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

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    頻率對GIS穩態溫升特性影響的仿真研究

    來源:電工電氣發布時間:2022-08-29 13:29 瀏覽次數:404

    頻率對GIS穩態溫升特性影響的仿真研究

    張濤
    (國網山東省電力公司濰坊供電公司,山東 濰坊 261000)
     
        摘 要:研究不同頻率對氣體絕緣金屬封閉開關設備 (GIS) 穩態溫升特性的影響,對提高 60 Hz 條件下 GIS 的穩定運行具有重要意義。建立了 GIS 電-磁-熱多物理場耦合仿真模型,并考慮了接觸電阻和相間渦流效應的影響,仿真計算了 50 Hz 和 60 Hz 下的生熱功率、溫度等分布,探究了不同頻率對 110 kV 三相共箱式 GIS 溫升特性的影響。仿真結果表明,60 Hz 下 GIS 的能量損耗比 50 Hz 下 GIS 的能量損耗增加了 4.62% ;GIS 在 60 Hz 條件下溫升相對于 50 Hz 有所升高,增幅在 3K 以內;相對而言,頻率對三工位開關溫升的影響比對斷路器更為明顯。
        關鍵詞: 穩態溫升;氣體絕緣金屬封閉開關設備(GIS) ;頻率;多物理場耦合
        中圖分類號:TM595     文獻標識碼:A     文章編號: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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