Research for Approzimation Algorithm of High-frequency Model of Transformer Windings

摘要：

To obtain order-reduced model of high-frequency transformer windings, firstly voltage transfer functions are derived from short-circuit admittance parameters which are calculated from the distributed parameters or measured parameters of transformer windings in this paper. Secondly, voltage transfer functions are fitted with rational functions by Vector Fitting method. Lastly common Pade algorithm, Routh algorithm and optimal Pade approximation algorithm are order-reduced for rational voltage transfer functions to obtain approximate model of transformer windings. Simulation results show optimal Pade approximation algorithm not only can reserve main magnitude-phase characteristics of high-frequency model, but also can simplify high-frequency model. So this algorithm is the fittest algorithm for gaining order-reduced model at present.

关键词： order-reduction algorithm high-frequency model voltage transfer functions Vector Fitting method

作者: Nie Xin-peng Zhang Ping Wang You-hua Zhang Hai-jiao

作者单位: Hebei University of Technology, Electrical and Automation Institute, Tianjin 300130 Baoding Tianwei Group, Baoding 071051, China

会议类型: 国际会议

会议名称: 2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)

会议地点: 广西桂林

会议语种:英文

页码: 5502-5506

在线出版日期: 2009-06-17（万方平台首次上网日期，不代表论文的发表时间）