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Management Of Battery Capacity

  • US 20150021991A1
  • Filed: 10/10/2014
  • Published: 01/22/2015
  • Est. Priority Date: 04/12/2012
  • Status: Active Grant
First Claim
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1. A method for providing selective electricity grid modulation from a backup battery system for a facility which is connected to the grid, comprising:

  • providing one or more batteries in the backup battery system;

    providing a converter for converting from AC to DC for charging the batteries from the grid, and an inverter for converting from DC to AC to supply the facility load and to selectively supply the grid;

    selectively connecting the inverter AC output to the grid and modulating to provide grid regulation;

    designating at least some of the batteries for use as both a backup supply for said facility and for grid regulation;

    designating a first part of a capacity of said batteries for use as a backup supply;

    designating a second part of the capacity of said batteries for use for grid regulation; and

    selectively charging the second part from the grid via the converter, or selectively discharging the second part via the inverter to the grid.

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