变压器油箱真空强度的有限元分析及优化

发布时间：2018-06-08 14:29

本文选题：变压器油箱 + Pro/e　；参考：《浙江工业大学》2014年硕士论文

【摘要】：变压器是电力系统中分布广泛、结构复杂、造价昂贵的重要电气设备,它担负着电压转换和电能传送的重任,它们的安全运行直接关系到整个电力系统的稳定性和安全性。油箱作为油浸式变压器的外部包容设备,是极其重要的部件之一。实践证明,在变压器的工作期间,有30%的故障是由于油箱的设计不合理造成的。本课题对油浸式变压器的油箱进行建模、仿真、分析,将理论分析结果与现场测试结果相对比,找出变压器油箱在设计中存在的问题。主要的工作包括如下内容：首先,阅读了大量的国内外相关技术研究文献,对当前本课题研究的最新状况进行比较全面、深入的调研,总结各类结构有限元分析的优点,找出存在的问题。立足于工作中的实际存在的问题和实用性,对其进行分析研究。其次,参照变压器油箱的CAD二维平面图纸和PDF格式明细表,应用Pro/E软件进行油箱的建模。再次,采用有限元分析方法,将建立的实体模型转化到ANSYS有限元分析软件下,对油箱模型进行有限元分析。最后,对有限元分析得出的结果与车间的抽真空试验测量结果进行了比较。对比结果表明,利用本文建立的有限元分析模型,可以有效的分析出电力变压器油箱的受力不均匀处,可以用于指导设计人员优化设计方案。
[Abstract]:Transformer is an important electrical equipment with wide distribution, complex structure and high cost in power system. It takes on the important task of voltage conversion and power transmission. Their safe operation is directly related to the stability and security of the whole power system. Oil tank is one of the most important components as the external containment equipment of oil-immersed transformer. It is proved that 30% of the faults are caused by the unreasonable design of the tank during the working period of the transformer. In this paper, the oil tank of oil-immersed transformer is modeled, simulated and analyzed, and the theoretical analysis results are compared with the field test results to find out the problems existing in the design of the oil tank of the transformer. The main work includes the following: first, read a large number of domestic and foreign related technical research literature, the current research on the latest status of this topic is relatively comprehensive, in-depth investigation, summed up the advantages of various structural finite element analysis. Identify the problems that exist. Based on the practical problems and practicability of the work, it is analyzed and studied. Secondly, referring to the CAD 2D plane drawing and PDF format detail table of transformer fuel tank, the model of oil tank is built with Prop / E software. Thirdly, using the finite element analysis method, the established solid model is transformed into ANSYS finite element analysis software, and the finite element analysis of the fuel tank model is carried out. Finally, the results obtained by finite element analysis are compared with the results of vacuum pumping test in workshop. The comparison results show that the finite element analysis model established in this paper can effectively analyze the non-uniform force of the power transformer fuel tank and can be used to guide the designer to optimize the design scheme.
【学位授予单位】：浙江工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM411

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