原文：
      中新网7月22日电 据国资委网站消息，日前，安装了由中国南车株洲所研制的具有完全自主知识产权的6英寸7200V晶闸管的世界首个±800kV/4750A特高压直流换流阀顺利通过关键的型式试验——阀绝缘冲击试验(包括操作冲击试验和雷电冲击试验二个试验)。创造了同类产品通流能力和电压等级世界之最。电站阀门试验结果符合国家技术规范要求，并通过世界权威电力试验认证机构的认证。

　　与交流输电技术相比，直流输电具有线损小、线路造价低、调节快速、系统稳定性强、输送电能力大等优势。研究结果表明： 眼镜阀采用±800kV直流输电技术有利于加大输电规模，节约大量的输电走廊资源，更加经济、更加合理；同时可以有效解决负荷中心电网短路电流超标问题，提高电网的安全稳定水平。根据《国家电网十一五电网规划及2020年展望》，未来十年，国家计划投入数百亿元，在全国建成20多个氧气专用阀、铜阀门超高压或特高压大型直流输电工程，来满足“西电东送、南北互供和全国联网”战略需求。

　　采用直流方式输送电能，首先要解决交直流转换的问题。需要在送电端和受电端分别建设两个换流站，安装换流变压器和换流阀等主要换流设备。送电端换流站把交流电整流成直流电，通过直流输电线路送往受电端换流站，平衡阀在受电端换流站再把直流电逆变成交流电供给用电负荷。

 　　直流输电技术是世界公认的解决长距离、大容量输电和电网互联问题的最有效技术手段，其核心装备直流换流阀的研发制造，是目前复杂程度最高的电力装备技术之一，而换流阀被称作直流输电系统的“心脏”，晶闸管又是换流阀的核心部件，被誉为换流阀“机芯”。 此前，世界上仅有瑞士ABB、德国西门子拥有该技术。

 　　近年来，中国南车株洲所依托国家“十一五”电动阀门执行器科技支撑计划及国家电网公司重点科技攻关项目等重大科研项目，与中国电力科学研究院合作，投入数亿元，成功开发出世界上直径最大、功率最高的6英寸晶闸管，为我国系统攻克高压直流输电技术取得关键性的突破。国家专利4项。并在国内首次完成了配套完成了6英寸高压晶闸管的试制能力及产业化基地建设、测试能力及可靠性试验手段建设，满足了特高压(±800KV)直流输电用6英寸晶闸管的工程化和产业化要求。

 　　目前，中国南车株洲所为中国电科院提供了80只6英寸7200V晶闸管，成功交付灵宝背靠背联网直流输电项目使用的6英寸换流阀晶闸管400只。此次试验的成功，充分展示了中国南车株洲所在高压晶闸管等功率半导体器件领域的研发设计、生产制造的领先能力。

“ The world's first ± 800 kV HVDC valve test success ”是由中国气动阀门网提供的阀门行业新闻，译文仅供参考。另外，中国气动阀门网还提供相关产品搜索： 气动隔膜阀、 气动调节控制阀、 气动执行器与附件、 更多气动阀门产品、 气动阀门价格、等。

译文：
         BEIJING, July 22 Xinhua news website, according to the SASAC, recently installed by the development of China's CSR Zhuzhou with completely independent intellectual property rights of 6-inch 7200V Thyristor the world's first ± 800kV/4750A UHVDC Valve type passed a key test - valve insulation impact test (including the operation of lightning impact test and impact test 2 test). Created a similar product on current capacity and voltage level of the world. The results meet the national technical Check Valvesspecifications and test by the world's authoritative certification bodies power. Compared with AC transmission, DC transmission line loss with a small line of low cost, rapid adjustment, system stability, strength, power transmission capacity of great potential benefit. The results show that: with ± 800kV HVDC transmission technology is conducive to increasing the size, saving resources and transmission corridors, more economical and reasonable; the same time can solve the load center circuit current excessive problems and improve the level of network security and stability. According to "Eleventh Five-Year National Grid network planning and 2020 Outlook", Gate Valvesthe next decade, the state plans to invest several hundred billion into the country more than 20 large-scale high pressure or high voltage DC transmission projects to meet the "West to East , North-South and the national network for each other "strategic needs. DC power transmission mode, the first AC-DC converter to solve the problem. Required transmission power side by side and the construction of two converter stations are installed converter transformer Ball Valves and the converter valves and other equipment, the main converter. Transmission-side converter station to alternating current into direct current rectifier, through the DC power transmission lines sent by the end of converter station, in the end by electric direct current converter station then reverse into the AC power supply load. DC transmission technology is recognized worldwide as the solution long-distance, large capacity transmission and power grid interconnection the most effective technical means, theButterfly Valves core equipment, HVDC Converter Valve Manufacturing R & D, is the complexity of one of the highest power equipment and technology, while the converter HVDC valve called the "heart", thyristor converter valve is the core component, known as converter valve "movement." Previously, the world's only Swiss ABB, Siemens ownership of the technology. In recent years, China's CSR Zhuzhou by relying on the national "Eleventh Five-Year" plan and scientific and technological support State Grid Corporation of key research projects and other major research projects, cooperation with the Electric Power Research Institute in China, invested 100 million yuan, successfully developed the world's diameter the largest 6-inch high power thyristors, for our system, HVDC technology has made capturing the key breakthrough. 4 national patents. And supporting the completion of the first time completed a 6-inch high-voltageGlobe Valves thyristor's trial capacity and industrial base construction, testing, building capacity and reliability test methods to meet the ultra high voltage (± 800KV) 6 inches HVDC Thyristor the engineering and industrial requirements. At present, China's CSR Zhuzhou Power Research Institute by providing a 80 6-inch 7200V thyristor, the successful delivery of projects Lingbao HVDC interconnection using a 6-inch thyristor converter valve 400. The success of this trial, demonstrating where China's CSR Zhuzhou high voltage thyristor power semiconductor devices such as the field of R & D and manufacturing of leading capabilities.

原文来源：http://www.1qidongfamen.com/

2010-07-29 06:13

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