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State control of a static ·frequency converter decentral railway supply network
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| Author(s) |
H.-C. Doht; M. Hilscher |
| Abstract |
Due to lower network disturbances static frequency converters for railway supply
networks are nowadays mostly based on voltage-fed inverters [1]. With standard two or three-level inverter modules Siemens can assemble converters for the 5 to 33 MW power range. The closed-loop control and the modulation strategies of these inverters define the
dynamic behaviour at the converter's output side. Especially at critical operating points e.g. short-circuits on the single-phase side, tpe control system has to ensure reliable operation of the converter without interruption until other independant protection devices can react. With a new state controller running on a digital signal processor board the
converter can also fulfill these short-circuit requirements without the high overload capability of a rotating machine converter. This paper describes the behaviour of a 7 MW static frequency converter unit for feeding a decentral railway network. |
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| Filename: | Unnamed file |
| Filesize: | 556.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2015-12-10 by System |
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