US 12,431,711 B2
Hydrogen retention amount management system and hydrogen retention amount management method for managing hydrogen retention amount in retention facility
Nobuyuki Orihashi, Toyota (JP); Shigeki Kinomura, Toyota (JP); Tamaki Ozawa, Toyota (JP); and Chiaki Kanda, Nagoya (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Jan. 11, 2022, as Appl. No. 17/572,733.
Claims priority of application No. 2021-013417 (JP), filed on Jan. 29, 2021.
Prior Publication US 2022/0246958 A1, Aug. 4, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 3/38 (2006.01); H02J 15/00 (2006.01)
CPC H02J 3/381 (2013.01) [H02J 15/008 (2020.01); H02J 2300/00 (2020.01); H02J 2300/30 (2020.01)] 5 Claims
OG exemplary drawing
 
1. A retention amount management system that manages an amount of retention of hydrogen in a retention facility where hydrogen is retained, the retention facility being provided in a specific area, a microgrid being set in the specific area, the microgrid including a consumption facility that consumes electric power and a power supply facility that can supply electric power to the consumption facility, the power supply facility including a power generation facility that can generate electric power by using renewable energy and a fuel cell that can generate electric power by using hydrogen retained in the retention facility, a production facility that produces the hydrogen to be retained in the retention facility by using electric power being provided in the specific area, the retention amount management system comprising:
an obtaining apparatus that obtains the amount of retention; and
an adjustment apparatus that adjusts an amount of production of the hydrogen in the production facility such that an amount of retention of the hydrogen retained in the retention facility for a predetermined period attains to a target amount of retention, wherein
the target amount of retention includes a reference amount of retention and an amount of hydrogen corresponding to an amount of surplus electric power in the microgrid,
a period within the predetermined period, anticipating which frequency of occurrence of a disaster is higher than during other periods is set as an emergency period based on history information on the disaster that occurred in the past,
a period within the predetermined period, before the emergency period is set as a preparation period,
a period during which electric power generated per prescribed period by using the renewable energy is higher than a threshold value is set as a stable period, the stable period being a period within the predetermined period other than the emergency period and the preparation period,
a period within the predetermined period, other than the emergency period, the preparation period, and the stable period is set as an ordinary period, and
the adjustment apparatus sets the target amount of retention such that a first amount of hydrogen corresponding to the amount of surplus electric power during the stable period is larger than a second amount of hydrogen corresponding to the amount of surplus electric power during the ordinary period.