Software Verification for LOCUST-SIM Based on HPR1000 Verification Simulator
-
摘要: LOCUST-SIM软件是中国广核集团有限公司（CGN）专为压水堆热工水力仿真开发的先进软件。本文利用线程池技术对LOCUST-SIM软件的计算流程进行优化，并在华龙一号（HPR1000）验证仿真机上开展了对LOCUST-SIM软件的验证，旨在评估其在模拟核电厂热工水力特性时的准确性和可靠性，以提升软件的计算效率。研究首先应用LOCUST-SIM软件对HPR1000验证仿真机的热工水力模型进行模拟，随后利用GENUS仿真平台及其集成的流网分析程序与仪控仿真工具，构建了基于核电厂运行原理的HPR1000验证仿真机模型，并模拟了3种事故的瞬态过程。将模拟结果与国际广泛使用的热工水力仿真程序RELAP5-3D的输出进行比较分析，比较结果表明LOCUST-SIM软件能够合理预测热工水力特性，并能显著提升计算速度，符合反应堆热工水力仿真的应用需求。
-
关键词:
- 华龙一号（HPR1000） /
- 热工水力仿真 /
- 线程池 /
- LOCUST-SIM /
- 软件验证
Abstract: LOCUST-SIM is an advanced thermo-hydraulic simulation code specifically developed by China General Nuclear Power Group (CGN) for PWR. In this paper, thread pool is used to optimize the calculation process of LOCUST-SIM, and the verification of the software is carried out on the HPR1000 verification simulator to evaluate its accuracy and reliability in the simulation of thermal hydraulic characteristics of nuclear power plants, so as to improve the computational efficiency of the software. The HPR1000 verification simulator was built by using the LOCUST-SIM to simulate the thermal hydraulic model and using the the simulation platform software GENUS with its integrated flow network analysis code and instrumentation & control simulation tools to simulate the process systems and control logic. The transient simulation results of three types of reactor accidents were compared and verified in depth with the results from internationally recognized thermal hydraulic simulation code RELAP5-3D. The verification results indicate that LOCUST-SIM can accurately predict the thermal-hydraulic characteristics while significantly improving computational speed, meeting the requirements for reactor thermal-hydraulic simulation applications.-
Key words:
- HPR1000 /
- Thermo-hydraulic simulation /
- Thread Pool /
- LOCUST-SIM /
- Software verification
-
图 2 HPR1000验证仿真机基本架构
Figure 2. Basic Architecture of the HPR1000 Verification Simulator
图 3 MB-LOCA下LOCUST-SIM软件与参考程序的关键参数对比
Figure 3. Comparison of Key Parameters between LOCUST-SIM Software and Reference Code under MB-LOCA
图 4 MSLB事故下LOCUST-SIM软件和参考程序关键参数对比
Figure 4. Comparison of Key Parameters between LOCUST-SIM Software and Reference Code under MSLB
图 5 主泵停运事故下LOCUST-SIM软件和参考程序关键参数对比
Figure 5. Comparison of Key Parameters between LOCUST-SIM Software and Reference Code under Main Pump Outage
表 1 MB-LOCA事件序列
Table 1. Event Sequence of MB-LOCA
事件 时间/s LOCUST-SIM 参考程序 环路一热管段中破口 200 200 稳压器低压停堆，汽轮机跳机 207 207 安注信号触发，高压安注注入，启动
辅助给水211 211 触发中压安注 560 566 完成计算（3600 s）物理耗时 728 1536 
下载: 导出CSV
表 2 主蒸汽管道破裂事件序列
Table 2. Event Sequence of MSLB
事件 时间/s LOCUST-SIM 参考程序 主蒸汽管道破裂 200 200 稳压器低压停堆，汽轮机跳机 226 226 安注信号触发，启动辅助给水，主泵停
运，安注启动237 241 完成计算（3600 s）物理耗时 658 1459
下载: 导出CSV
表 3 主泵停运事件序列
Table 3. Event Sequence of Main Pump Outage
事件 时间/s LOCUST-SIM 参考程序 3台主泵停运 200 200 稳压器低压停堆，汽轮机跳机 207 209 安注信号触发，启动辅助给水，安注启动 593 581 完成计算（3600 s）物理耗时 653 1327
下载: 导出CSV
-
[1] 徐财红. 两相流热工水力系统分析软件LOCUST-1.2开发概述[C]//中国核学会核反应堆热工流体力学分会第一届学术年会暨中核核反应堆热工水力技术重点实验室2021年学术年会暨国家能源压水反应堆技术研发(实验)中心学术交流会. 重庆: 中国核学会核反应堆热工流体力学分会,2021. [2] 林克军,张潇,骆邦其,等. 反应堆设计软件与仿真系统的耦合[J]. 系统仿真技术,2014, 10(3): 268-272. doi: 10.3969/j.issn.1673-1964.2014.03.016 [3] 许文朝,姜夏岚,秦治国. 全范围模拟机对核电站控制优化前的验证与预演[J]. 系统仿真技术,2020, 16(2): 118-122. doi: 10.3969/j.issn.1673-1964.2020.02.011 [4] 宋京凯,郭海红,姚祺峰,等. 蒸汽发生器工作过程建模及仿真分析[J]. 核科学与工程,2007, 27(1): 27-31. doi: 10.3321/j.issn:0258-0918.2007.01.006 [5] 刘余,张虹. RELAP5程序耦合接口的开发[J]. 核动力工程,2009, 30(6): 38-40, 45. -
计量
- 文章访问数: 4
- HTML全文浏览量: 1
- PDF下载量: 1
- 被引次数: 0
