高温气冷堆氢电联产核电厂的协调控制研究

Coordinated Control Study of High Temperature Gas⁃Cooled Reactor Hydrogen Cogeneration Nuclear Power Plant

利用核能的氢电联产近年来越来越受到关注。模块式高温气冷反应堆(MHTGR)是一种具有固有安全性优势的小型模块化反应堆。其核蒸汽供应系统可以提供约570℃的高温蒸汽。提出了氢电联产核电厂的协调控制方案。采用了六个高温气冷堆核蒸汽供应模块与甲烷蒸汽重整相结合的方案,根据质量和能量守恒建立系统模型,并通过Simulink平台上的仿真案例验证系统的控制策略。在满功率运行时,氢电联产核电厂产氢率为6.99 t/h,发电量为529.7 MW。通过稳态验证和引入扰动时的暂态仿真,证明了核电厂在不同功率水平和暂态状态下的运行稳定性。所提控制方案为进一步研究包含核电厂、制氢系统和间歇性可再生能源的混合能源系统的发展奠定了基础。

Hydrogen cogeneration utilizing nuclear energy has received increasing attention in recent years.The modular high temperature gas⁃cooled reactor(MHTGR)is a small modular reactor with inherent safety advantages.Its nuclear steam supply system can provide high temperature steam at about 570℃.A coordinated control scheme for a hydrogen cogeneration nuclear power plant is proposed.A scheme combining six high temperature gas⁃cooled reactor nuclear steam supply modules with methane steam reforming is adopted to model the system based on mass and energy conservation,and the control strategy of the system is verified by simulation cases on the Simulink platform.During full power operation,the hydrogen production rate of the hydrogen cogeneration nuclear power plant is 6.99 t/h and the power generation capacity is 529.7 MW.The operational stability of the nuclear power plant at different power levels and transient states is demonstrated through steady state validation and transient simulation when perturbations are introduced.The proposed control scheme lays the foundation for further research on the development of a hybrid energy system incorporating a nuclear power plant,a hydrogen production system and intermittent renewable energy sources.