【摘要】 为了进一步深入掌握10MW高温气冷堆核动力系统的动态特性,以满足控制系统分析设计的需要,在其核岛系统动态模型的基础上补充了透平-发电系统模型,形成了HTR-10核动力系统的动态模型。利用此模型重点研究了当控制棒引入阶跃反应性扰动时系统主要参量的响应过程。对产生的震荡过程进行了深入的分析。结果表明:燃料温度变化相对于功率的变化缓慢且滞后,燃料温度反应性负反馈不能及时抑制功率的变化是形成系统参量产生衰减振荡的主要原因。更多还原

【Abstract】 In order to not only know 10 MW High Temperature Gas Cooled Reactor (HTR-10) nuclear power system’s dynamic character more deeply but also to satisfy requirements of control system’s design and analysis, the dynamic model of HTR-10 nuclear power system is established on the basis of dynamic model of HTR-10 nuclear system, which supplies turbine and generate electricity system model. Using this model, system’s main variables’ dynamic processes are simulated when control rod takes step reactivity disturb. The concussive progresses which is caused by reactivity disturb are analyzed. The results indicate that fuel temperature changing more slowly than nuclear power makes reactivity negative feedback not to restrain power changing, and then power concussive progress comes to being.更多还原