±500kV换流站直流设备过热原因分析及处理  

Analysis and Treatment of DC Equipment Overheating in a 500kV Converter Station

作　　者：李应宏 王贵山 LI Yinghong;WANG Guishan(Liuzhou Bureau,CSG EHV Power Transmission Company,Guangxi Liuzhou 545006,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司柳州局

出　　处：《广西电力》2019年第6期68-71,共4页Guangxi Electric Power

摘　　要：换流站设备发热会限制直流输电系统输送功率,甚至会引起直流输电系统临时停电。针对某±500 kV换流站3起直流设备过热问题进行深入分析,根据设备过热原因并结合设备特点提出了对应的处理方法,有效消除了过热缺陷。最后从设计制造、日常运维等方面给出了具体的防范措施,确保了超高压直流输电系统的安全稳定运行。The overheating of equipment in convertor stations will limit the transmission power of the HVDC transmission system and even cause system outage. Three DC equipment overheating cases in a ±500 kV converter station are analyzed. Corresponding treatment methods are proposed according to the reasons of equipment overheating and combined with equipment characteristics to effectively eliminate the overheating defects. Finally, specific preventive measures are proposed from aspects of design, manufacture, daily operation and maintenance and so on, so as to ensure the secure and stable operation of the EHVDC transmission system.

关 键 词：换流站 直流设备 过热缺陷 防护措施 

分 类 号：TM507[电气工程—电器]