反应堆核加热冷启动压力控制及超压问题仿真分析

Based on the control requirements of the reactor cold start-up process with nuclear heating, the automatic pressure control of reactor cold start-up with nuclear heating is studied in this paper, and the method for the system pressure automatic control in the process of cold start-up with nuclear heating are studied, and the automatic control method is designed and the control simulation verification is completed. At the same time, the problem of overpressure in cold start-up with water compaction state is simulated and analyzed. The interlock control methods to prevent overpressure accidents are proposed. The results show that, when the reactor power does not exceed a certain power level, the automatic pressure control method can realize the effective control of the reactor pressure during the cold start-up with nuclear heating.     

基于智能预测的反应堆功率调节研究

针对比例-积分（PI）控制需进一步提高控制性能的需求,采用单步预测控制方案结合在线T-S模糊辨识和粒子群优化算法设计反应堆功率控制器。该控制器在不同工况下的仿真结果表明,预测控制在调节响应速度、超调量等指标上效果优于原先采用的PI控制。      

Simulink与CATIA的耦合仿真研究

瞬态分析程序CATIA将控制系统用FORTRAN语言编写在源程序内,不易对其控制系统逻辑进行优化设计,限制了其应用范围。因此使用图形化控制系统建模工具Simulink模拟控制系统,并将CATIA与Simulink进行耦合仿真计算。计算结果表明,耦合计算结果与单独使用CATIA的计算结果基本一致,但是采用耦合计算的方式使控制系统的建模过程直观高效,同时该耦合计算方法易于扩展。      

反应堆核加热冷启动压力控制及超压问题仿真分析

基于反应堆核加热冷启动过程操纵和控制要求,开展了反应堆核加热冷启动过程压力自动控制方法研究,完成了系统压力自动控制方法设计与控制仿真验证;同时对冷启动水密实状态的超压问题进行了仿真分析,提出了防止超压事故的联锁控制方法。结果表明,当核功率不超过一定功率水平时,压力自动控制方法可实现反应堆核加热冷启动过程系统压力的有效控制。