西安脉冲反应堆半实物仿真系统设计研究

为了给在建中的西安脉冲堆数字化仪表与控制系统提供调试用模拟信号源、验证功率调节方法以及人员培训等，研制了一套西安脉冲反应堆半实物仿真系统。提出了半实物仿真系统的设计思想，设计了系统框架。改进了堆芯仿真物理模型，使用MATLAB编制了堆芯实时仿真程序。采用组态王软件编制了人机界面，采用可编程控制器S7-200进行棒位控制和棒位测量。研制了控制棒驱动机构模拟件、信号发生器和手动操作盘等多个硬件设备，建立了系统内部的通讯。在该半实物仿真系统上模拟了升、降控制棒的功率变化和发射脉冲后的脉冲参数，与堆上实验结果符合较好，测量了信号发生器的输出信号，与预期一致。结果表明，该半实物仿真系统能够实现设计目的且性能良好。 

Study on Design of Semi-Physical Simulation System for Xi’an Pulsed Reactor

A semi-physical simulation system of Xi’an Pulsed Reactor is developed for the purpose of providing the analog signal source, verifying the power regulation method and personnel training for the digital instrument and control system of Xi’an pulse reactor under construction. The design philosophy of semi-physical simulation system is proposed and the system frame is presented. The core physical simulation model is improved and the real-time core simulation program is coded by MATLAB. The human-machine interface is programmed by the software Kingview, and the rod control and rod position measurement are carried out by programmable controller S7-200. A series of hardware equipments, including the control rod driving mechanism simulator, the signal generator and the manual operation board, are developed. And the internal communication of the system is established. The change of the core power when the control rod is raised or lowered, and the pulse parameters after the pulsed rod is emitted are simulated with the semi-physical simulation system. The results are in good agreement with the experimental data on the reactor. The output of the signal generator is measured and the consequence is in accordance with the expectation. It is shown that the semi-physical simulation system can realize the design purpose and has good performance.