引用本文: | 李妍,周洪伟,沈小伟,等.电力变压器绕组电气参数对绕组变形的全局灵敏度分析[J].电力系统保护与控制,2018,46(7):31-37.[点击复制] |
LI Yan,ZHOU Hongwei,SHEN Xiaowei,et al.Global sensitivity analysis of winding electrical parameters on power transformer winding deformation[J].Power System Protection and Control,2018,46(7):31-37[点击复制] |
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电力变压器绕组电气参数对绕组变形的全局灵敏度分析 |
李妍,周洪伟,沈小伟,曹程杰,吴昊,胡国伟,范逸斐,赵雪霖 |
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(南京电力工程设计有限公司, 江苏 南京 210000 ;国网江苏省电力公司经济技术研究院, 江苏 南京 210000;华北电力大学电气与电子工程学院, 河北 保定 071003) |
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摘要: |
目前已有利用变压器绕组电气参数检测绕组变形的方法,但对电气参数变化与绕组变形之间的联系的研究还不够深入。为此,提出一种分析绕组电气参数对不同种类变形的全局灵敏度方法。该方法首先采用响应面法,建立显式化的绕组电感电容参数响应面模型。然后基于蒙特卡罗的Sobol’全局灵敏度分析法计算各电气参数对不同变形种类的全局灵敏度,分析各电气参数反映不同类型绕组变形的灵敏度。进一步分析其变异系数,以比较不同电气参数针对同一类型绕组形变的灵敏度。以某型号变压器为例进行了分析,分析结果表明利用本方法可以揭示各电气参数与绕组变形种类的内在联系。依据结果可将灵敏度较高的参数信息引入变形判据,为基于电气参数的绕组变形检测提供了理论基础和新的思路。 |
关键词: 变压器 绕组变形 响应面法 Sobol’法 全局灵敏度分析 |
DOI:10.7667/PSPC170425 |
投稿时间:2017-03-24修订日期:2017-06-19 |
基金项目:南京电力工程设计有限公司科技项目资助(JE201606) |
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Global sensitivity analysis of winding electrical parameters on power transformer winding deformation |
LI Yan,ZHOU Hongwei,SHEN Xiaowei,CAO Chengjie,WU Hao,HU Guowei,FAN Yifei,ZHAO Xuelin |
(Nanjing Electric Power Engineering Design Co., Ltd, Nanjing 210000, China;State Grid Jiangsu Economic Research Institute, Nanjing, 210000, China;School of Electric and Electronic Engineering, North China Electric Power University, Baoding 071003, China) |
Abstract: |
At present, some methods have been put forward to detect the winding deformation by using the electrical parameters of the transformer winding, but the research on the relationship between the variation of electrical parameters and the types of deformation is not enough. For this reason, this paper presents a novel method to calculate the global sensitivity of winding parameters to different kinds of deformation. First, this method uses the Response Surface (RS) method to build RS models of winding inductance and capacitance parameters, and then combines them with the Sobol' global sensitivity analysis based on Monte Carlo method to calculate the global sensitivity of each electrical parameter to different deformation types and analyzes the sensitivity of each electrical parameter reflecting different types of winding deformation. Further, it figures the Coefficient of Variation (CV) on certain deformation to compare the sensitive indexes between different electrical parameters. Based on a certain type of transformer, the analysis result shows that the corresponding relationship between the electrical parameters and the winding deformation. Further, the parameters with high sensitivity can be introduced into the deformation criterion, which provides the theoretical basis and new ideas for the winding deformation detection method based on electrical parameters. This work is supported by Technological Project of Nanjing Electric Power Engineering Design Co., Ltd (JE201606). |
Key words: transformer winding deformation response surface method Sobol' method global sensitivity analysis |