本文選題：GIS　切入點：ANSYS　出處：《山東大學(xué)》2015年碩士論文

【摘要】：GIS組合電器投運規(guī)模日益龐大,由于其集成化高、占地面積少、日常維護(hù)工作量少等優(yōu)點,目前GIS設(shè)備主要應(yīng)用于人口密集、用地緊張的經(jīng)濟(jì)發(fā)達(dá)地區(qū),GIS的可靠性直接影響著當(dāng)?shù)赜秒姲踩Ｏ噍^于機(jī)械類故障,絕緣故障檢修難度大、停電時間長、影響范圍廣,一直受到制造廠和用戶的重點關(guān)注。本文從制造廠的立場上,對252kVGIS設(shè)備常見的、可能誘發(fā)絕緣故障的五種因素進(jìn)行了統(tǒng)計,并利用ANSYS有限元分析軟件對其進(jìn)行了仿真模擬計算。由于研究對象體積較小,為最真實的還原實際情況,本文采用三維建模的方式,務(wù)求模型的準(zhǔn)確性。計算時,為避免自動剖分對小尺寸形狀的簡化忽略,本文應(yīng)用自定義網(wǎng)格劃分工具進(jìn)行網(wǎng)格剖分的參數(shù)化設(shè)置,成功完成了對小尺寸模型的網(wǎng)格剖分。通過計算分析,最終得出了幾種絕緣故障因素對局部電場強(qiáng)度的影響。為驗證理論計算的有效性,本文根據(jù)計算結(jié)果,設(shè)計了幾種具有代表意義的試驗,同時也對無法直接計算的幾種因素,如絕緣件上的硅脂、水分等,都進(jìn)行了試驗驗證,計算結(jié)果與試驗結(jié)果兩相印證,分析該因素對設(shè)備絕緣水平的影響程度。本次研究,為制造廠提供了大量的關(guān)于絕緣故障問題的理論和試驗數(shù)據(jù)支持,證明了將仿真計算應(yīng)用于高壓絕緣設(shè)計的可行性和可操作性,對制造廠產(chǎn)品完善和開發(fā)都有積極意義。
[Abstract]:The scale of GIS combined electrical appliances is increasing. Because of its high integration, less area, less daily maintenance and other advantages, GIS equipment is mainly used in densely populated, and so on. The reliability of GIS has a direct impact on the safety of local electric power. Compared with mechanical faults, insulation failures are more difficult to repair, longer blackout time, and have a wide range of influence. It has always been the focus of attention of manufacturers and users. From the standpoint of manufacturers, this paper makes statistics on five common factors that may induce insulation failures in 252kVGIS equipment. The ANSYS finite element analysis software is used to simulate and calculate it. Because the object of study is small, it is the truest case to restore the actual situation. In this paper, the method of 3D modeling is adopted to make sure the accuracy of the model. In order to avoid the simplification and neglect of small size shape by automatic mesh generation, the parameterized setting of mesh generation is carried out by means of self-defined meshing tool, and the mesh generation of small size model is successfully completed. Finally, the influence of several insulation fault factors on the local electric field strength is obtained. In order to verify the validity of the theoretical calculation, several representative experiments are designed according to the calculated results, and some factors which cannot be directly calculated are also studied. For example, the silicon grease, moisture and so on on the insulating parts have been tested and verified. The calculated results are confirmed with the test results, and the influence of this factor on the insulation level of the equipment is analyzed. A large number of theoretical and experimental data on insulation fault are provided for the manufacturer, which proves the feasibility and maneuverability of applying simulation calculation to the design of high-voltage insulation, which is of positive significance to the perfection and development of the manufacturer's products.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TM595

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本文編號：1674780