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Storage battery control apparatus, storage battery control method, and storage battery system

  • US 9,620,979 B2
  • Filed: 11/08/2013
  • Issued: 04/11/2017
  • Est. Priority Date: 11/13/2012
  • Status: Active Grant
First Claim
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1. A storage battery control apparatus which controls charge and discharge of the storage battery to adjust power supply and demand of a grid in a supply and demand control period, the storage battery control apparatus comprising:

  • a first obtainer that obtains a remaining state of charge (SOC) which is an SOC of the storage battery at a start of the supply and demand control period;

    an offset power value determiner that determines an offset power value which is a power value indicating charge or discharge and is a reference of the charge and discharge of the storage battery in the supply and demand control period, the offset power value being determined using a difference between the remaining SOC and a target SOC, and the target SOC being (i) a target value of the SOC of the storage battery at an end of the supply and demand control period and (ii) a fixed value less than 100% of a capacity of the storage battery;

    a second obtainer that obtains an adjustment instruction value which is an instruction value of the charge and discharge of the storage battery and indicates a change amount of a power value from a predetermined reference power value; and

    a charge and discharge controller that performs control of discharging power from the storage battery to the grid or charging power from the grid to the storage battery, the power having a magnitude of a first power value that is a power value obtained by adding the offset power value to an adjustment instruction power value that is a power value indicated by the adjustment instruction value.

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