| 基于网络函数的VFTO下变压器绕组响应的计算 |
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| 引用本文： | 梁贵书,王晓晖,张喜乐,崔翔.基于网络函数的VFTO下变压器绕组响应的计算[J].高压电器,2004,40(6):412-414. |
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| 作者姓名： | 梁贵书 王晓晖 张喜乐 崔翔 |
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| 作者单位： | 华北电力大学电气工程学院,河北,保定,071003;保定天威保变电气股份有限公司,河北,保定,071000 |
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| 基金项目： | 河北省自然科学基金资助项目(503624) |
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| 摘 要： | 提出了一种基于网络函数的VFTO下变压器绕组响应计算的有效方法。该方法首先用由网络分析仪测量得到的散射参数计算所需的电压传输函数,然后通过矢量匹配法对电压传输函数进行有理函数的拟合,最后,利用与拟合的电压传输函数对应的指数形式的激励响应和输入信号进行时域递归卷积,以获得电压响应。与实测电压响应比较的结果表明:利用传输函数仿真计算得到的结果与测量结果吻合。这说明该方法简单、准确。
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| 关 键 词： | 快速暂态过电压 矢量匹配法 变压器绕组 递归卷积 |
| 文章编号： | 1001-1609(2004)06-0412-03 |
Calculating the Response of Transformer Windings under VFTO Based on Network Function |
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| LIANG Gui-shu,WANG Xiao-hui,ZHANG Xi-le,CUI Xiang.Calculating the Response of Transformer Windings under VFTO Based on Network Function[J].High Voltage Apparatus,2004,40(6):412-414. |
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| Authors: | LIANG Gui-shu WANG Xiao-hui ZHANG Xi-le CUI Xiang |
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| Affiliation: | LIANG Gui-shu1,WANG Xiao-hui1,ZHANG Xi-le2,CUI Xiang1 |
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| Abstract: | An efficient method is presented for calculating the response of transformer windings under VFTO based on network function in this paper. Firstly, the voltage transfer functions are calculated from the scattering parameters of each section which is measured by network analyzer. Secondly, the voltage transfer functions are fitted with rational functions by vector fitting codes. Finally, the voltage responses of each section are calculated via recursive convolution using the pulse response and the input signal. They are compared with the measured voltage responses in time domain. The calculated voltages are in agreement with the measured voltages. It shows that the method is simple and correct. |
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| Keywords: | very fast transient overvoltage(VFTO) vectorfitting transformer windings recursive convolution |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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