TABLE 5 - uploaded by Ying-Tung Hsiao
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The DC harmonics of the propulsion power supply system on the Taipei Mass Rapid Transit System (TMRTS) are characterized. This study applies a new measurement method based on the railway magnetic field measurement technique, to record the DC current harmonics of the TMRT system under various operating conditions. Analysis of the data obtained throu...
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Context 1
... the amplitudes of the harmonics decrease while the train accelerates, but the harmonics that are multiples of 360Hz are clearly enhanced, except those of orders 72, 84, 90 and 96 (which do not exceed -60dB) and might be canceled during the commutation of the inverters. Table 5 summaries the harmonics that are multiples of 360Hz at low, medium and high speeds. The table shows that the amplitudes of harmonics that are multiples of 360Hz at low and medium train speeds obviously exceed those of the standing train. ...
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