核反应堆功率调节系统控制特性研究

Study on Characteristic of Reactor Power Regulating System

某新型研究堆采用新型燃料元件和堆芯结构,反应堆的控制特性缺乏基本数据,功率调节系统的设计无可借鉴经验。通过半实物仿真试验,在同一功率定值下分别引入阶跃和斜坡反应性扰动,考虑调节棒在不同位置的价值影响,采用PD控制方案研究功率调节系统的调节特性和控制效果,并对控制方案和PD参数进行比较和优化,为反应堆功率调节系统的设计和投入运行奠定基础。半实物仿真试验结果表明:采用同一组控制器参数,无法满足预定的控制要求。充分发挥数字化控制器的优点,在同一功率定值、不同棒位下,采用不同的控制器参数能较好地满足预定的控制指标和性能要求。

As a new type of research reactor with new fuel element and core structure, no experience can be used for the design and implementation of the power regulating system. Under same fixed power, steps disturbance and slope disturbance of reaction were leaded into semi object-based modeling and simulating, and count in the influence of rod operating area, the characteristic of the power regulation system is studied by using the PID control project. The reaults show that the same set of controller parame- ter can＇t satisfy for the preconcerted control request. Under the fixed power, the different controller parameter at the different rod positions can satisfied for the preconcerted control index and control performance.