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ADAPTIVE OPTIMAL PULSEWIDTH MODULATION FOR THE LINE-SIDE CONVERTER OF ELECTRIC LOCOMOTIVES
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| Author(s) |
Joachim Holtz; Jens Onno Krah |
| Abstract |
Reflections of traveling waves in a distributed railway overhead supply system produce electrical oscillations at multiple resonant frequencies. These are likely to coincide with the characteristic harmonics of PWM converter-fed locomotives, which may produce electromagnetic interference with track-side communication lines. Resonant excitation of the line is avoided using an optimized PWM control of the line-side converter. The corresponding frequency bands are eliminated in the harmonic spectrum of the converter. An adaptive strategy takes care of the fact that the resonant frequencies are time-varying as the locomotives move along their tracks. The adaptive optimal control can be performed in real-time on a digital signal processor system. |
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| Filename: | Unnamed file |
| Filesize: | 740.8 KB |
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| Type |
Members Only |
| Date |
Last modified 2021-02-23 by System |
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