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Output Feedback Dissipation Control for the Power-Level of Modular High-Temperature Gas-Cooled Reactors
Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
Received: 8 August 2011; in revised form: 20 October 2011 / Accepted: 20 October 2011 / Published: 1 November 2011
Abstract: Because of its strong inherent safety features and the high outlet temperature, the modular high temperature gas-cooled nuclear reactor (MHTGR) is the chosen technology for a new generation of nuclear power plants. Such power plants are being considered for industrial applications with a wide range of power levels, thus power-level regulation is very important for their efficient and stable operation. Exploiting the large scale asymptotic closed-loop stability provided by nonlinear controllers, a nonlinear power-level regulator is presented in this paper that is based upon both the techniques of feedback dissipation and well-established backstepping. The virtue of this control strategy, i.e., the ability of globally asymptotic stabilization, is that it takes advantage of the inherent zero-state detectability property of the MHTGR dynamics. Moreover, this newly built power-level regulator is also robust towards modeling uncertainty in the control rod dynamics. If modeling uncertainty of the control rod dynamics is small enough to be omitted, then this control law can be simplified to a classical proportional feedback controller. The comparison of the control performance between the newly-built power controller and the simplified controller is also given through numerical study and theoretical analysis.
Keywords: Modular High Temperature Gas-cooled Reactor (MHTGR); power-level control; feedback dissipation
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Cite This Article
MDPI and ACS Style
Dong, Z. Output Feedback Dissipation Control for the Power-Level of Modular High-Temperature Gas-Cooled Reactors. Energies 2011, 4, 1858-1879.
Dong Z. Output Feedback Dissipation Control for the Power-Level of Modular High-Temperature Gas-Cooled Reactors. Energies. 2011; 4(11):1858-1879.
Dong, Zhe. 2011. "Output Feedback Dissipation Control for the Power-Level of Modular High-Temperature Gas-Cooled Reactors." Energies 4, no. 11: 1858-1879.