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集成通信是建设智能电网最为基础的技术,它不仅是其他关键技术的基础,而且是智能电网的核心组成部分。在研究国内外集成通信技术的基础上,结合国内智能电网的发展要求,归纳总结了一些已进入商业化应用或是正处于研究发展当中的集成通信新技术。分析了我国现有电力通信网络存在的问题,并阐述了以下一代网络技术为基础建设开放标准、高速双向的全集成通信网络。在建设满足我国现在和未来发展需求的智能电网前提下,应用集成通信技术和其他技术能带来显著的经济效益,文中从电网公司、消费者以及电网运行本身的角度总结了应用集成通信技术所带来的经济效益。 相似文献
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建设信息时代的智能电网 总被引:33,自引:6,他引:27
为了迎接电力行业由工业化向信息化转变的新挑战,提高能源资产利用率,应对全球环境能源危机,全球电力企业和研究机构提出了电力行业的可持续发展方向——智能电网。智能电网是一个以电力系统为对象,结合新型的控制技术、信息技术和管理技术,实现从输配电到用户所有环节的智能交流,能够科学系统地优化电力生产、传输和使用的自愈电网。文章介绍了智能电网的特征、发展和研究现状,分析了智能电网建设的目标、所需的先进技术和可能遇到的阻碍,并分别讨论了建设用户侧和输配电网侧智能电网的相关问题。 相似文献
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<正>0引言智能电网是将智能能源技术应用到电网供配电领域的新兴技术,集成了先进的传感器技术、监控技术、现代信息技术及通信技术,从而显著提高从输配电到用电系统的效率和性能。智能电网需要将配电网的每一个节点都能够得到实时的监控,从而保证从供电端到用户端之间每一点上的电网参数和运行状态信息的双向流动。低压断路器是低压配电 相似文献
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当前,我国正在积极倡导智能电网的建设。智能电网是一个以电力系统为对象,结合新型的控制技术、信息技术和管理技术,实现从输配电到用户所有环节的智能交流,能够科学系统地优化电力生产、传输和使用的自愈电网。智能电网的主要特征包括自愈、兼容、互动、优化、集成、容许各种不同发电形式的接入等,其核心内涵是实现电网的信息化、数字化、自动化和互动化。 相似文献
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我国智能电网发展相关问题探讨 总被引:2,自引:2,他引:0
进入21世纪以来,我国经济持续快速发展,电力需求增长快速。同时,气候变化、环境保护和可持续发展问题日益突出,消费者对于供电可靠性、电能质量和电力服务的要求越来越高。在此背景下,我国的电网具有2个主要特色:在未来很长时间内,电网仍将处于快速发展过程中;必须走以特高压电网为骨干网架、各级电网协调发展的坚强电网之路。基于对我国智能电网建设的必要性和基础的分析,重点探讨了我国发展智能电网应关注的4个方面,即建设具有中国特色的坚强的智能电网、科学规划输配电系统智能化时序、超前谋划智能电网与信息化建设的融合,以及牢固树立智能电网与电源和用户和谐发展的思想。提出了开展我国智能电网建设的相关建议。 相似文献
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智能电网及其通信技术 总被引:1,自引:0,他引:1
现代化电网是国家能源战略的重要组成部分,而智能电网是当前现代化电网建设的重要方向之一。文章介绍了智能电网的基本概念及在各国的发展,阐述了智能电网的特征和其建设中的通信技术,建立高速、双向、实时、集成的通信系统是实现智能电网的基础。在该技术领域中需要重点关注开放的通信架构和统一的技术标准。 相似文献
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Mohamed E. El-hawary 《电力部件与系统》2014,42(3-4):239-250
Abstract This paper introduces Smart Grid and associated technical, environmental and socio-economic, and other non-tangible benefits to society, and articulates the need for the concept and the fact that it is a dynamic interactive, real-time infrastructure that responds to the challenges of designing and building the power system of the future, rather than being simply a marketing term. To illustrate the diversity of terminology, the paper compares an Electric Power Research Institute (EPRI) definition with that suggested by a study group of the International Electrotechnical Commission (IEC). Next, a paper sponsored by the Canadian Electricity Association (CEA) that cites three example definitions to highlight the diversity of views of Smart Grid is briefly reviewed. Early misconceptions and characterizations of Smart Grid are discussed as a prelude to addressing challenging issues that motivate developing and implementing related innovative technologies, products and services. The paper then discusses the potential promise of the Smart Grid, which is embedded in its often-cited attributes of efficiency, accommodating, quality focus, enabling and self-healing to name some. The paper then addresses some of the often-cited impediments to accepting Smart Grid which are based on concerns and issues confronting its forward progress, adoption and acceptance. Distribution Automation (DA) and embedded intelligence are discussed emphasising self-healing, optimizing operation and facilitating recreation and recovery from abnormal events. Functional and integration requirements of Distributed Energy Resources (DER,) are detailed. Smart Consumption Infrastructure elements of Distribution Management Systems (DMS,) Automated Metering Infrastructure (AMI,) Smart Homes (SH), and Smart Appliances (SA,) are discussed. Following the introductory section, this paper summarizes contributions included in the double issue 42(3–4) of the Electric Power Components and Systems Journal. To begin, papers are offered discussing smart grid activities in China, India, and the development of a Smart Grid roadmap for the US State of Kentucky. The approaches of each of these cases reflect the diversity of policy initiatives in these jurisdictions. Two state of the art reviews are given next. The first considers distribution network active management and future development trends in technologies and methods, where centralized and decentralized management frameworks and applying agent-based coordination are discussed. The second offers a review of smart home technologies and the goals of an energy management system (SHEMS). This section is concluded by a letter providing an overview of recent and expected advances nanotechnology applications in Smart Grid. Following the state of the art review section, ten papers offering new and innovative research approaches and results are included. These papers cover Smart Grid topics such as real-time energy control approach for smart home energy management systems, optimal operation of energy- efficient buildings with Combined Heat and Power (CHP) systems, energy management and control of Electric Vehicle (EV) charging stations, voltage-frequency control of a voltage source inverter (VSI) in a smart islanded microgrid, smart generation scheduling for wind-thermal-pumped storage systems, optimized power system restoration, robust data transmission upon compressive sensing, data fusion for wide-area oscillation monitoring, satellite based GPS synchronized monitoring systems, stability in Smart Grid with emerging renewable energy techno- logies. 相似文献
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在智能电网的发展过程中,配电网需要从被动式的网络向主动式的网络转变,这种网络利于分布式发电的参与,能更有效地连接发电侧和用户侧,使得双方都能实时地参与电力系统的优化运行。而微电网这种新型的网络结构恰是实现主动式配电网的一种有效的方式,开发和延伸微电网的概念能够促进分布式电源与可再生能源的大规模接入,使传统电网向智能网络过渡。微电网先进的控制系统和灵活的运行方式恰好满足了智能电网的要求,并且整合了高比重的可再生能源发电,提高了系统的整体效率和灵活性。 相似文献
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从智能电网的特征、关键技术、体系结构三个方面分析智能电网对电力系统广域测量技术的依赖性,并根据广域测量技术在电力系统中的高级应用说明了其对智能电网的支撑作用,最后以华东电网和宾夕法尼亚一新泽西一马里兰互联电网(PJM)的发展实例进行分析。 相似文献
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综合能源系统集成了电、气、热、冷等多种能源,充分挖掘了各个能源系统的潜力,成为当今能源系统发展的主要方向。为顺应能源革命发展趋势,国家电网有限公司确立了打造“三型两网”、建设世界一流能源互联网企业的新时代战略目标。本文针对综合能源系统概念及发展进行了分析,研判了综合能源系统的经济性、发展前景,以及需要研究的关键技术。结合综合能源系统发展特点,讨论了综合能源系统与电网协调发展关系及措施。 相似文献
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The deployment of Smart Grid technologies opens new opportunities to develop new forecasting and optimization techniques. The growth of solar power penetration in distribution grids imposes the use of solar power forecasts as inputs in advanced grid management functions. This paper proposes a new forecasting algorithm for 6 h ahead based on the vector autoregression framework, which combines distributed time series information collected by the Smart Grid infrastructure. Probabilistic forecasts are generated for the residential solar photovoltaic (PV) and secondary substation levels. The test case consists of 44 micro-generation units and 10 secondary substations from the Smart Grid pilot in Évora, Portugal. The benchmark model is the well-known autoregressive forecasting method (univariate approach). The average improvement in terms of root mean square error (point forecast evaluation) and continuous ranking probability score (probabilistic forecast evaluation) for the first 3 lead-times was between 8% and 12%, and between 1.4% and 5.9%, respectively. 相似文献
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随着上海高新技术企业的发展和信息化社会的建设,用户对电能质量提出了更高的要求;上海电网目前的输电走廊和变电站选址已经非常困难,电网建设也常因此受到影响;在厂网分离的条件下,电网的安全稳定运行也面临着巨大的挑战。面临这些挑战,对上海电网的技术要求也就更高了。在介绍上海电网的现状、分析电网的特点和所面临的问题基础上,从上海电网的实际和需求出发,对大容量交直流输电技术、灵活交流输电技术、信息管理技术、全寿命周期管理等新技术在上海电网中的应用前景作了展望,这些技术涵盖了电力系统的规划、建设、运行和管理等多个方面,对上海电网发展和新技术应用有指导意义。 相似文献