基于多物理场耦合的大容量干式空心并联电抗器温度场仿真研究  

Study on Simulation of Temperature Field of Large-capacity Dry-type Air-core Shunt Reactor Based on Multi-physical Field Coupling

作　　者：沈霈宸 赵彦珍[1] 朱世力 郑莉军 门国雄 SHEN Peichen;ZHAO Yanzhen;ZHU Shili;ZHENG Lijun;MEN Guoxiong(School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;Shaanxi Herong Electric Co.,Ltd.,Xi’an 710018,China)

机构地区：[1]西安交通大学电气工程学院,西安710049 [2]陕西合容电气集团有限公司,西安710018

出　　处：《高压电器》2024年第8期120-128,共9页High Voltage Apparatus

基　　金：陕西省重点研发计划项目(2020GY⁃103)。

摘　　要：干式空心电抗器的温度场研究对电抗器的设计和制造至关重要。文中对大容量干式空心并联电抗器,采用电磁—流热多物理场耦合方法,考虑了温度对铝导线电导率的影响,建立了包含星型架、撑条和包封绝缘的三维电抗器有限元仿真模型。对于110 kV输电系统中BKGKL-40000/110电抗器进行了仿真分析,分析结果表明电抗器温度分布总体呈现上高下低的趋势,在电抗器上部中心的空气流速最高,将结果与试验测温结果相比较,两者较为接近,说明了仿真方法的准确性。此外,对加设防雨罩后的电抗器仿真结果进行了分析比较。通过分析电抗器的温度分布特点,为干式空心并联电抗器的设计与制造提供参考。The study on temperature field of dry-type air-core reactors is very important for the design and manufacture of reactor.In view of large-capacity dry-type air core shunt reactor,a three dimensional reactor finite element simulation model,including the star-shaped support,sustaining bar and encapsulation insulation,is set up by using the electromagnetic-fluid-thermal multi-physical fields coupling method and considering the influence of temperature on the conductivity of aluminum conductor.The simulation analysis of BKGKL-40000/110 reactor in 110 kV transmission system is performed.The analysis results show that the temperature distribution of the reactor generally shows the trend of high at the upper part and low at the lower part,the air flowing velocity in the upper center of the reactor is the highest.The comparison between the experimental temperature measurement results and the simulation results is made,which is very close and shows the accuracy of the simulation method.In addition,the simulation results of the reactor with the rain cover are analyzed and compared.By analyzing the temperature distribution characteristics of the reactor,it provides reference for the design and manufacture of dry-type air-core shunt reactors.

关 键 词：干式空心并联电抗器 温度场 有限元仿真 多物理场耦合 

分 类 号：TM472[电气工程—电器]