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A DSP-BASED INTERFERENCE CURRENT FILTER FOR ASYNCHRONOUS TRACTION DRIVES
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| Author(s) |
A. Duym; E.K.H. van der Pols |
| Abstract |
This paper describes a newly developed DSP-based digital interference current filter, for use in asynchronous traction drive control systems. The filter suppresses interference currents generated by the drive system, that interfere with the signalling and train protection system of Dutch Railways. The filter is pin-compatible with a previously designed analog filter. Main problem of the design process was the phase-critical behaviour of the filter in the drive control system. Field tests proved that the digital filter meets its design specifications. It is currently applied in the new IRM-1 Electrical Multiple Units of Dutch Railways. Special attention was paid to the programming and simulation environment. The calculated transfer function can easily be implemented, resulting in a high degree of flexibility. Built-in self-testing facilities greatly reduce filter board production time. |
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| Filename: | Unnamed file |
| Filesize: | 352.4 KB |
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| Type |
Members Only |
| Date |
Last modified 2018-05-16 by System |
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