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中文摘要：
目前我国高速铁路普遍采用高通滤波器来抑制牵引网谐振及机车谐波电流放大现象,但是研究多局限于高通滤波器的改进上,忽视了滤波器接入位置对谐波抑制及电流放大倍数的影响。推导了高通滤波器接入高速铁路不同位置时,由牵引变电所处看进去的牵引供电系统谐波阻抗及电流放大倍数的数学表达式。在此基础上讨论了牵引供电系统谐波阻抗模值、谐振频率点及电流放大倍数在高通滤波器接入牵引网不同位置时与高通滤波器种类、机车所在位置的关系。研究表明,高通滤波器接入机车时有最好的谐波抑制效果与最小的电流放大倍数。
英文摘要：
The high-pass filter is commonly used in high-speed railway to suppress the resonance of traction network and the amplification factor of traction engine harmonic current,but most researches are focused on the improvement of high-pass filter itself,ignoring the influence of its installation location. A mathematical expression of harmonic resistance and harmonic amplification with regard to the installation location of highpass filter is deduced,based on which,the relationship between the harmonic impedance,resonance frequency or current amplification factor and the high-pass filter type or locomotive location is studied for different installation locations. Results show that,the best harmonic suppression effect and the smallest harmonic current amplification factor can be achieved when the high-pass filter is installed in the locomotive.
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