基于自适应MBPE技术的高压输电线路散射特性快速计算方法

张嵩阳; 张林; 王忠强; 王东晖; 郭星; 陆德坚

张嵩阳,张林,王忠强,王东晖,郭星,陆德坚.基于自适应MBPE技术的高压输电线路散射特性快速计算方法[J].电测与仪表,2023,60(2):75-83.
Zhang Songyang,Zhang Lin,Wang Zhongqiang,Wang Donghui,Guo Xing,Lu Dejian.Fast Calculation Method for Scattering Characteristic of Power Transmission Line of High Voltage Based on Adaptive MEPE Technique[J].Electrical Measurement & Instrumentation,2023,60(2):75-83.

基于自适应MBPE技术的高压输电线路散射特性快速计算方法

Fast Calculation Method for Scattering Characteristic of Power Transmission Line of High Voltage Based on Adaptive MEPE Technique

DOI：10.19753/j.issn1001-1390.2023.02.011

中文关键词: 高压输电线路电磁散射 MBPE技术宽频响应快速计算

英文关键词:High voltage transmission line electromagnetic scattering MBPE technique broadband response fast calculation

基金项目:国家自然科学基金联合基金重点项目(U20A20305)；国网河南省电力公司科技项目(52170222000R)

作者中文名	作者英文名	单位
张嵩阳	Zhang Songyang	国网河南省电力公司电力科学研究院
张林	Zhang Lin	国网河南省电力公司
王忠强	Wang Zhongqiang	国网河南省电力公司
王东晖	Wang Donghui	国网河南省电力公司电力科学研究院
郭星	Guo Xing	国网河南省电力公司电力科学研究院
陆德坚	Lu Dejian	北京森馥科技股份有限公司

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中文摘要:

准确快速计算高压输电线路的宽频电磁散射特性是研究其对周边通信设施无源干扰影响的重要基础与前提。然而，当前提出的基于等间隔均匀采样模型参数估计（MBPE）技术的快速求解方法存在稳健性差、计算精度低等问题。为此，本文通过引入一种新的MBPE技术和构建一种自适应频点采样方法，提出了一种稳定性强、计算精度高的高压输电线路宽频散射场快速重构方法。以IEEE研究频段和调幅广播收音台站工作频段为例，分别建立高压输电线路无源干扰的直线模型及线面混合模型，并利用矩量法求解自适应采样频点对应的散射场函数信息，以此基于Thiele连分式有理函数对各频段散射场进行插值，从而实现高压输电线路宽频散射场的准确快速求解。结果表明：传统均匀采样MBPE技术稳健性差、计算精度低，全局平均误差高达25.63%，而本文所提自适应MBPE技术仅为9.08%，因而其相比于传统MBPE技术具有可靠性高、通同性强等优点。

英文摘要:

Accurate and rapid calculation of broadband electromagnetic scattering characteristics of high-voltage transmission lines is crucial for studying its passive interference on surrounding communication facilities. However, the current fast computation method combing equally spaced uniform sampling methodwith parameter estimation (MBPE) techniqueinvolves some drawbacks, such as poor robustness and low computation accuracy. With introducing a new MBPE technique and constructing an adaptive frequency sampling method, this paper proposes a fast reconstruction method of broadband scattering field of high voltage transmission lines with strong stability and high calculation accuracy. Taking IEEE research frequency band and AM radio station working frequency band as examples, the line model and line-surface hybrid model of passive interference of high-voltage transmission line are established respectively, and the method of moments is used to get the scattering field of the adaptive sampling frequency point. Based on Thiele continued fraction rational function, the scattering field of each frequency band is interpolated, so as to obtain the accurate and rapid solution of broadband scattering field of high-voltage transmission line. The results show that the traditional uniform sampling MBPE technique has poor robustness, low calculation accuracy, and the global average error is as high as 25.63%, while the adaptive MBPE technique is only 9.08%, which has the advantages of high reliability and strong compatibility compared to the traditional MBPE technique.

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