共查询到20条相似文献,搜索用时 78 毫秒
1.
为了保障电力监控网络的安全性,本文根据无线局域网在电力监控网络中的应用方向和存在的安全威胁,设计了基于WLAN的电力监控网络智能化安全防护方案,建立安全防护网络架构后,介绍了接入认证、漏洞扫描、入侵防御和智能分析等安全防护机制的工作原理。该安全防护方案实施后,能够进一步提高电力监控系统的机密性,增强用户和电力监控系统间的信息交互,实现电力监控网络的主动防御。 相似文献
2.
3.
4.
5.
6.
7.
8.
基于电能质量实时监测系统的电压暂降研究 总被引:1,自引:7,他引:1
电压暂降是当前业界所面临的代价最大的电能质量问题之一,针对所研究的配电网,建立了可用于监测电压暂降的分布式电能质量在线监测系统。介绍了监测系统的构成、性能参数及监测点的配置方法。应用UNI-PEDE对监测到的各次电压暂降的下凹深度及持续时间进行了统计分析,并根据监测及配电网运行记录对电压暂降发生原因作了分析。研究了电压暂降对研究区域内电力用户的影响,用SARFI-ITIC图对影响用户的电压暂降和短时间中断事件进行了分析。研究结果有助于进一步改善电压暂降并为用户侧解决方案提供依据。 相似文献
9.
随着信息化水平的不断发展,泛在电力物联网的建设提上日程,这对提升变电站电力设备在线监测水平,推动智能电网发展具有重要的指导意义。对基于物联网的电力设备状态监测系统进行了研究,概括了泛在电力物联网在线监测系统的体系结构和特征。根据变电站电力设备状态在线监测的需求,探索研究了红外热成像监测子系统和变电站环境监测子系统的系统构成,实现了对电力设备状态监测系统的优化设计。指导变电站电力设备状态监测系统的规划、设计和建设,具有十分广阔的应用前景。 相似文献
10.
Il-Yop Chung Dong-Jun Won Joong-Moon Kim Seon-Ju Ahn Seung-Il Moon 《Electric Power Systems Research》2007
This paper presents a network-based power quality (PQ) diagnosis system. In accordance with the IT development, PQ monitoring networks are prevalent in many existing systems because such networks can provide system-wide insights to users. The developed PQ management system of this paper also consists of network-based devices such as PQ monitoring systems (PQMS), the PQ Server, and the PQ diagnosis system (PQDS). PQMSs measure power quality data at various points in the power systems and send them to the PQ Server through the Ethernet. The PQDS diagnoses the PQ data stored in the PQ Server in order to provide various diagnosis functions to the users. However, in many existing PQ monitoring networks, it is still difficult to pin-point the event location and to find appropriate solutions. The developed PQDS focuses on identifying power quality events, especially on finding the fault location and the type of faults as well as various statistical and stochastic analyses. Therefore, it can help users cope well with power quality problems with the right measure in the right place. The PQ diagnosis system also provides event trend diagnosis, stochastic diagnosis, and PQ indexing functions for user convenience. 相似文献
11.
静止无功补偿器光电触发与监测系统设计与仿真 总被引:3,自引:0,他引:3
电网互联的发展和负荷密度的增加,都迫切要求提高电力系统运行的稳定性和供电的电能质量。随着电力电子技术的日益发展,静止无功补偿器(SVC)在该领域发挥了巨大的作用。文中对TCR FC型SVC样机的中的光电触发与监测系统进行了详细的介绍,阐述了晶闸管阀光电触发与监测系统基本要求,重点介绍了晶闸管电子板(TE)和阀基电子设备(VBE)的工作原理和具体实现。通过对它们的核心技术———取能回路与脉冲编码生成电路的说明,讨论了影响RC取能回路正常工作的各种因素,分析了电路的工作时序。在此基础上,分别对晶闸管电子板和阀基电子设备进行仿真研究,设计出一套符合静止无功补偿器(SVC)运行要求的触发与监测系统,运行试验的结果表明,样机设计效果良好。 相似文献
12.
储能电站监控系统是储能电站的核心部分,实现了对储能站内电池、电池管理系统、变流器、配电等设备的信息采集、处理、监视、控制、运行管理等功能。储能监控系统的体系架构直接影响储能电站对电网支撑作用的功效。首先总结了当前主流的三种储能监控系统架构技术特点。接着从层次架构、应用功能、性能指标、设备数量、信息交互、运维便捷等方面进行了全方位比对分析。针对储能监控存在的问题,提出储能电站协调控制解决方案。对其中涉及的关键技术进行了分析,包含主备协调器切换机制、信息建模、一次调频及动态无功调节等。最后在实验室搭建了储能协调控制测试环境,经实验验证了储能协调控制的可行性。 相似文献
13.
针对目前没有颁布有关电缆隧道监控专用规范的情况,探讨了电力电缆隧道监控系统的设置原则,并对本文推荐的电力电缆隧道监控系统及其4个子系统:火灾报警及消防联动系统、电力电缆与环境温度监测系统、气体监测系统、视频监控及红外防盗系统的配置分别进行了讨论,可为电力电缆隧道的监控系统设计提供参考。 相似文献
14.
15.
16.
V. G. Petrosyan E. A. Yeghoyan A. D. Grigoryan A. P. Petrosyan M. R. Movsisyan 《Thermal Engineering》2018,65(2):79-87
One of the main objectives of severe accident management at a nuclear power plant is to protect the integrity of the containment, for which the most serious threat is possible ignition of the generated hydrogen. There should be a monitoring system providing information support of NPP personnel, ensuring data on the current state of a containment gaseous environment and trends in its composition changes. Monitoring systems’ requisite characteristics definition issues are considered by the example of a particular power unit. Major characteristics important for proper information support are discussed. Some features of progression of severe accident scenarios at considered power unit are described and a possible influence of the hydrogen concentration monitoring system performance on the information support reliability in a severe accident is analyzed. The analysis results show that the following technical characteristics of the combustible gas monitoring systems are important for the proper information support of NPP personnel in the event of a severe accident at a nuclear power plant: measured parameters, measuring ranges and errors, update rate, minimum detectable concentration of combustible gas, monitoring reference points, environmental qualification parameters of the system components. For NPP power units with WWER-440/270 (230) type reactors, which have a relatively small containment volume, the update period for measurement results is a critical characteristic of the containment combustible gas monitoring system, and the choice of monitoring reference points should be focused not so much on the definition of places of possible hydrogen pockets but rather on the definition of places of a possible combustible mixture formation. It may be necessary for the above-mentioned power units to include in the emergency operating procedures measures aimed at a timely heat removal reduction from the containment environment if there are signs of a severe accident phase approaching to prevent a combustible mixture formation in the containment. 相似文献
17.
浙赣电气化铁路江西段开放式电能质量监测系统的开发与应用 总被引:3,自引:0,他引:3
针对浙赣电气化铁路江西段对电能质量运行管理的要求,研究开发了开放式电能质量综合监测系统。系统软件采用模型驱动架构的设计思想,遵循IEC 61850标准进行电能质量对象建模,利用电能质量数据集中器实现子站系统异构设备的接入,解决了现有电能质量监测系统在开放性、标准化、自动化等方面存在的技术问题,实现了对浙赣电气化铁路沿线江西段14个子站不同厂家与不同型号产品的接入和电能质量的实时全局监测,为电力和铁路部门对电气化铁路电能质量的监控分析和治理提供了良好的平台。 相似文献
18.
19.
介绍了电能质量监测技术的最新发展趋势,并以其作为出发点构建了基于TI公司32位浮点DSP芯片TMS320VC33和ATm ega128L单片机的双CPU结构电能质量监测装置。实验证明该设计方案不仅成功地满足了系统的高运算量,高实时性的要求,而且系统的改进和升级方便,易于功能扩展。 相似文献