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POWER STORAGE SYSTEM AND METHOD OF CONTROLLING THE SAME

  • US 20110208370A1
  • Filed: 12/28/2010
  • Published: 08/25/2011
  • Est. Priority Date: 02/25/2010
  • Status: Active Grant
First Claim
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1. A method of controlling a power storage system which supplies power to a load by connecting the load to a power generation system, a battery, and a grid, the method comprising:

  • when a power failure occurs in the grid, determining whether a duration of the power failure between a beginning and an end of the power failure is more than a standard duration;

    if the duration of the power failure is more than the standard duration, determining whether a charging condition of the battery indicates that a state of charge of the battery is equal to or greater than a standard value;

    if the duration of the power failure is less than the standard duration or if the duration of the power failure is more than the standard duration and the state of charge of the battery is equal to or more than the standard value, performing a first power failure returning mode; and

    if the duration of the power failure is more than the standard duration and the state of charge of the battery is less than the standard value, performing a second power failure returning mode.

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