超高压柔性直流换流站换流区优化布置研究Study on Optimal Layout of Converter Area for EHV Converter Station in VSC-HVDC
谢畅,陈建华,钱锋
XIE Chang,CHEN Jianhua,QIAN Feng
摘要(Abstract)：
柔性直流输电因其在新能源并网方面具有特殊优势,近年来在国内外发展迅速。柔性直流换流站作为该技术的核心,研究其平面布置优化,对减少占地面积和投资成本具有重大意义。针对超高压柔性直流换流站换流区的平面布置,提出换流变阀侧汇流母线采用高位跨线布置于主变防火墙联合构架上、启动回路区开关设备采用HGIS(混合式气体绝缘组合电器)、桥臂电抗采用二合一油浸式穿墙伸入阀厅内的优化方案,减少了换流站的占地面积,提高了围墙内的用地系数,对柔性直流换流站的设计和工程建设具有参考意义。
With its unique advantages in new energy integration, voltage source converter based high voltage direct current(VSC-HVDC) transmission in recent years has witnessed rapid development both at home and abroad. VSC-DC converter station is the core of this technology, and the layout optimization to reduce the land coverage and investment cost. According to the layout of converter area of the VSC-HVDC converter station, this paper puts forward a scheme that the busbar at the side of converter transformer valve is arranged on the united framework of main transformer firewall at a high position; the HGIS(hybrid gas-insulated switchgear) is used in the switchgear of startup circuit area; the oil-immersed bridge arm reactor is preferred and its bushings are directly penetrated the valve hall, which reduces the occupied area of converter station and improves the land use coefficient within the fence, which is of referenced significance to the design and engineering construction of VSC-HVDC converter station.
关键词(KeyWords)：
柔性直流输电;换流站;平面布置优化;换流变压器;桥臂电抗器
VSC-HVDC;converter station;layout optimization;converter transformer;bridge arm reactor
基金项目(Foundation): 中国能源建设集团规划设计有限公司科研项目(GSKJ2-D09-2019)
作者(Author):
谢畅,陈建华,钱锋
XIE Chang,CHEN Jianhua,QIAN Feng
DOI: 10.19585/j.zjdl.202103005
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