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变电站中直流系统存在的环网问题及解决方法 被引量:7
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作者 闫晓伟 《科技创新与应用》 2016年第26期205-205,共1页
近年来,随着电网的不断发展,直流电源作为电力系统重要组成部分在继电保护及电网安全控制及管理中具重要作用,目前,由于多因素影响,各变电站二次设备直流系统内所存在的问题日渐凸显。故,文章主要以变电站直流系统为研究主体,探究系统... 近年来,随着电网的不断发展,直流电源作为电力系统重要组成部分在继电保护及电网安全控制及管理中具重要作用,目前,由于多因素影响,各变电站二次设备直流系统内所存在的问题日渐凸显。故,文章主要以变电站直流系统为研究主体,探究系统所存在的环网问题并提出相对应的解决措施,不断促进电网长期安全运行。 展开更多
关键词 变电站 直流系统 环网问题 措施
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变电站中直流系统存在的环网问题及解决方法 被引量:4
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作者 黄勇 《中国新技术新产品》 2016年第11期75-75,共1页
电能一直在国民的生产、生活中起到极其重要的保障作用,这对我国社会发展和经济增长起到了推动作用。为满足不断增长的用电需求,电力系统建设得到了广泛发展,然而,在电网实际运行中有很多系统故障问题时有发生,严重阻碍了整个电力系统... 电能一直在国民的生产、生活中起到极其重要的保障作用,这对我国社会发展和经济增长起到了推动作用。为满足不断增长的用电需求,电力系统建设得到了广泛发展,然而,在电网实际运行中有很多系统故障问题时有发生,严重阻碍了整个电力系统的高效运转。本文对变电站直流系统中的环网问题展开了探讨,并提出了相应的解决方法。 展开更多
关键词 变电站 直流系统 环网问题 解决办法
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变电站直流系统环网问题分析与对策探究 被引量:3
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作者 潘祖鸿 朱海松 赵良涛 《山东工业技术》 2014年第17期125-125,共1页
随着用电需求的不断上升,电力系统得到了深入而广泛的应用,对应的电力系统故障问题也逐渐增多,变电站直流系统故障成为制约电力系统高效运转的一大问题,其中变电站直流系统环网问题成为一大问题,必须找到并分析出导致直流系统环网问题... 随着用电需求的不断上升,电力系统得到了深入而广泛的应用,对应的电力系统故障问题也逐渐增多,变电站直流系统故障成为制约电力系统高效运转的一大问题,其中变电站直流系统环网问题成为一大问题,必须找到并分析出导致直流系统环网问题出现的原因,从而探究出解决措施。本文分析了两类直流系统环网问题,具体分析并指出了每类环网问题的特征与产生的原因,以及对应的解决对策。 展开更多
关键词 变电站 直流系统 环网问题 分析与对策
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变电站中直流系统存在的环网问题及解决方法探究 被引量:1
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作者 牟航航 段程煜 +2 位作者 王俊 周宇 李义 《电力系统装备》 2019年第13期138-139,共2页
在我国科学技术以及人们生活水平不断提升的基础上,全社会对电力的需求量越来越大。电力对人们的生活质量、人身安全以及工作效率都有着重要的影响,人们也逐渐认识到电网安全管理的重要性,并且从各个方面都加大了对电网的安全管理,直流... 在我国科学技术以及人们生活水平不断提升的基础上,全社会对电力的需求量越来越大。电力对人们的生活质量、人身安全以及工作效率都有着重要的影响,人们也逐渐认识到电网安全管理的重要性,并且从各个方面都加大了对电网的安全管理,直流系统作为变电站内的重要设备,其安全运行引起各方关注。 展开更多
关键词 变电站 直流系统 环网问题 解决方式
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A Simulation Environment for Intrusion Detection System in IEC 61850 Based Substation Automation System
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作者 YooJin Kwon Seongho Ju Yonghun Lim 《Computer Technology and Application》 2013年第7期335-340,共6页
Greater complexity and interconnectivity across systems embracing electrical power technologies has meant that cyber-security issues have attracted significant attention. In this paper a simulation environment for int... Greater complexity and interconnectivity across systems embracing electrical power technologies has meant that cyber-security issues have attracted significant attention. In this paper a simulation environment for intrusion detection system in IEC 61850 standard-based substation automation system is provided to test simulated attacks on IEDs (intelligent electronic devices). Intrusion detection is the process of detecting malicious attacker, so it is an effective and mature security mechanism to protect electrical facility. However, it is not harnessed when securing IEC 61850 automated substation. To prove the detection capability of the system testing environment was developed to analyze and test attacks simulated with different test cases. It shows that the simulation environment works accordingly to various network traffic scenarios and eventually proves the functionality of intrusion detection system to be later deployed in the real IEC 61850 based substation automation system site. 展开更多
关键词 IEC 61850 substation automation system simulation environment.
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Construction of Three-dimensional power security Defense System Based on T-S Model Fuzzy Neural Network
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作者 Zeyu SUN 《International Journal of Technology Management》 2015年第5期105-108,共4页
With the development of information networks, the problem of power security has increasingly caused many attention of people, but the simple power security defense system has been difficult to meet the current complex... With the development of information networks, the problem of power security has increasingly caused many attention of people, but the simple power security defense system has been difficult to meet the current complex network environment. Aiming at this situation, by using the method of T-S fuzzy neural network model to analyze the characteristics of the data transmission in network, it has obtained corresponding threat information. By processing these threat information, it completes the construction of three-dimensional power security defense system. The paper carries on the corresponding data training methods by using T-shirt model fuzzy neural network, which has certain reference significance for the data analysis of other similar fields. At the same time, the study of building on the three-dimensional power security defense system aims to provide a theoretical reference for solving the security defense of the current complex network environment. 展开更多
关键词 Information network power security Neural network Network environment Data FEATURE Threat information
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A Web Service Framework for Environmental and Carbon Footprint Monitoring in Construction Supply Chains
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作者 Jack C. P. Cheng Kincho H. Law 《Journal of Civil Engineering and Architecture》 2011年第1期1-12,共12页
With the growing environmental concerns, green supply chain management (GSCM) is gaining significant attention in the construction industry. Tracking and monitoring the environmental effects brought forth by the par... With the growing environmental concerns, green supply chain management (GSCM) is gaining significant attention in the construction industry. Tracking and monitoring the environmental effects brought forth by the participating members along a supply chain is important to GSCM. The GreenSCOR model developed by the Supply Chain Council provides a generic framework for measuring the total carbon footprint and environmental footprint in a supply chain. The model is based on the Supply Chain Operations Reference (SCOR) model, which represents a supply chain network in a hierarchically structured manner. This paper describes the GreenSCOR framework and its potential application to the construction industry. This paper also presents a web services approach to incorporate the GreenSCOR model to the implementation of collaborative information systems. Each process element in the SCOR model is represented and delivered as individual web service units, which can be reused and integrated using standard web services technologies. The service units are combined and managed in a prototype web service collaborative framework, called SC Collaborator, which is designed and developed for supporting construction supply chain management. An illustrative example is presented to demonstrate the implementation of the GreenSCOR-based SC Collaborator framework. 展开更多
关键词 Green supply chain management (GSCM) Supply Chain Operations Reference (SCOR) model performance monitoring service oriented web services.
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