±500kV直流输电系统换流站阀厅内金具表面电场数值求解  

Numerical Solution of the Surface Electric Field of Electric Power Fittings in ± 500 kV DC Converter Station Valve Hall

作　　者：王栋[1] 阮江军[1] 杜志叶[1] 黄道春[1] 荣荣[1] 杜卫[1] 

机构地区：[1]武汉大学电气工程学院,武汉430072

出　　处：《高电压技术》2011年第2期404-410,共7页High Voltage Engineering

基　　金：国家自然科学基金(50977066)~~

摘　　要：对于阀厅全模型数值模拟,电位加载方式不同时,阀厅内部金具上的电场分布是不同的,因此有必要对典型相序时的电位、电场分布进行仿真分析;而目前,国内关于阀厅全场域数值求解的参考文献较少。为此,讨论了交流、直流加载方式下的区别以及静电场瞬时加载法在阀厅数值模拟中的应用。根据辽宁某±500 kV换流站阀厅换流变压器设备参数,通过MATLAB仿真得到阀厅内部主要设备在额定功率以及轻载0.1倍额定功率下的电位波形,选取其中比较典型的8组数据进行加载求解,并得到了相应时序下阀厅内部金具表面电场强度的最大值。计算结果表明,在当前设计方案及电位加载方式下,阀厅内部金具表面最大场强符合直流阀厅内部电场控制要求。该数据为阀厅的设计规划提供了可靠支撑,具有重要指导意义。According to the main parameters of valve hall converter transformer device in a ±500 kV converter station,through the MATLAB simulation,the potential waveforms of the converter transformer device were got under rated power and 0.1 of rated power.Then 8 selected typical situations were loaded and solved,and the maximum field strength on surface of fittings was obtained.The results show that,in the current design and the potential load,maximum field strength on surface of fittings can meet the control requirements of the HVDC valve hall.It also provides a reliable support for the design of valve hall.

关 键 词：阀厅 数值模拟 交直流混合 典型相序 最大场强 金具 

分 类 号：TM151[电气工程—电工理论与新技术] TM721.1