快堆冷却剂出口温度的自抗扰控制

为提高快堆控制系统的瞬态响应速度，降低控制器的超调量及稳态误差，设计了快堆冷却剂出口温度的线性自抗扰控制器。基于快堆的中子动力学方程、反应性方程和堆芯热传输方程，推导出了用于线性自抗扰控制器设计的带总扰动项的二阶模型。利用所得二阶模型的参数，确定了带模型信息的线性扩展状态观测器的部分参数。最后，在MATLAB环境下对控制器模型进行了仿真并加入系统模型信息。仿真结果表明，所设计的控制器具有良好的性能。相比于以冷却剂流量变化量为控制量的控制器，以冷却剂流量作为控制量的控制器具有更快的响应速度、更小的超调量、更好的抗干扰能力。

Active Disturbance Rejection Control for Fast Reactor Coolant Outlet Temperature

In order to improve the transient response speed of fast reactor control system and reduce the overshoot and steady-state error of the controller, a linear active disturbance rejection controller for the coolant outlet temperature of fast reactor was designed. Based on the point kinetics equation, fast reactor reactivity equation and thermal hydraulics model of the reactor core, the second-order equation with total disturbance applied to the design of linear active disturbance rejection controller was derived. Using the parameters of the second-order equation, some parameters of the linear extended state observer (LESO) with model information were determined. Finally, the controller model was simulated in MATLAB environment. The simulation results show that the designed controller has a good performance. Compared with the controller taking the coolant flow variation as the input, the controller taking coolant flow rate as the input has faster response speed, smaller overshoot and better disturbance rejection ability.