equation, having time-varying parameters, is considered. The nonlinear model complicates the optimal controller synthesis. Therefore, the approach of this work is to approximate the response of the reactor system by that of a second-order linear model. The model parameters are chosen to minimize the derivations between the system and model responses using a search routine. The optimal feedback parameters computed for the second-order model is used for suboptimal control of the system. The model parameters are updated to reflect the system nonlinearities as well as changes in the system parameters the corresponding control scheme is adaptive. It is shown that for the operating conditions considered, the adaptive controller need not be on-line.
- Theoretical Mathematics
- Nuclear Power Plants and Fission Reactor Engineering