±800 kV柔性直流换流站换流变区域电气布置研究 |
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作者姓名: | 郝为瀚 郭金川 周钰 李鸿鑫 |
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作者单位: | 1.中国能源建设集团广东省电力设计研究院有限公司,广州 510663 |
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基金项目: | 国家重点研发计划项目“高压大容量柔性直流输电关键技术研究与工程示范应用”2016YFB0901001 |
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摘 要: | 目的] 柔性直流输电技术不断发展,至今已经成为主流的直流输电技术。面对远距离、高电压、大功率的送电需求,±800 kV级特高压柔性直流输电技术的工程应用迫在眉睫。换流变压器作为柔性换流站的核心部分,相关区域的布置方案非常重要,将会对全站整体布置方案产生重要影响。 方法] 基于柔性直流换流站的技术基础,从电气接线、换流变压器布置、换流变广场布置、启动回路布置等方面进行分析,并根据其特点进行优化设计,提出了换流变区域的整体布置方案。 结果] 换流变区域的整体布置方案可靠性高、可实施性强,节约了占地面积和投资成本。 结论] 研究结果对±800 kV柔性直流换流站的工程应用有指导意义,有广泛的工程应用前景。
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关 键 词: | 特高压柔性直流换流站 换流变压器 对称双极接线 |
收稿时间: | 2017-12-14 |
Research on VSC-UHVDC Converter Station Transformer Area Layout |
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Affiliation: | 1.China Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd., Guangzhou 510663, China2.State Key Laboratory of HVDC, Electric Power Research Institute, CSG, Guangzhou 510663, China |
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Abstract: | Introduction] With the continuous development of VSC-HVDC technology, it has become the mainstream of DC transmission technology. For long-distance, high voltage, high power demands for power transmission, ± 800 kV VSC-UHVDC transmission engineering applications are imminent. As the core part of the VSC-UHVDC converter station, the layout of the converter transformer is very important and will have a significant impact on the general layout of the whole station. Method] Based on the technology of VSC-UHVDC, this paper analyzed single line diagram, the layout of converter transformer, layout of converter transformer square, and the layout of starting circuit. And according to the characteristics, this paper provided a superior design of converter transformer layout. Result] The layout is highly reliable and can be implemented, saving the space and investment cost. Conclusion] The research is instructive for the engineering application of the ± 800 kV DC converter station and has a wide range of engineering application prospects. |
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