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在配电自动化系统中,故障区段定位是核心内容.其主要作用是:当线路发生故障时,在最短时间内自动判断并切除故障所在的区段,恢复对非故障区段的供电,从而尽量减少故障影响的停电范围和停电时间.选择科学合理的故障区段定位模式,大大提高配电自动化系统的性能价格比及对供电可靠性的改善程度.当前的配电自动化故障区段定位手段主要是有信道模式、无信道模式以及两者相结合的混合模式三种.文章分析了配电网故障区段定位技术. 相似文献
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配电网网络化继电保护是就地保护和远方保护相结合,在避免配电系统再次受故障干扰的情况下,能够迅速完成故障自动识别、定位、故障自动隔离、网络重构直至恢复非故障区段供电。 相似文献
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目前,随着经济的发展,用户对供电可靠性提出更高的要求,因此,提高供电可靠性是供电部门的一项硬指标,需最大限度满足用户的要求。文中从供电可靠性重要性入手,分析了影响供电可靠性的三个主要因素:线路故障率及故障修复时间、非故障停电、用户密度和分布,针对影响因素提出4项提高供电可靠性的措施:建立可靠性管理制度、加强线路设备巡视和落实管理责任、完善配电网网架和缩小停电范围、应用配电自动化管理系统。 相似文献
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10千伏以下配电网中由于各种各样的原因,会发生故障从而影响对用户的供电.配电网故障处理的基本原理是将配电线路通过分段开关分割威各个供电区域.当某区域发生故障时,及时将分割该区域的开关跳开隔离故障,然后对非故障停电区域迅速恢复供电.避免了因线路出现故障而导致整条线路连续失电,减少了停电范围,提高了供电可靠性. 相似文献
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随着石油产业发展,对电量需求不断增加,但我国由于地理、气候等实际问题,油田电网配电线路在实际应用中故障较多,这不仅给实际生产带来不良影响,还造成了一定的经济损失。而故障定位系统能够准确地定位故障区段及故障类型,迅速实现检修、抢修,从而有利于提高油田电网供电的可靠性、高效性,从而提高油田电网的整体供电质量,提高经济效益。 相似文献
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朱其涛 《环球市场信息导报》2017,(1):120-120
2013年10月国网枣庄供电公司实现配电自动化全覆盖,配电自动化系统监控报警信息是配网调控人员有效监控配网的重要手段。监控报警干扰信息的大量上屏直接降低了监控质量和事故处理效率。尤其是当配电网出现故障、异常、操作等情况时,配电自动化系统在短时间内会发出大量监控信息,极易造成遗漏重要信息而威胁电网安全。为了实现从传统调度到智能调度的转变,枣庄公司以提高供电可靠性、改善供电质量、提升配网管理水平为目标,共累计投资4.9亿元,建成投运了珠海许继生产的配电自动化系统,已完成610条配电线路的智能化改造,其中安装配电自动化柱上开关7708台,环网柜388台,达到了配网智能监视预警、配网故障自愈控制的功能、实现了配网的经济优化运行。 相似文献
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作为供电设施的重要纽成部分之一的1OkV配网线路,安全运行是满足用电户用电质量的关键,如何才能提高1OkV配电网安全运行的可靠性,减少配电线路故障而造成停电事故的发生,是供电企业优质服务水平的重要依据。为此,供电企业只有在保障用电客户安全可靠用电的同时,必须对影响配电网供电可靠性的因素进行分析、研究,找出配电线路故障原因,采取合理有效的防范技术措施,才能预防配电线路故障造成的损失,从而提高企业供电安全、可靠运行的目的。 相似文献
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10kV配电网因其直接面向用户侧且运行环境复杂,在实际运行中线路跳闸或者单相接地故障多发。快速确定、隔离故障点,减小故障停电范围以及缩短故障停电时间,成为摆在10kV配电网运行维护人员面前的重要课题。本文结合典型故障案例介绍了故障指示器、馈线自动化开关等配电自动化设备在10kV配电网故障抢修处理过程中的应用及成效,并提出了一些具体改进性意见及建议。 相似文献
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The purpose of this research was to investigate the effects that user task load level has on the relationship between an individual's trust in and subsequent use of a system's automation. Military decision-makers trust and use information system automation to make many tactical judgments and decisions. In situations of information uncertainty (information warfare environments), decision-makers must remain aware of information reliability issues and temperate their use of system automation if necessary. An individual's task load may have an effect on his use of a system's automation in environments of information uncertainty.It was hypothesized that user task load will have a moderating effect on the positive relationship between system automation trust and use of system automation. Specifically, in situations of information uncertainty (low trust), high task load will have a negative effect on the relationship. To test this hypothesis, an experiment in a simulated command and control micro-world was conducted in which system automation trust and individual task load were manipulated. The findings from the experiment support the positive relationship between automation trust and automation use found in previous research and suggest that task load does have a negative effect on the positive relationship between automation trust and automation use. Experiment participant who incurred a higher task load exhibited an over-reliance on their automated information systems to assist them in their decision-making activities. Such an over-reliance can lead to vulnerabilities of deception and suggests the need for automated deception detection capabilities. 相似文献
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随着中国入世,国外自动化企业将加快抢滩中国市场的步伐,自动化行业将进一步面临市场的分割、融合、变迁和深化等变化,同时,由于技术和相关产业的高速发展,市场竞争日趋激烈,自动化产品价格呈大幅降低趋势,这无疑也是摆在自动化企业面前的巨大挑战。在巨大机遇与挑战并存面前,多数企业将面临一个重新认识环境和自我重新定位的过程。文章分析了我国电气自动化行业的改革与发展。 相似文献
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Web数据自动采集及其应用研究 总被引:1,自引:0,他引:1
如何在信息浩如烟海的互联网上准确获取并长期跟踪自己关注的内容,这个新的问题已经成为制约网络使用的重要因素之一。而Web数据自动采集旨在解决这个问题。文章从理论研究和应用技术的两个方面展开探讨。本文给出了一个自动采集的模型,设计了基于房地产业的自动采集系统,证明了自动采集的可行性与优点。同时也指出了其存在的局限于不足。 相似文献
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The recent development of an omnichannel business environment provides a seamless shopping experience throughout the customer journey. Although previous studies have identified the importance of rapid product delivery, consumers cannot evaluate delivery quality until it has arrived. This study argued that warehouse automation and retail channel brand characteristics lead to informative signals and to firms' higher sales in the omnichannel context. By analyzing panel data from the Japanese retail market, we tested the effects of warehouse automation and the moderating effects of omnichannel, online, and offline brand offerings on the effectiveness of the warehouse automation signal. Results showed that warehouse automation signaling positively affects firms’ sales and has a positive interaction effect with omnichannel offerings. 相似文献
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《Business Horizons》2018,61(6):823-832
Recent advancements in robotics, artificial intelligence, machine learning, and sensors now enable machines to automate activities that once seemed safe from disruption—including tasks that rely on higher-level thinking, learning, tacit judgment, emotion sensing, and even disease detection. Despite these advancements, the ethical issues of business automation and artificial intelligence—and who will be affected and how—are less understood. In this article, we clarify and assess the cultural and ethical implications of business automation for stakeholders ranging from laborers to nations. We define business automation and introduce a novel framework that integrates stakeholder theory and social contracts theory. By integrating these theoretical models, our framework identifies the ethical implications of business automation, highlights best practices, offers recommendations, and uncovers areas for future research. Our discussion invites firms, policymakers, and researchers to consider the ethical implications of business automation and artificial intelligence when approaching these burgeoning and potentially disruptive business practices. 相似文献
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本文说明办公与管理自动化技术概貌,它的层次划分,实现方法和发展动态.最后介绍成都某企业办公与管理自动化系统发展规划. 相似文献
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本文阐述了航天测控地面站监控自动化的作用、特点和技术要求,并提出了总体设计的原则和方法。重点介绍了监控自动化微机网的功能设计、配置设计和接口设计及其技术实现的难点和对策。 相似文献