共查询到20条相似文献,搜索用时 906 毫秒
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运行规程是指导核电厂运行人员对机组系统进行操作监护、处理各种故障及事故的指导文件。示范快堆采用数字化主控室,操作界面有大量实时参数显示。执行规程时,操作员需及时、准确地调取对应的画面。示范快堆对运行规程进行计算机化设计,将规程的步骤与相关操作画面链接,辅助操作员快速定位,有利于提高规程执行的效率,减轻操作员负担,降低人因失误。计算机化运行规程内容需与生效的纸质规程保持一致,这对规程计算机化开发的质量和效率提出了更高要求。示范快堆基于计算机化实施流程开发了一种规程编辑器,有助于保证纸质规程与计算机化运行规程的同步性和一致性,使计算机化运行规程有效应用于示范快堆。 相似文献
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分析了发展高温气冷堆核电站的必要性,介绍了高温气冷堆发电技术的特点、现状和我国高温气冷堆核电站示范工程的建设情况,提出了充分发挥高温气冷堆发电技术特点、进一步开发高温气冷堆核电站的设想,认为条件成熟情况下,高温气冷堆核电站将有很大的商业推广价值。 相似文献
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中国积极推进核电建设的战略方针对本国核电标准体系的建设提出了迫切的要求。在高温气冷堆核电站被列为国家中长期科技发展规划中的重大专项的背景下,文章以高温气冷堆技术为主体,在阐述高温气冷堆核电站标准化建设的意义和必要性的基础上,介绍了我国近期开展的高温气冷堆核电站标准体系的建立,以及后续工作的初步设想。 相似文献
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核电厂应急操作规程的现状及其发展趋势 总被引:1,自引:1,他引:0
本文叙述了核电厂应急操作规程的现状及不足之处,介绍了世界上在这方面的发展趋势:以基于征兆的应急操作规程来补充或替代基于事件的应急操作规程;采用现代微机数据处理技术改进规程的编制、修改、打印和显示;利用人工智能技术最终开发出核电厂运行专家系统,以帮助运行人员处理事故,减少人因错误。 相似文献
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地震导致丧失厂外电是核电厂地震情况下的典型始发事件。本研究使用地震概率安全分析方法,以高温气冷堆为研究对象,得到其在地震丧失厂外电事故下的风险水平。研究范围包括分析地震导致丧失厂外电的事故发展情景分析,筛选地震设备清单并结合现场巡访进行调整,建立地震导致丧失厂外电的风险评价模型,并对超过高温气冷堆风险接受准则剂量(概率安全目标)的放射性释放的频率结果进行了间隔分析、割集分析和重要度分析。本文工作可为高温气冷堆的地震概率安全分析在方法实施、建模假设、过程分析等方面提供有益的参考。 相似文献
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核动力装置结构复杂、运行参数多且耦合程度高,在异常运行工况时,运行参数之间存在极其复杂的非线性关系。采用人工方式进行故障诊断难度较大,亟需一种能高效识别异常运行工况类型的智能技术。概率神经网络(PNN)具有良好的非线性映射功能,适用于核动力装置多参数、强耦合情况下的异常运行工况识别。本文选取6种核动力装置异常运行工况,依托核动力装置事故分析平台进行了模拟计算并提取了特征参数。分别采用PNN与BP神经网络方法,在MATLAB环境中建立了异常运行工况识别模型,并进行了验证。结果表明,基于PNN的异常运行工况识别方法有效,且较传统BP神经网络方法更准确、快速。 相似文献
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Rafael Gomes da Costa Antônio Carlos de Abreu Mol Paulo Victor R. de Carvalho Celso Marcelo Franklin Lapa 《Annals of Nuclear Energy》2011
Transient identification in nuclear power plants (NPP) is often a computational very hard task and may involve a great amount of human cognition. The early identification of unexpected departures from steady state behavior is an essential step for the operation, control and accident management in NPPs. The bases for the transient identification relay on the evidence that different system faults and anomalies lead to different pattern evolution in the involved process variables. During an abnormal event, the operator must monitor a great amount of information from the instruments that represents a specific type of event. Recently, several works have been developed for transient identification. These works frequently present a non reliable response, using the “don´t know” as the system output. In this work, we investigate the possibility of using a Neuro-Fuzzy modeling tool for efficient transient identification, aiming to helping the operator crew to take decisions relative to the procedure to be followed in situations of accidents/transients at NPPs. The proposed system uses artificial neural networks (ANN) as first level transient diagnostic. After the ANN has done the preliminary transient type identification, a fuzzy-logic system analyzes the results emitting reliability degree of it. A validation of this identification system was made at the three loops Pressurized Water Reactor (PWR) simulator of the Human-System Interface Laboratory (LABIHS) of the Nuclear Engineering Institute (IEN/CNEN/Brazil). The obtained results show the potential of this new transient identification system to be used in an operational NPP in order to assist the operators to take decisions during transients/accidents. 相似文献
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The main circulation pumps are key components of nuclear power plants with pressurized water reactors (PWRs), because the availability of the main circulation pumps has a direct influence on the availability and electrical output of the entire plant. The on-line automatic vibration control system ASMAS was developed for early failure detection during the normal operation of the main circulation pumps in order to avoid unexpected outages and to establish the possibility of preventive maintenance of the pumps. This system is permanently and successfully operating in three German 1300 MWel NPP's with PWR and has been successfully tested in a 350 MWel NPP with a PWR. 相似文献
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