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期刊号: CN32-1800/TM| ISSN2097-6623

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大容量三相五柱并联电抗器磁热性能研究

来源:电工电气发布时间:2026-02-26 08:26 浏览次数:9

大容量三相五柱并联电抗器磁热性能研究

冀达1,2,王建民2,赵峰2,刘玉芝1,杜振斌2,李翠铭2
(1 石家庄铁道大学 电气与电子工程学院,河北 石家庄 050043;
2 保定天威保变电气股份有限公司 河北省输变电装备电磁与结构性能重点实验室,河北 保定 071056)
 
    摘 要:大容量电抗器作为关键无功调节设备,能够灵活调控系统无功潮流,缓解电压波动。为分析大容量电抗器的磁场分布和温升特性,以一台三相五柱并联电抗器为研究对象,建立三维有限元仿真模型,计算得到不同励磁倍数下的磁场分布及伏安特性等参数,通过仿真分析表明,电抗器磁场分布并不均匀,在铁轭螺杆孔处及铁心柱外径侧磁通密度较大;基于磁场及损耗计算结果,利用 Fluent 构建了温度场仿真模型,并计算得出绕组和铁心的温度分布及热点温升;通过对电抗器伏安特性、损耗及绕组温升计算值与相应的实验数据进行对比,验证了电抗器磁热仿真结果的准确性,为大容量电抗器的开发设计与磁热性能分析提供了有效的计算分析方法。
    关键词: 三相五柱并联电抗器;磁热性能;过励磁状态;伏安特性;热点温升
    中图分类号:TM472     文献标识码:A     文章编号:2097-6623(2026)02-0065-07
 
Research on Magneto-Thermal Performance of Large-Capacity
Three-Phase Five-Leg Shunt Reactor
 
JI Da1, 2, WANG Jian-min2, ZHAO Feng2, LIU Yu-zhi1, DU Zhen-bin2, LI Cui-ming2
(1 School of Electrical and Electronic Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
2 Hebei Province Key Laboratory of Electromagnetic and Structural Performance of Power Transmission and Transformation Equipment,
Baoding Tianwei Baobian Electric Co., Ltd., Baoding 071056, China)
 
    Abstract: As a key reactive power regulation device, large-capacity reactors can flexibly regulate the reactive power flow of the system and mitigate voltage fluctuations. To analyze the magnetic field distribution and temperature rise characteristics of large-capacity reactors, a threephase five-leg shunt reactor was taken as the research object to establish a three-dimensional finite element simulation model, and parameters such as magnetic field distribution and volt-ampere characteristics under different excitation multiples were obtained through calculation. Simulation analysis shows that the magnetic field distribution of the reactor is non-uniform, and the magnetic flux density is relatively high at the yoke screw holes and the outer diameter side of the iron core columns. Based on the calculation results of magnetic field and losses, a temperature field simulation model was built by Fluent, and the temperature distribution and hot-spot temperature rise of the windings and iron core were calculated. The accuracy of the reactor's magneto-thermal simulation results was verified by comparing the calculated values of the reactor's volt-ampere characteristics, losses and winding temperature rise with the corresponding experimental data, which provides an effective calculation and analysis method for the development, design and magneto-thermal performance analysis of large-capacity reactors.
    Key words: three-phase five-leg shunt reactor; magneto-thermal performance; over-excitation state; volt-ampere characteristic; hot-spot temperature rise
 
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