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

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不同影響因素下GIS溫度場分布特性仿真研究

來源:電工電氣發(fā)布時間:2024-05-08 09:08瀏覽次數(shù):138

不同影響因素下GIS溫度場分布特性仿真研究

何龍,馬金財,鄭義,朱詠明,刁海洋,張保明
(國網(wǎng)新疆電力有限公司昌吉供電公司,新疆 昌吉 831100)
 
    摘 要:氣體絕緣金屬封閉開關設備(GIS)在電力系統(tǒng)應用中存在發(fā)熱損耗難以檢測、電流密度大、渦流損耗大等問題。通過電磁-流場-熱場的多物理場耦合模擬,探討了 GIS 的電磁場和溫度場分布特性,揭示出其分布規(guī)律,并分析了有無日照輻射、額定電流大小和環(huán)境溫度大小這 3 種因素對 GIS 溫度分布的影響。仿真結(jié)果表明:在 GIS 的橫截面上,其溫度分布呈現(xiàn)出左右對稱、上部高于下部的物理規(guī)律;日照輻射對 GIS 溫度提升有顯著影響;運行電流的大小對 GIS 溫升的影響最大;外部環(huán)境溫度對 GIS 溫升的影響效果不太明顯。
    關鍵詞: 氣體絕緣金屬封閉開關設備;電磁分布;溫度分布;影響因素
    中圖分類號:TM564 ;TM595     文獻標識碼:B     文章編號:1007-3175(2024)04-0048-06
 
Simulation Research on GIS Temperature Field Distribution
Characteristics Under Different Influence Factors
 
HE Long, MA Jin-cai, ZHENG Yi, ZHU Yong-ming, DIAO Hai-yang, ZHANG Bao-ming
(State Grid Xinjiang Electric Power Co., Ltd. Changji Electric Power Supply Company, Changji 831100, China)
 
    Abstract: In the application of Gas-Insulated Switchgear (GIS) in the power system, there are lots of problems such as difficult detection of heat loss, high current density, and large eddy current loss. Therefore, in this study, the electromagnetic and temperature field distribution characteristics of GIS are explored and their distribution rules are revealed through the multi-physics field coupling simulation of electromagnet-flow-thermal fields. At the same time, the influence of light radiation, rated current and ambient temperature on GIS temperature distribution is analyzed. The simulation results show that in the cross section of GIS, the temperature distribution is bilaterally symmetrical, and the upper part is higher than the lower part; light radiation has a significant effect on the temperature rise of GIS; the value of the operating current has the greatest influence on the temperature rise of GIS; the effect of external ambient temperature on GIS temperature rise is not obvious.
    Key words: gas-insulated switchgear; electromagnetic distribution; temperature distribution; influencing factor
 
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