共查询到19条相似文献,搜索用时 109 毫秒
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介绍了目前联合培训仿真系统的技术要求:培训教案的全面性、培训过程的一致性、培训操作的分布性、电网变化的真实性及培训过程的实时性。提出了两种技术实现方案:分散电网仿真的联网方案和集中式的统一仿真方案。结合西北电网调度员培训仿真系统(DTS)以及电力调度数据网(SGDnet)互联现状,论述了适合西北750kV电网的联合培训仿真系统的实现方案。 相似文献
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介绍了目前联合培训仿真系统的技术要求:培训教案的全面性、培训过程的一致性、培训操作的分布性、电网变化的真实性及培训过程的实时性。提出了两种技术实现方案:分散电网仿真的联网方案和集中式的统一仿真方案。结合西北电网调度员培训仿真系统(DTS)以及电力调度数据网(SGDnet)互联现状,论述了适合西北750kV电网的联合培训仿真系统的实现方案。 相似文献
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计算机仿真技术在制造系统规划设计及运行中的应用 总被引:2,自引:0,他引:2
本文概述了计算机仿真技术在制造系统的规划设计及运行中的应用情况,介绍了制造系统中计算机仿真建模的几种方法,对国内外用于制造系统的建模与仿真软件作了简要介绍,并展望了仿真技术在我国制造业中的应用前景。 相似文献
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本文根据结构动态系统状态空间敏感度分析提出了一种内燃机轴系扭振特性修改的优化方法,并介绍了一种动态特性优化计算和重分析的计算机通用程序,文中附有曲轴轴系扭振特性优化分析的结论以及计算机仿真和实测分析的实例。 相似文献
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针对当前变电站巡检作业中所面临的现场作业安全和人员到位情况管控难等问题,文章提出了一种基于北斗定位的变电站作业人员行为安全管控系统.该系统首先利用先进的三维激光扫描技术对变电站进行三维建模,构建三维数字地图,再利用超宽带UWB+北斗的一体化定位技术,实现变电站作业人员室内外高精度定位,最后将智能手环、北斗定位终端与电力... 相似文献
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Smart grid is a power grid consists of extensive monitoring systems which deal with the monitoring of attributes such as current, voltage, power, and energy at distribution transformers, substations transformers, distribution switching devices and smart meters. Smart grid with advanced communication technologies can be used for several purposes such as efficiency and reliability improvement. IEC 61850 is the core standard in the smart grid domain for distribution and substation automation. This paper introduces a vision of modern substation and distribution systems using the IEC 61850. Network operators mainly assume that the modern substation and distribution systems based on the IEC 61850 are reliable for a long-time of operation. However, similar to any other systems, the implemented IEC 61850 might fail because of the operational failures or aging failures. This paper proposes a novel method for reliability evaluation of modern substation and distribution systems. A typical IEC 61850 based distribution and substation system is developed and analyzed using the proposed method. The fault tree analysis (FTA) is used to quantify the reliability of the system. The technique is implemented and demonstrated on the Roy Billinton test system (RBTS). The analysis is further extended on a 400/63 kV substation with a breaker- and-a-half configuration. In addition, the technique proves to be robust under different operations. The results verify the feasibility and applicability of the proposed method. 相似文献
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《Power and Energy Magazine, IEEE》2006,4(6):56-60
A number of independent system operators (ISO) and utilities have begun to explore the possibility of reusing existing relay-class current transformers (CT) for high accuracy metering applications. However, this would require the development of a new CT reclassification system. A key component of the system is an innovative, highly accurate reference current sensor that can be easily deployed using live-line methods in a high-voltage environment. The system first analyzes the accuracy of an existing CT, calculating its characteristic performance. Corresponding error-correction parameters are then derived and programmed into an advanced revenue meter, enabling dynamic accuracy reclassification of the existing CT while operational in the field. The new system has been proven in a live, operational high-voltage environment at a 138-kV utility substation 相似文献
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井下变电所作为矿井的动力枢纽,是保障整个矿井生产有效开展的关键前提。针对变电所运行构建完善且现代化的监测监控系统,为变电所的持续高质运转提供保障,对矿井长久发展有着积极意义。以此为着手点,就井下变电所监测监控系统设计开展分析探究。在分析整体架构设计的基础上,分别对系统的硬件设计和软件设计进行了分析,希望能够为矿井生产的更加高质、安全开展提供坚实保障。 相似文献
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基于区间数的多指标灰靶模型在智能变电站综合评价中的应用 总被引:1,自引:0,他引:1
鉴于智能变电站评价是推进新一代智能变电站乃至电网建设亟待解决的问题,借鉴智能电网示范工程的评估体系,首先建立远期智能变电站建设方案的评价指标体系框架,然后针对其评价指标值的不确定性特性,提出一种基于区间数的多指标灰靶模型。利用区间数理论给出智能变电站评价指标的区间值,以此作为评价的模拟决策数据,再利用多指标灰靶模型对各个模拟建设方案进行综合评价。将提出的模型应用于变电站建设方案评价比选,得到的结论较好地验证了该模型的可用性。 相似文献
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《Power and Energy Magazine, IEEE》2007,5(3):32-44
This paper presents to help appreciate how much substation automation has become a part of the lexicon. The concept it represents is realizing all the benefits that digital technology can bring to the substation. The Michigan substation is meant to realize the organic implementation of automation technologies. It reflects how a system would evolve around these technologies as opposed to having substation automation added to a system. This substation was an attempt at realizing the vision of automation 相似文献
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随着发电站和变电站自动化程度的提高,为变电站和发电站提供通讯、调度、控制、照明等动力的直流系统显得尤为重要,直流系统为电力控制和操作提供重要的电力保障,是电力系统控制、保护的基本保障。如果直流电源系统供电不可靠失电,将导致变电站所有通讯、调度、控制、保护、照明处于瘫痪状态,无法保证变电站的安全稳定运行,在变电站站用电源事故停电情况下,整个电站失去可控性和保护,极易造成电网事故,给电网安全稳定运行带来潜在风险。直流电源是变电站的心脏,电池是电源的最后屏障,目前国网公司暂无磷酸铁锂电池的生产能力。 相似文献