摘要
抽水蓄能电站与传统GIS电站相比,因开关操作更为频繁,产生VFTO概率更大,同时抽水蓄能电站由于地理环境限制需通过高压长电缆连接地上与地下两部分,接线形式的不同也会使产生的VFTO具有不同的特性。由于VFTO会严重威胁GIS设备、变压器和二次设备的运行安全,尤其是VFTO的幅值是导致设备绝缘损坏的重要因素,因此有必要对抽水蓄能GIS电站的VFTO幅值影响因素与权重进行深入研究。文中以某500 kV抽水蓄能GIS电站为例,采用仿真的方法计算分析了电站中VFTO幅值的影响因素和影响权重,获得了多种因素对VFTO幅值的影响规律和权重,研究结论对抽水蓄能GIS电站VFTO抑制和绝缘配合具有参考价值。
The pumped storage power stations,compared with traditional GIS power stations,have the greater probability of generating VFTO due to frequent operating frequency.At the same time,the pumped storage power sta⁃tion needs connecting the aboveground and underground parts through a long high⁃voltage cable because of geograph⁃ical environment restrictions.The different wiring forms will also cause the generated VFTO to have different charac⁃teristics.Since VFTO can seriously threaten the safe operation of GIS equipment,transformers and secondary equip⁃ment,especially the amplitude of VFTO is an important factor leading to equipment insulation damage,it is there⁃fore necessary to study in depth the influence factors and weights of the VFTO amplitude of pumped storage GIS pow⁃er stations.In this paper,a 500 kV pumped⁃storage GIS power station is taken as an example,the simulation meth⁃ods are used to calculate and analyze the influencing factors and weights of the VFTO amplitude in the power station,and the influence and weight of various factors on the VFTO amplitude are obtained.The conclusion provides refer⁃ence for VFTO suppression and insulation coordination of pumped storage GIS power station.
作者
郝国文
夏斌强
王致远
曹军
王奎钢
吴杨兵
陈子龙
王博涵
郭洁
HAO Guowen;XIA Binqiang;WANG Zhiyuan;CAO Jun;WANG Kuigang;WU Yangbing;CHEN Zilong;WANG Bohan;GUO Jie(State Grid Xinyuan Group Co.,Ltd.,Beijing 102200,China;School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;Zhejiang Xianju Pumped Storage Power,State Grid Xinyuan Company,Zhejiang Taizhou 317312,China)
出处
《高压电器》
CAS
CSCD
北大核心
2023年第4期162-168,共7页
High Voltage Apparatus
关键词
抽水蓄能
VFTO
正交试验法
影响因素
权重分析
pumped storage
VFTO
orthogonal test method
influencing factors
weight analysic
