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Turbine driven power generating device having DC voltage intermediate circuit and star connected filter capacitors

  • US 6,774,608 B2
  • Filed: 09/19/2002
  • Issued: 08/10/2004
  • Est. Priority Date: 09/25/2001
  • Status: Expired due to Fees
First Claim
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1. A power generating device comprising:

  • a generator, which is coupled to a drive unit, and is connected via a rectifier to a DC voltage intermediate circuit, an inverter, which is connected to the DC voltage intermediate circuit and, on the AC voltage output side, has n phases with n AC voltage connections, and a filter arrangement, which is connected to the AC voltage connections, wherein the filter arrangement has a first filter inductance and a second filter inductance, which is connected in series with the first, for each AC voltage connection, and a filter capacitor is connected to the junction point of the first filter inductance and the second filter inductance, wherein the filter capacitors are connected to one another in a star circuit at a star point, wherein the star point is connected to ground potential, wherein a balancing apparatus is provided, which is connected to the DC voltage intermediate circuit and is formed from two series-connected controllable power semiconductor switches, each having a back-to-back parallel-connected diode, and wherein the junction point of the power semiconductor switches is connected to the star point.

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