Power system
The power grid system uses a power compensator to manage the charge/discharge of storage batteries and hydrogen systems based on target SOC and historical data, addressing over-discharging and over-charging issues, thereby stabilizing energy supply and demand.
JP2025132028APending Publication Date: 2025-09-10MEIDENSHA CORP
Patent Information
- Application Number
- JP2024029330
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2025-09-10
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Figure 2025132028000001_ABST
Abstract
To suppress over-discharge and over-charge in a power system that would prevent energy supply and demand control by storage battery.SOLUTION: A renewable energy generator 2 is connected to a DC bus 5 via a first power converter DC / DC 1. A storage unit 3 is also connected to the DC bus 5 via a second power converter DC / DC 2. Furthermore, a hydrogen system is provided to charge and discharge the storage unit 3. The hydrogen system includes an electrolysis device EC that decomposes electricity into hydrogen, a hydrogen tank 4 that stores hydrogen, and a fuel cell FC that converts hydrogen back into electricity. The power compensator controlling the hydrogen system determines the charge / discharge amount of the hydrogen system for the next predetermined period so as to maintain the SOC of the storage battery near a target value at the start and end of the predetermined period.SELECTED DRAWING: Figure 8
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Citation Information
Patent Citations
DC Bus Control System
JP6923231B2
Direct-current bus control system
WO2021200902A1