高压输电线路宽频散射响应高效求解方法

针对传统均匀采样模型参数估计（MBPE）技术求解高压输电线路宽频散射特性存在的精度低、可靠性差等问题，引入一种自适应能力强的新MBPE技术，与构建的自适应频率采样算法结合，提出了一种准确快速求解高压输电线路宽频散射特性的新方法。以IEEE中波广播研究频段和调幅广播收音台工作频段为例，分别建立高压输电线路散射场的直线与线-面混合模型，将矩量法、MBPE技术和自适应频率采样算法结合，确定自适应采样点散射场信息和Stoer-Bulirsch有理插值函数，实现高压输电线路散射场宽频响应预测。计算结果表明所提出的自适应MBPE技术具有较高精度与可靠性。

High Efficiency Method of Estimating Broadband Scattering Response for HV Transmission Lines

Targeting the problems of low accuracy and poor reliability in estimating the broadband scattering properties of high-voltage transmission lines with model-based parameter estimation （MBPE） technique based on traditional uniform sample， the paper proposes a new MBPE technique with strong adaptive ability， and it is combined with the constructed adaptive frequency sampling algorithm， thereby obtaining a new method that can estimate the broadband scattering properties accurately and quickly. Taking IEEE medium wave broadcasting research frequency band and amplitude modulation radio working frequency band as the examples， the line model and line-plane mixed model of the scattering field of the high-voltage transmission lines are established respectively. Moreover, the method of moment， MBPE technique and adaptive frequency sampling algorithm are combined to determine the scattering field information of adaptive sampling points and Stoer- Bulirsch rational interpolation function， so as to predict the broadband response of the scattering field of the high-voltage transmission lines. The results show that the proposed adaptive MBPE technique has the merits of high accuracy and reliability.