Adaptive PD Power-Level Control for Pressurized Water Reactors

Abstract It is well known that the pressurized water reactor (PWR) is the most widely utilized nuclear fission reactor whose safe, stable and efficient operation is meaningful to the nowadays renaissance of nuclear energy industry. Power-level regulation is a significant technique for guaranteeing both operational stability and efficiency of nuclear reactors. Since every nuclear reactor is a complex nonlinear system with high parameter uncertainties, it is necessary to develop the adaptive power-level control technique that can strengthen closed-loop stability, guarantee load-following performance and be unsensitive to those parameter uncertainties In this paper, an adaptive proportional-differential (PD) control is proposed for the power-level regulation of the PWRs, which is theoretically proved to be globally asymptotically stabilizable and can be tuned online with a well-designed adaptation law. Further-more, numerical simulation results show not only the feasibility of this newly-built regulator but also the relationship between the control performance and the parameter of the adaptation law.

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