500 kV电力变压器主绝缘电场计算及其结构优化  

Analysis and optimization of main insulation electric field of 500 kV power transformer

作　　者：卢谷峰 谢军辉 章秦淞 孙胜嘉 LU Gufeng;XIE Junhui;ZHANG Qinsong;SUN ShengJia(San Bian Science&Technology Co.,Ltd.,Sanmen 317100,China;China Jiliang University College of mechanical&electri,Hangzhou 310018,China)

机构地区：[1]三变科技股份有限公司,浙江三门317100 [2]中国计量大学机电工程学院,浙江杭州310018

出　　处：《工业计量》2025年第1期24-27,32,共5页Industrial Metrology

摘　　要：对一台500 kV电力变压器进行了主绝缘电场计算,得出了3个关键区域电场强度的分布和绝缘裕度。针对绝缘裕度小于1.2的高压绕组-铁轭下端部区域,利用烟花算法对该区域静电环尺寸、位置等参数进行优化。结果表明,经过优化后的绝缘结构有效降低了该区域最大电场强度,提高了绝缘裕度。The main insulation electrical field of a 500 kV power transformer is simulated and the distribution of electrical field and electrical insulation margin of 3 key areas are obtained.For the lower end area of high-voltage winding and iron yoke with insulation margin less than 1.2,the fireworks algorithm is used to optimize the size,position and other parameters of the electrostatic ring in this area.The results show that the optimized insulation structure can effectively reduce the maximum electric field intensity in the region and improve the insulation margin.

关 键 词：电力变压器 主绝缘 电场分布 有限元分析 烟花算法 

分 类 号：TM4[电气工程—电器]