控制棒驱动机构响应时间测试与数据分析  

Test and Data Analysis of Response Time of Control Rod Drive Mechanism

作　　者：蒋学俊 后接[1] 李琴 魏永波[1] 赖伟[1] Jiang Xuejun;Hou Jie;Li Qin;Wei Yongbo;Lai Wei(Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai,201800,China;University of Chinese Academy of Sciences,Beijing,100049,China)

机构地区：[1]中国科学院上海应用物理研究所,上海201800 [2]中国科学院大学,北京100049

出　　处：《核动力工程》2022年第1期141-147,共7页Nuclear Power Engineering

基　　金：中国科学院战略性先导科技专项资助项目(No.XDA02001005)。

摘　　要：针对控制棒驱动机构(CRDM)机电响应时间快且测试环境存在噪声干扰等问题,搭建了一套集PXI数据采集硬件平台和MATLAB数据分析的快速机电响应时间测试系统,能够实现对高频控制棒棒位实时信号的快速采集。利用滑动平均滤波和分区间拟合方法对棒位位移信号进行滤波和拟合,并利用快速傅里叶变换(FFT)频谱分析法验证去噪效果。结果表明,本套测试系统能被成功应用于钍基熔盐液态堆(TMSR-LF1)第一停堆系统CRDM的机电响应时间测试中,在可行性、可靠性和可用性等方面均满足CRDM机电响应时间测试要求。In this paper,a set of a fast test system for electromechanical response time,using PXI data acquisition platform and MATLAB for data analysis,is built to measure the fast response time of the control rod drive mechanism(CRDM)and filter out the noise interference in the test environment.This test system can collect the real-time and high-frequency position signals of the control rod quickly and uses the moving average filtering and segmental curve fitting to filter and fit the position data of the control rod.Besides,the test system uses the FFT spectrum analysis to verify the effect of signal denoising.This test system is used in the electromechanical response time test of the CRDM in the first scram system of the thorium molten salt reactor-liquid fuel 1(TMSR-LF1),demonstrating the test system in this study is consistent to the requirement of the CRDM electromechanical response time test on feasibility,reliability and applicability.

关 键 词：控制棒驱动机构(CRDM) 响应时间 数据采集分析 PXI MATLAB 

分 类 号：TL362[核科学技术—核技术及应用] TL426