Error Compensation Method of Advanced Digital Reactivity Computer Measuring with Range Spanning
-
摘要: 动态刻度控制棒试验方法(DCRM)的发明极大地减小了核电厂控制棒价值测量试验的难度,压缩了试验时间。动态刻棒试验需要使用先进数字式反应性仪(ADRC)。与传统反应性仪使用环境不同,动态刻棒试验时,反应性仪需实现多量程测量以满足探测器电流快速下降多个量级的需求。进行反应性仪量程切换时产生的测量值的误差会对反应性测量结果产生影响。本文通过分析动态刻棒过程中探测器电流曲线特征,提出基于曲线拟合进行测量误差补偿的方法,核电厂试验数据表明,应用此种方法可以将反应性仪量程切换带来的计算最大误差由48%减小到2.0%。Abstract: Dynamic control rod reactivity measurement（DCRM） technique has been developed, and it can reduce the difficulties and shorten the time for the zero power physics test at PWRs. Advanced Digital Reactivity Computer（ADRC） is used in the process of DCRM. Different from the traditional using, the reactivity meter will conduct the multi-range measurement to satisfy the requirement for multiple ranges in the quick decreasing of the current. Error occurred in the range change has effects on the result of reactivity measurement. This paper analyzes the characteristics of the detector current curve in DCRM, and presents the error compensation method with curve-fitting. Test results in nuclear plants show that the method can decrease the error in the range change from 48% to 2%.
-
Key words:
- DCRM /
- Reactivity measurement /
- Range change
-
计量
- 文章访问数: 13
- HTML全文浏览量: 5
- PDF下载量: 0
- 被引次数: 0
下载:
