Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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频率对GIS稳态温升特性影响的仿真研究

来源:电工电气发布时间:2022-08-29 13:29浏览次数:604

频率对GIS稳态温升特性影响的仿真研究

张涛
(国网山东省电力公司潍坊供电公司,山东 潍坊 261000)
 
    摘 要:研究不同频率对气体绝缘金属封闭开关设备 (GIS) 稳态温升特性的影响,对提高 60 Hz 条件下 GIS 的稳定运行具有重要意义。建立了 GIS 电-磁-热多物理场耦合仿真模型,并考虑了接触电阻和相间涡流效应的影响,仿真计算了 50 Hz 和 60 Hz 下的生热功率、温度等分布,探究了不同频率对 110 kV 三相共箱式 GIS 温升特性的影响。仿真结果表明,60 Hz 下 GIS 的能量损耗比 50 Hz 下 GIS 的能量损耗增加了 4.62% ;GIS 在 60 Hz 条件下温升相对于 50 Hz 有所升高,增幅在 3K 以内;相对而言,频率对三工位开关温升的影响比对断路器更为明显。
    关键词: 稳态温升;气体绝缘金属封闭开关设备(GIS) ;频率;多物理场耦合
    中图分类号:TM595     文献标识码:A     文章编号:1007-3175(2022)08-0036-05
 
Simulation Research on the Influence of the Frequency on
Characteristics of the Stable Temperature Rise of GIS
 
ZHANG Tao
(Weifang Power Supply Company, State Grid Shandong Electric Power Company, Weifang 261000, China)
 
    Abstract: It is vital to study the influence of different frequencies on the characteristics of the stable temperature rise of gas-insulated switchgear (GIS). The result could help improve the steady operation of GIS at 60 Hz.This paper constructed an electromagnetic heating coupling of the multi-physics simulation model, considered the contact resistance and the interphase eddying effect, calculated the distribution of heating power and the temperature at 50 Hz and 60 Hz, and explored the influences of different frequencies on the temperature rise characteristics of 110 kV three-phase common tank of GIS.The simulation results showed that the energy loss of GIS at 60 Hz increased by 4.62%. After comparison, the temperature rise of GIS at 60 Hz increased more than 50 Hz, and the amplification was under 3 K. Compared to the circuit-breaker, the influence of frequency on the temperature rise of the three-position switchgear is distinct.
    Key words: stable temperature rise; gas-insulated switchgear (GIS); frequency; coupling of the multi-physics
 
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