牵引网谐振特性与治理方案Harmonic Resonance Characteristics of Traction Network and Treatment Scheme
骆冰祥;解绍锋;李群湛;苏鹏;
摘要(Abstract):
为研究牵引网谐波特性与治理方案,运用模态分析法计算牵引网网络节点导纳矩阵的特征根,分析电力机车在牵引网不同位置时系统的谐波谐振特性,并提出谐波治理措施。首先通过建立牵引供电系统等效电路及数学模型,分别计算牵引网在无滤波器、只安装阻波高通滤波器、安装阻波高通滤波器和单调谐滤波器3种情况下,机车负荷在不同位置时牵引供电系统模态阻抗,分析其谐振特性,并选取合适滤波器参数;最后根据实际线路参数,对3种情况下牵引网的谐波特性进行仿真验证。研究结果表明,牵引网谐振特性与牵引网本身属性有关,而与机车位置无关;阻波高通滤波器可以有效抑制交直交机车引起的高次谐波谐振,但会使低次谐波含量上升;继续投入合适参数的单调谐滤波器,可较好滤除交直机车产生的低次谐波,且不影响高次谐振抑制效果。
关键词(KeyWords): 电气化铁路;谐波分析;无源滤波器;阻波高通滤波器;单调谐滤波器
基金项目(Foundation): 国家自然科学基金项目(51877182);; 神华集团科技研究项目(2018-0241,SHGF-17-44)~~
作者(Author): 骆冰祥;解绍锋;李群湛;苏鹏;
Email:
DOI: 10.13335/j.1000-3673.pst.2019.0890
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