基于最小二乘算法修正接触网电弧沿边放电参数的研究
Journal of Chongqing University of Science and Technology(Natural Sciences Edition)(2023)
Abstract
弓网系统的安全运行可为电力机车提供稳定的电流供应.高速动态运行的接触网伴随着电弧放电现象,易使暂态过电流侵入输电线路,从而造成供电故障.首先,分析接触网动态运行的预估模型和参数变化特征;其次,利用最小二乘算法对模型参数进行辨识,提出电弧沿边放电防护与参数修正方案;最后,应用Matlab软件对弓网动态模型参数进行拟合修正.仿真实验结果表明,采用最小二乘算法在线修正误差可获得最优解,并与设定值保持良好的线性关系.
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Key words
least square method,pantograph-catenaries system,edge discharge,model identification and correction,Matlab simulation
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