Storage battery control apparatus, storage battery control method, and storage battery system
First Claim
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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Accused Products
Abstract
A storage battery control apparatus includes: a storage battery state detection unit which obtains a remaining SOC which is an SOC of a storage battery at the start of a supply and demand control period; an offset power value determination unit which determines an offset power value that is a power value indicating charge or discharge; an adjustment instruction value obtainment unit which obtains an adjustment instruction value indicating a state of charge and discharge of the storage battery; and a charge and discharge control unit which 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 which is a power value obtained by adding the offset power value to the adjustment instruction power value indicated by the adjustment instruction value.
14 Citations
16 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16)
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14. A storage battery control method for controlling 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 method comprising:
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obtaining a remaining state of charge (SOC) which is an SOC of the storage battery at a start of the supply and demand control period; determining 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; obtaining 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 performing 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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Specification