| 引用本文: | 邹林,廖一帆,罗兵,赵仲勇,陈晓晗,姚陈果.基于有限元法探究电力变压器绕组变形频率响应的仿真研究[J].电力自动化设备,2017,37(1): |
| ZOU Lin,LIAO Yifan,LUO Bing,ZHAO Zhongyong,CHEN Xiaohan,YAO Chenguo.Simulative research on frequency response to winding deformation of power transformer based on finite element method[J].Electric Power Automation Equipment,2017,37(1): |
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| 摘要: |
| 利用有限元软件ANSYS Maxwell计算健康绕组的等值电路参数，通过与解析公式法计算结果对比验证有限元计算结果的正确性。然后基于有限元软件建立了不同变形类型和变形程度的绕组模型，仿真得到了绕组轴心偏移、辐向变形和饼间间距变化绕组的等值电路参数的变化。基于等值电路参数利用电路仿真软件PSPICE仿真绕组变形下的频率响应特性曲线，得到3种变形类型对谐振点的频率、幅值的影响。 |
| 关键词: 电力变压器 绕组变形 有限元法 等值电路参数 频率响应法 |
| DOI：10.16081/j.issn.1006-6047.2017.01.033 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(51377175)；特高压工程技术(昆明、广州)国家工程实验室开放基金(CSGTRC[2014]Q1406B12) |
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| Simulative research on frequency response to winding deformation of power transformer based on finite element method |
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ZOU Lin1, LIAO Yifan1, LUO Bing1, ZHAO Zhongyong2, CHEN Xiaohan2,3, YAO Chenguo2
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1.Electric Power Research Institute of CSG, Guangzhou 510080, China;2.The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China;3.Jibei Langfang Power Supply Company, State Grid North Hebei Power Limited Company, Langfang 065000, China
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| Abstract: |
| The finite element software ANSYS Maxwell is applied to calculate the equivalent circuit parameters of healthy winding and their correctness is verified by comparing them with those calculated by the analytical formulas. The winding models for different deformation types and degrees are then established based on ANSYS Maxwell. The changes of equivalent circuit parameters are obtained by the simulations for three winding deformation types, i. e. central displacement, radial deformation and inter-disk distance variation. Based on these equivalent circuit parameters, the circuit simulation software PSPICE is applied to simulate the frequency-response characteristic curves of deformed windings and the effects of three deformation types on the frequency and amplitude of resonance point are obtained. |
| Key words: power transformers winding deformation finite element method equivalent circuit parameters frequency response method |
