浅谈智能变电站设备在线监测系统的应用

文章主要研究智能变电站设备在线监测系统,以某智能变电站的在线监测系统为例,对在线监测系统的组成和建设进行了详细讨论,在线监控系统能够实现对全站设备运行状态的实时监控,对故障处理和指令决策有着重要的参考作用。     

浅谈智能变电站设备在线监测系统的应用

文章主要研究智能变电站设备在线监测系统,以某智能变电站的在线监测系统为例,对在线监测系统的组成和建设进行了详细讨论,在线监控系统能够实现对全站设备运行状态的实时监控,对故障处理和指令决策有着重要的参考作用。     

智能变电站一次设备在线监测系统分析

智能变电站一次设备在线检测系统能够对一次设备运行状态数据进行有效的获取,同时能够实现对其自动的诊断,进而确保智能变电站安全和可靠运行.本文主要结合笔者多年工作经验以及智能变电站在线监测技术的特点,提出了以IEC61850标准为基础的智能变电站一次设备在线监测系统.     

智能变电站系统二次调试

当前,我国国家电网已经提出了关于如何实现电网建设的智能化的相关方针,因而从进程来看,我国智能变电站的建设工作已经全面展开。从纵向上来看,全新的智能变电站系统与之前使用的传统变电站的不同比较明显,设备之间具有更强的联系性,在进行系统二次调试的过程中,人们关注的重点逐渐向增强设备之间的可操作性转移。若想顺利完成智能变电站的建设工作,就要求我们对系统调试的方法进行不断的更新和完善。     

一种面向智能变电站和生产管理系统设备在线监测的数据转换模型

在线监测是实现电网设备状态检修和生命周期管理的前提,而有效的设备数据转换模型是在线监测的基础。通过对智能变电站及生产管理系统的标准、规范进行分析,提出一种用于智能变电站和生产管理系统设备在线监测的数据转换模型。对生产管理系统的设备信息数据模型进行分类总结,基于交换用XML数据对生产管理系统和IEC 61850标准数据模型进行对比,对变电站设备的铭牌信息、运行信息以及监测信息采用标签映射与ID索引相结合的方法,实现智能变电站到生产管理系统的数据转换。     

安钢智能物流计量系统的设计与实现

从实际需求出发,对安钢物流汽车衡计量系统现场充分调研,通过对原有汽车衡计量流程的改进和对新技术设备的应用,基于RFID红外自动识别技术,并与ID卡、IC卡、信息化、智能计量软件等结合,打破了传统的手工计量模式,成功地实现了自动识别、自动计量,设计了完善的智能物流计量系统。最后对系统的使用效果进行了测试、分析,并对系统进一步扩展和优化的可能性进行了分析。     

集中式保护装置在智能变电站中的应用

智能变电站的全站信息数字化、通信平台网络化、信息共享标准化为二次设备状态监测技术的发展和应用提供了有力条件,特别是集中式数字化保护装置的应用,减少了继电保护二次设备的数量,优化了二次设备的结构,对继电保护二次设备监测实现更为有利.本文就智能变电站的二次设备状态监测技术和集中式数字化保护进行研究     

智能变电站

智能变电站是坚强智能电网的重要基础和支撑。本文阐述了智能变电站与数字化变电站的主要区别,介绍了智能变电站的体系结构、智能一次设备的功能和智能设备与顺序控制的特点,重点研究了智能变电站对应的高级应用功能。针对智能变电站运行维护及应急事故处理的特点,在智能变电站设备检修、在线监测和实时分析诊断技术、工作票自动管理系统及智能辅助控制系统等方面提出了建议,对智能变电站的发展和电网的稳定运行有一定的参考意义。本文主要介绍了智能变电站的基本知识以及今后变电站发展的趋势。     

输变电设备智能状态监测系统

输变电设备状态监测系统是建设坚强智能电网的核心任务之一,与电网安全可靠运行联系紧密。文章首先介绍了构建输变电设备状态监测系统的必要性,从系统框架设计入手,以生产管理信息系统（PMS）为平台,建立应用于总部、网省和地市三级的统一输变电设备状态监测系统。接着,将系统整体结构细化为三层：传感器、状态监测装置和状态监测后台,并对各层运一进行了论述,同时对系统接口进行了设计。最后,介绍了系统诊断的三种主要算法：专家系统、支持向量机、人工神经网络,目的是预测出电气设备可能发生的故障,避免事故的发生。     

智能变电站的关键技术与构建方式

文章着眼于智能变电站的新型技术,分析了智能变电站工作的基本原理和基本技术,着重从标准融合、软件构件、硬件集成和信息管理等方面对智能变电站的工作技术进行了具体分析,从整体上对智能变电站的工作设备、保护和控制的策略、信息的防伪和安全等方面进行了介绍,在总结智能变电站工作具体实现的基础上对其以后的应用前景进行了展望。     

Development in Information and Communications Technology (ICT) Statistics at the Australian Bureau of Statistics

This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.     

Value at Risk in the Suburbs: Eminent Domain and the Geographical Politics of the US Foreclosure Crisis

Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.     

Accountability of NGOs in Bangladesh A critical overview

NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.     

Towards an Asian model of human resource management? A comparative analysis of China,Japan and South Korea

There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.     

The Creation of the Office for National Statistics

A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.     

What helps? Women engineers' accounts of staying on

We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.     

论现代物流企业的发展观

物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。     

浅谈大体积混凝土裂缝的控制

大体积混凝土的裂缝问题是实际工程中长期困扰工程技术人员的问题,其控制技术的研究是混凝土结构研究的热点问题,具有重大的学术价值和潜伏的工程背景。     

Supply Chain Strategies in the UK Fashion Industry—The Rhetoric of Partnership and Realities of Power

This paper focuses on the fashion industry, one characterised by issues such as dramatic shifts in the scale and power of major retail buyers in the market, the advent of retailer own brands, and the nature of sourcing and supply chain decisions, issues that are increasingly global in nature. The aim of this research is to explore the nature of relationships between UK high street multiple fashion retailers and their contracted suppliers, many of whom are entrepreneurial firms by most definitions of the term. Four core themes emerge from the literature and provide a framework for the research, namely, power, process, partnership, and people. The research approach was qualitative, and conducted over a period of twelve months. The paper ends with an agenda for future research.