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Electric power generating system for multiple sources and interface to an AC grid

  • US 8,264,100 B2
  • Filed: 09/11/2009
  • Issued: 09/11/2012
  • Est. Priority Date: 09/11/2009
  • Status: Active Grant
First Claim
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1. An electric power generating system comprising:

  • a plurality of variable power sources including at least one source of DC power and at least one source of AC power;

    upstream converters for converting power supplied by said plurality of power sources to a common source of power communicated to a common collector bus;

    a power grid for supplying three-phase power to components requiring three-phase power, and downstream on said common collector bus;

    downstream converters for providing said three phases of power to said power grid from said common collector bus;

    said common collector bus being a high voltage DC bus;

    a DC link inverter being positioned intermediate said common collector bus and said downstream converters, and said DC link inverter providing power to motor driven loads;

    said downstream converters being DC to AC converters with modulation to change DC power from said common collector bus to a phase of AC power for delivery to said three-phase power grid; and

    said converters including a high frequency converter, a transformer, and a single pole bi-directional switch, and there are at least 3 of said converters to provide 3 phases of AC power.

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