Shaft-driven generator system
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United States of America Patent
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Jul 21, 2015
Grant Date -
Nov 14, 2013
app pub date -
May 2, 2011
filing date -
Jun 8, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A shaft-driven generator system has a generator connected to a converter. An inverter supplies an AC voltage on a network side. The converter and the inverter are linked via a DC link circuit. The inverter has at least two phase modules, which each have an upper and a lower valve branch, which each have a plurality of two-pole sub-systems connected electrically in series. Each sub-system has a unipolar storage capacitor, to which a series circuit of two gate-controlled turn-off semiconductor switches is connected electrically in parallel. Each semiconductor switch has a diode connected antiparallel therewith. Thus, a shaft-driven generator system is obtained that has a DC-link converter as a static frequency converter for complying with the required network feedback and for managing transient operating states.
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