| 引用本文: | 李小燕,董华英.矢量匹配法在频变传输线暂态模拟中的应用[J].电力自动化设备,2004,(8):79-80,84 |
| .Application of vector fitting to transient simulation of frequency dependent transmission line[J].Electric Power Automation Equipment,2004,(8):79-80,84 |
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| 摘要: |
| 随着电力系统、高速与微波电路中工作频率的不断提高和传输速度的逐渐增大，电磁暂态的仿真计算要求考虑传输线的频变特性。描述了矢量匹配法的基本特性及其应用的具体步骤，并立足于已有的频变传输线模型，在复频域应用矢量匹配法对特性导纳和传播系数进行了拟合，建立了一个通用的频变传输线等效模型。通过具体算例，与电磁暂态计算程序EMTP(Electro Magnetic Transients Program)计算结果相比较，验证了其有效性。 |
| 关键词: 矢量匹配 频变参数 传输线 仿真 模型 |
| DOI： |
| 分类号:TM711 |
| 基金项目: |
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| Application of vector fitting to transient simulation of frequency dependent transmission line |
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LI Xiao-yan1 DONG Hua-ying 2
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| Abstract: |
| With the increase of working frequency and transmission speed in high-speed circuit and microwave circuit of power system,the frequency-dependent character of the transmission line should be considered in electromagnetic transient simulation. The fundamental properties of vector fitting and its application to simulation of frequency-dependent transmission line are depicted in detail. On the basis of some frequency dependent models existed,an all-purpose model for frequen-cy dependent transmission lines has been obtained via fitting characteristic admittance and propagation constant by vector fitting. The simulative results of an example are given and its validity is verified by comparing with the results in EMTP(ElectroMagnetic Transients Program). |
| Key words: vector fitting,frequency-dependent parameter,transmission line,simulation,model |
