共查询到20条相似文献,搜索用时 139 毫秒
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正人物简介国际智能电网行动网络(ISGAN)输配电系统主席、瑞典国家电网输电系统调度委员会成员、皇家工程科学院会员。在电子技术产业领域拥有35年从业经验。早在1890年,瑞典就已经产生了电网互联的概念。在此后的30年里,瑞典国内建成了一条由东向西、长度为400公里的输电线路,当时的电压等级只有130千伏。之后,为了与瑞典北部地区的水电实现互联,1922年起,瑞典电网开始向北部延伸,此时, 相似文献
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Eva Persson Kai Becket Patrik Gunnar Helin 《照明设计》2007,(2):48-55
经过长时间的等待,瑞典外交官们终于在美国首都华盛顿拥有了属于自己的新使馆大楼。2006年秋,瑞典驻美使馆“瑞典会馆”(House of Sweden)在波托马克河(River Potomac)上游落成开放,外交官们希望建造一座真正体现其本国特色的建筑的梦想也随之实现。使馆大楼所用建筑材料充分体现瑞典传统一开放性和透明性,这同样也是瑞典外交的宗旨,如今外交官们正按照这一宗旨在此开展自己的外交活动。经过瑞典照明设计师的精心打造。使馆大楼内外都散发着瑞典的生活气息。[编者按] 相似文献
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假借瑞典访问之机,关中客重点对瑞典中小学信息技术教育应用发展情况进行了考察和了解。一个总体的印象是,瑞典中小学信息技术教育应用发展迅猛,尤其是1:1项目的发展,这与国内最近几年中小学电子书包实践与研究的发展非常相似。 相似文献
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内蒙电管局赴瑞典、丹麦学习团,于1988年1月6日到4月30日在瑞典国家电力局(Swedish State Power Board),瑞典南方电力公司(SYDKRAFT)和丹麦东部电力公司(ELKRAFT)学习考察了近四个月.木文重点介绍上述三家公司的管理机构设置情况. 相似文献
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瑞典工商与能源大臣毛德·奥洛夫松日前在瑞典《每日新闻》报上撰文透露,瑞典将在未来10年内新建2000座风力发电站,以增加可再生能源发电量。 相似文献
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Bohlin Per Edvinsson Mats Lindbergh Gustav Lundqvist Carl-Gustav 《Power Systems, IEEE Transactions on》1986,1(4):90-95
This paper describes a load management program successfully implemented in Sweden. There is today an excess supply of electric energy in Sweden mainly due to the fast developement of nuclear power. This has resulted in a temporary situation with excess low-cost hydro and nuclear power. To take advantage of this situation, a complete load management system based on a personal computer was designed in a very short time. The main part of the paper describes different aspects of the system developed. The paper give in addition some operational experiences and concludes by addressing how the system can be used in the future, when the temporary excess supply situation is over. 相似文献
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《Electrical Insulation Magazine, IEEE》1994,10(4)
On Oct. 1, 1993 a new 350 kV/440 MW HVDC cable was commissioned between Norway and Denmark. This 127 km-long, Skagerrak 3 cable was manufactured bv Alcatel Kabel Norge. It was installed at a record maximum sea depth of 530 m. During the summer of 1994 a 250 km-long, 450 kV/600 MW HVDC cable will be installed across the Baltic Sea from Sweden to Germany. This Baltic Cable, manufactured by ABB High Voltage Cables, will set a world record for voltage level, length and transmission capacity. The main benefit of these long-distance HVDC cables is an increased load exchange capacity between hydroelectric power stations in Norway and Sweden and various European thermal power systems 相似文献
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This paper is about start-up costs of hydro power units. In the introduction we address three questions about start-up of hydro power units: what causes the costs in the start-up? How much does a start-up cost? How do start-ups effect the short-term scheduling strategies of power producers in Sweden? In order to answer these questions, we have interviewed employees working with generation planning at the eight largest power producers in Sweden. We found five aspects causing start-up costs: loss of water during maintenance; wear and tear of the windings due to temperature changes during the start-up; wear and tear of mechanical equipment during the start-up; malfunctions in the control equipment during the start-up; and loss of water during the start up. The aspects causing the largest costs are maintenance due to the wear and tear and the unavailability and personnel costs due to malfunctions in the control equipment. The cost of lost water is usually small. Our conclusions are the following: start up cost will depend on the nominal power of the unit and the unit model; the majority of the power producers consider start-ups in their planning; there is a need for better knowledge about start-up cost; and there is a need for planning software which considers start-up costs of hydro units 相似文献
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某电厂2台超超临界机组的风机油站设计存在缺陷,油站运行中曾发生过双筒油滤器清理漏油、油泵出口逆止阀卡涩、油站控制电源故障及动力电源接线松动油泵全停等情况。针对此类典型故障,采取了"L"型中空油槽螺塞、增设滤网旁路、加装逆止阀隔离球阀、增加逆止阀阀芯的平衡孔、优化控制系统及改进动力电源接线等处置方法,从而解除了此类故障,提高了设备运行的可靠性,可为同类型设备系统的改造优化提供借鉴。 相似文献
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介绍了美国、德国、英国、丹麦、荷兰、西班牙、瑞典、意大利、加拿大、日本、印度、俄罗斯、澳大利亚及我国的风力发电概况。 相似文献
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针对变压器储油柜油位计测量中的"假油位"、绝缘油老化以及停电补油等问题,提出一种基于压力传感器的变压器油位检测及带电补油装置。该装置通过在储油柜放油管加装双压力传感器,运用二点压力差分算法对油位进行精准测量,减少因"假油位"造成的重复检修,通过油流和泵体分离、真空循坏排气系统、进油和注油过程分离实现变压器储油柜的不停电补油,降低停电检修次数,有效提高设备整体运行可靠性和用户体验。通过国网保定供电公司现有变压器储油柜改造进行前后对比,验证了该装置测量准确性和实用性。 相似文献