Power supply/demand adjusting method and power supply/demand management device
A power supply/demand adjusting method disclosed here is a method for adjusting power supply and demand between a power transmission/distribution system and a storage battery mounted on an electric vehicle. The method includes the steps of: acquiring power selling approval of a storage battery; acquiring battery information of a storage battery for which the power selling approval is acquired based on the acquired power selling approval and power demand information from the power transmission/distribution system; calculating a power selling amount to be transmitted from the storage battery to the power transmission/distribution system, based on the acquired battery information of the storage battery and the acquired power demand information; supplying electric vehicle based on the power selling amount from the storage battery to the power transmission/distribution system; and calculating an incentive to be provided to a user of the electric vehicle based on the power selling amount.
1 . A power supply/demand management device configured or programmed to manage power supply and demand between a power transmission/distribution system and a storage battery mounted on an electric vehicle, the device comprising:
a power selling information management controller configured or programmed to acquire power selling approval of electric power stored in the storage battery;
a battery information acquisition controller configured or programmed to acquire battery information of a storage battery for which the power selling approval is acquired, the battery information including at least a state of charge or battery health of the storage battery;
a power demand information acquisition controller configured or programmed to acquire power demand information from the power transmission/distribution system;
a power selling amount management controller configured or programmed to calculate a power selling amount to be supplied from the storage battery to the power transmission/distribution system, based on the battery information acquired by the battery information acquisition controller and the power demand information acquired by the power demand information acquisition controller;
a power transmission/reception management controller configured or programmed to transmit electric power based on the power selling amount from the storage battery to the power transmission/distribution system; and
an incentive management controller configured or programmed to calculate an incentive to be provided to a user of the electric vehicle based on the power selling amount, wherein
the power selling amount management controller is further configured or programmed to:
the power selling amount management controller stores a predetermined threshold for each of the battery health and the state of charge,
each of the battery health and the state of charge of the storage battery acquired by the battery information acquisition controller is compared with the predetermined threshold, and
if at least one of the battery health or the state of charge of the storage battery is less than the predetermined threshold, the power selling amount is calculated to be zero, and the transmission of electric power from the storage battery is inhibited,
and wherein, if the state of charge and the battery health of the storage battery are not less than the respective predetermined threshold,
compare the calculated power selling amount with a predetermined threshold for the power selling amount,
and if the calculated power selling amount exceeds the threshold for the power selling amount, reduce the calculated power selling amount at least to the predetermined threshold, wherein the predetermined threshold for the power selling amount is a predetermined maximum amount for protecting the storage battery,
and transmit electric power based on the power selling amount.
2 . The power supply/demand management device according to claim 1 , wherein
the power selling information management controller is further configured or programmed to acquire a power selling condition set by a user of the electric vehicle in addition to the power selling approval,
and wherein the power selling amount management controller is further configured or programmed to determine whether the power selling condition is satisfied, and to control the transmission of electric power only if the power selling condition is satisfied, to stop the transmission of electric power if the power selling condition is not satisfied.