[1]翟小社,刘 畅,李仁峰,等.电快速瞬变脉冲群发生器的特征根建模方法研究[J].高压电器,2020,56(02):21-26,33.[doi:10.13296/j.1001-1609.hva.2020.02.004 ]
 ZHAI Xiaoshe,LIU Chang,LI Renfeng,et al.Modeling of the Electrical Fast Transient/Burst Generator by Latent-roots Method[J].High Voltage Apparatus,2020,56(02):21-26,33.[doi:10.13296/j.1001-1609.hva.2020.02.004 ]
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电快速瞬变脉冲群发生器的特征根建模方法研究()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第56卷
期数:
2020年02期
页码:
21-26,33
栏目:
研究与分析
出版日期:
2020-02-14

文章信息/Info

Title:
Modeling of the Electrical Fast Transient/Burst Generator by Latent-roots Method
作者:
翟小社1 刘 畅2 李仁峰2 姚晓飞1
(1. 西安交通大学电力设备电气绝缘国家重点实验室, 西安 710049; 2. 天津平高智能电气有限公司, 天津 300304)
Author(s):
ZHAI Xiaoshe1 LIU Chang2 LI Renfeng2 YAO Xiaofei1
(1. State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China; 2. Pinggao Intelligent Electric Co., Ltd., Tianjin 300304, China)
关键词:
电快速瞬变脉冲群 特征根法 传输函数 等效电路
Keywords:
electrical fast transient/burst latent root transfer function equivalent circuit
DOI:
10.13296/j.1001-1609.hva.2020.02.004
摘要:
在电磁兼容设计中,为了对电子单元的电快速瞬变脉冲群抗扰度性能进行预测,须分别建立干扰源发生器及耦合装置的仿真模型。文中的研究目标是研究和验证基于特征根理论的电快速瞬变脉冲群发生器建模方法。对于干扰源发生器的建模,文中根据电网络理论,采用特征根法建立发生器脉冲形成网络的传输函数,其中,以两个负实根表征脉冲形成电路的非振荡物理过程,两共轭复根表征其衰减振荡过程,特征参数均由生产厂家提供的发生器开路校准波形确定。基于传输函数,采用CAUER法进行电网络综合,并根据匹配校准波形进行归一化运算,最终建立发生器的等效电路。对于标准耦合夹的建模,以矢量网络分析仪对耦合装置的端口散射参数(S参数)进行测量,在相应频段内以矢量匹配法对S参数的测量结果进行有理函数逼近,建立耦合网络的宏模型,并进而转换为SPICE等效电路。基于以上建模方法对两平行信号线的共模及差模干扰进行了仿真与实验对比,对比结果验证了文中方法的有效性。
Abstract:
It is essential to construct an accurate model consisting of both an equivalent circuit of electrical fast transients/burst(EFT/B)generator and a coupling device, so as to predict interference immunity performance of an electronic equipment under EFT/B test. In this paper, a modeling method of EFT/B generator is proposed based on the theory of latent roots. For the modeling of the interference source generator, a transfer function of EFT pulse-forming network is constructed by the latent-roots method based on the network theory, in which two negative real roots are adopted to characterize the non-oscillatory physical process of the network, and both conjugated complex roots are used to characterize the damping-oscillation process. The parameters referring to the transfer function are determined according to the standardized waveforms of the generator in open-circuit condition. These standardized waveforms were provided by the manufacture of the generator. Subsequently, an equivalent circuit of EFT/B generator is constructed via synthesis of electrical network based on CAUER method and re-normalization calculation based on the matched standardized waveforms. For the modeling of the standard coupling clamp, a SPICE equivalent circuit is obtained from a macro model of the coupling network. The coupling network is constructed by the rational function approximation of the test results of the scattering parameters (S-parameters) based on the vector fitting method in a corresponding frequency band. The S-parameters at the ports of a coupling device are measured by a vector network analyzer. The proposed modeling method is verified by comparing the simulation results of differential-mode interference and common-mode interference of two parallel signal lines with the experimental data.

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备注/Memo

备注/Memo:
收稿日期:2019-10-21; 修回日期:2019-12-17基金项目:国家自然科学基金重点项目(51937009)。Project Supported by the Key Project of National Natural Science Foundation of China(51937009).翟小社(1972—),男,高级工程师,主要从事智能电器设计及电磁兼容研究工作。刘 畅(1981—),男,博士,工程师,主要从事真空灭弧室设计。李仁峰(1990—),男,硕士,主要从事真空灭弧室老炼技术研究。姚晓飞(1985—),男,博士,助理研究员,主要从事相控快速真空开断技术及真空电弧理论研究。
更新日期/Last Update: 2020-02-14