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MODELLING AND CONTROL OF A 4-QUADRANT PULSE MODULATED LINESIDE CONVERTER FOR 25 kV, 50 Hz-SUPPLIED TRACTION EQUIPMENT
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| Author(s) |
L. J. J. Offringa; W. A. G. de Jager; F. van Overbeeke |
| Abstract |
The pre-design of a 800 kVA, 50 Hz line-side pulse modulated converter for traction equipment is described. The design procedure has been supported by modelling of the control system, computer simulation and measurements on a scaled 5 kW laboratory test model. A special pulse pattern is described, which enables the operation with a relatively high modulation frequency of 900 Hz with accept able switching losses. A combination of active and passive filtering is used for the suppression of line-currents with signalling frequencies. The measurement results from the scaled laboratory model are given; they serve as a design guide for the 800 kVA version of the converter. |
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| Filename: | Unnamed file |
| Filesize: | 3.153 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-08-07 by System |
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