摘要 |
A system and method for testing a network-side harmonic component of a motor train unit, the method comprising: detecting a current of each power unit, sampling and quantifying the detected current, acquiring a digital current signal of each power unit, superimposing each digital current to obtain a current of the entire train, and acquiring a harmonic component according to the current of the entire train. A sample frequency is determined according to a frequency and a target phase angle error of the harmonic component to be detected. The provided system and method for testing the network-side harmonic component of the motor train unit improve a detection accuracy of harmonic current and can detect the harmonic component at a frequency above 3000 Hz. |
申请人 |
CRRC QINGDAO SIFANG CO., LTD. |
发明人 |
YU, JIN;DENG, XIAOJUN;LIU, SHAOQING;XU, YUE;YU, WEIKAI;XU, GUANJI;HE, ZHULIN;ZHANG, BO |