堆芯定期物理实验优化

Optimization of periodical physical flux map test

利用SOPHORA系统,从理论上分析了长时间RPN11物理实验间隔的可行性。通过修改中广核自主研发的通量图处理软件MAPLE和现场物理实验处理软件HOLLY等耦合软件的理论模型及开发内嵌的单点标定方法等,可以减少循环内定期RPN12物理实验的实施频率,而不影响仪控系统相关标定系数的精度。对RPN11和RPN12物理实验测量过程的敏感性分析结果表明,延长定期RPN11实验的时间间隔和取消部分RPN12实验在原理上是可行的。

The optimization of the core periodical physical flux map test could be done using the SOPHORA on-line core monitoring system developed by China General Nuclear Power Group. This system can perform the calculation of 3D online moni- toring, core operation analysis in depth, core subsequent state simulation and prediction, the core operation strategy generation and optimization, and so on. Combining on-line theoretical calculation and instrument measurement, SOPHORA can get the best estimated measured power distribution. By coupling the self-reliant flux map processing code MAPLE and the physics experiment processing code HOLLY, one can analyse the feasibility of delay of RPN11 test interval. A single point ex-eore calibration method has been developed in SOPHORA, which can reduce the frequency of carrying out RPN12 test. The results of sensitivity study of RPN11 and RPN12 test measurement process show that it is possible to extend the time interval of RPNll test and to cancel some of the RPN12 test experiment.