Title:
WATER ELECTROLYSIS SYSTEM THAT MANAGES POWER SUPPLY OF RENEWABLE ENERGY
Document Type and Number:
Japanese Patent JP2023172003
Kind Code:
A
Abstract:
To improve utilization efficiency of a water electrolysis device in a water electrolysis system that manages power supply with renewable energy.SOLUTION: A water electrolysis system manages power supply with renewable energy to a system and an electrolytic tank of a water electrolysis device. The water electrolysis system acquires renewable energy power and operation information for a renewable energy device from a power conversion device connected to the renewable energy device, calculates an estimated value of the renewable energy power on the basis of the renewable energy power and the operation information, calculates an estimated value of residual power at a predetermined timing on the basis of the estimated value of the renewable energy power and sold power, calculates an electrolyte power command value by performing a conversion process based an allowable lamp rate of the electrolysis tank on the estimated value of the residual power before the predetermined timing and the estimated value of the residual power at the predetermined timing, and inputs the electrolyte power command value to the power conversion device of the electrolytic tank.SELECTED DRAWING: Figure 2
Inventors:
FURUTA FUTOSHI
WATANABE KEIJI
ISHIKAWA TAKAO
WATANABE KEIJI
ISHIKAWA TAKAO
Application Number:
JP2022083533A
Publication Date:
December 06, 2023
Filing Date:
May 23, 2022
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H02J15/00; C25B1/04; C25B9/00; C25B9/65; C25B15/02; H02J3/32; H02J3/38
Attorney, Agent or Firm:
Patent Attorney Corporation Hiraki International Patent Office
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