本文選題：油浸式變壓器　切入點(diǎn)：多物理場(chǎng)耦合　出處：《科學(xué)技術(shù)與工程》2014年36期 　論文類型：期刊論文

【摘要】：介紹了一種基于有限元法的變壓器二維電磁-流體-溫度場(chǎng)耦合分析方法。通過建立變壓器二維模型,采用有限元法求解變壓器內(nèi)磁通密度分布;并計(jì)算變壓器鐵心及繞組損耗。隨后,采用多物理場(chǎng)間接耦合方法將損耗作為熱源加載條件求解變壓器流體-溫度場(chǎng),分析變壓器內(nèi)部油流速度及溫度分布。對(duì)35 kV油浸式變壓器進(jìn)行二維電磁-流體-溫度場(chǎng)分析,將溫度仿真結(jié)果與經(jīng)驗(yàn)公式的熱點(diǎn)溫度計(jì)算結(jié)果進(jìn)行對(duì)比,驗(yàn)證了方法的有效性和正確性。
[Abstract]:This paper introduces a coupling analysis method of two dimensional electromagnetic fluid temperature field of transformer based on finite element method. The magnetic flux density distribution in transformer is solved by finite element method by establishing two dimensional model of transformer. The transformer core and winding losses are calculated. Then, the multi-physical field indirect coupling method is used to solve the fluid-temperature field of the transformer under the loading condition of the heat source. The velocity and temperature distribution of oil flow in transformer are analyzed. The electromagnetic fluid-temperature field of 35 kV oil-immersed transformer is analyzed, and the results of temperature simulation are compared with those of hot spot temperature calculated by empirical formula. The validity and correctness of the method are verified.
【作者單位】： 武漢大學(xué)電氣工程學(xué)院;國(guó)網(wǎng)山東省電力公司濟(jì)南供電公司;國(guó)網(wǎng)電力科學(xué)研究院武漢南瑞有限責(zé)任公司;
【分類號(hào)】：TM411

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本文編號(hào)：1572694