基于磁热耦合的超大容量干式空心限流电抗器金属结构件温度场研究及试验验证  

Research and Experimental Verification of Temperature Field of Metal Structure of Ultra-large Capacity Dry-type Air-core Current-limiting Reactor Based on Magnetic-thermal Coupling

作　　者：杨黎 陈意龙 张月华 张德金 张猛 王银岭 YANG Li;CHEN Yilong;ZHANG Yuehua;ZHANG Dejin;ZHANG Meng;WANG Yinling(Beijing Power Equipment Group Co.,Ltd.,Beijing 102401,China)

机构地区：[1]北京电力设备总厂有限公司,北京102401

出　　处：《变压器》2025年第1期35-40,共6页Transformer

摘　　要：针对500kV/6000A的干式空心限流电抗器金属结构件发热问题,依托于上海远东-亭卫500kV变电站加装串抗工程,采用磁热耦合仿真分析与试验验证相结合的方法,研究了额定电流6000A,单台阻抗7Ω,单台容量252MVar的大容量限流电抗器金属结构件温度场分布特性。研究结果表明:一是限流电抗器的金属结构件温升试验与仿真结果基本吻合,验证了仿真计算的准确性;二是采用特殊结构设计的铝吊臂通流,热点温升为92K,满足超大容量限流电抗器长期通流的使用要求;三是采用低涡流设计结构的不锈钢支撑结构件,热点温升不超过100K,满足支撑强度要求。In order to solve the heating problem of metal structural parts of 500kV/6000A dry-type air-core current-limiting reactor,based on the installation of a series impedance project in the Shanghai Yuandong-Tingwei 500kV substation,the temperature field distribution characteristics of metal structural parts of a large capacity current-limiting reactor with rated current 6000A,single impedance 7Ωand single capacity 252MVar are studied by means of magnetic-thermal coupling simulation and test verification.The results show that:first,the temperature rise test of metal structural parts of current limiting reactor is basically consistent with the simulation results,which verifies the accuracy of the simulation calculation;the second is the use of special structural design of aluminum boom flow,hot spot temperature rise to 92K,to meet the long-term flow requirements of large capacity current limiting reactor;the third is the stainless steel support structure with low eddy current design structure,and the hot spot temperature rise does not exceed 100K to meet the support strength requirements.

关 键 词：空心电抗器 限流电抗器 金属结构件温升 磁热耦合 

分 类 号：TM471.1[电气工程—电器]