JP-7856737-B2 - management device

Inventors

• 清家 匡
• 蓑田 愛
• 前田 征児

Assignees

• ＥＮＥＯＳ株式会社

Dates

Publication Date

20260511

Application Date

20241218

Claims (11)

1. A management device for managing a plurality of energy supply units that supply energy and a plurality of energy consumption units that consume the energy, The management device creates an energy supply plan by the multiple energy supply units based on the power supply and demand adjustment command, the supply and demand adjustment capacity of each of the multiple energy supply units, and the remaining energy of each of the multiple energy consumption units . The supply plan includes supplying the energy from the plurality of energy supply units to the plurality of energy consumption units, When the management device adjusts the amount of energy supplied based on the power supply and demand adjustment command, it updates the supply plan so that the adjustment time for the amount of energy supplied by the multiple energy supply units is longer than the adjustment time for power supply and demand. Management device.
2. The management device creates the supply plan based on the hourly electricity rates of the commercial power grid. The control device according to claim 1.
3. The management device creates the supply plan based on the predicted values of the energy consumption by the plurality of energy consumption units. The control device according to claim 2.
4. The management device determines the allocation ratio of the amount of energy supplied by the multiple energy supply units based on the supply and demand adjustment capacity of each of the multiple energy supply units. The control device according to claim 1.
5. The supply and demand adjustment capacity of the aforementioned multiple energy supply units is based on the adjustment capacity of each of the aforementioned multiple energy supply units. The control device according to claim 1.
6. The adjustment margin of the plurality of energy supply units is based on the supply margin of each of the plurality of energy supply units. The control device according to claim 5 .
7. The management device receives information regarding the plurality of energy consumption units. The control device according to claim 1.
8. The information relating to the aforementioned multiple energy consumption units includes the amount of hydrogen stockpiled at off-site hydrogen stations that consume hydrogen. The control device according to claim 7 .
9. The management device receives the remaining energy of each of the multiple energy consumption units and the predicted energy consumption. The control device according to claim 1.
10. The management device transmits information regarding the supply plan to the plurality of energy supply units. The control device according to claim 1.
11. The aforementioned energy is hydrogen, The aforementioned multiple energy consumption units are off-site hydrogen stations that consume hydrogen. The aforementioned multiple energy supply units are on-site hydrogen stations or hydrogen production sites that supply hydrogen. The control device according to claim 1.

Description

This invention relates to a control device. In recent years, hydrogen has attracted attention as a clean energy source, and fuel cell vehicles that use hydrogen as fuel are becoming more widespread. For the further proliferation of fuel cell vehicles, it is necessary to develop hydrogen refueling stations as a fuel supply infrastructure. At hydrogen stations, hydrogen is compressed and stored in accumulators, and the high-pressure hydrogen is then used to fill fuel cell vehicles via dispensers. Hydrogen fuel is produced by methods such as steam reforming of city gas or liquefied petroleum gas, or dehydrogenation of organic hydrides such as methylcyclohexane. Generally, there are two types of hydrogen refueling stations: on-site and off-site. On-site stations produce hydrogen using their own hydrogen production equipment and supply it to fuel cell vehicles. Off-site stations, on the other hand, procure hydrogen produced at other locations and supply it to fuel cell vehicles. Hydrogen is transported using hydrogen trailers and hydrogen carriers. In recent years, the amount of electricity generated from renewable energy sources such as solar and wind power has been expanding. Because the amount of electricity generated from renewable energy sources fluctuates significantly over time, adjustment capabilities are needed to balance the supply and demand of electricity. For example, a supply and demand adjustment system has been proposed that uses surplus electricity from renewable energy sources to produce and store hydrogen, which is then transported to hydrogen refueling stations for use or for power generation. Japanese Patent Publication No. 2014-111984Japanese Patent Publication No. 2019-144897 This diagram schematically shows the configuration of a hydrogen station according to an embodiment.Figures 2(a) to 2(c) are graphs showing an example of a hydrogen supply and demand plan.Figures 3(a) and 3(b) are graphs showing examples of updated hydrogen production plans.This diagram schematically shows the configuration of a hydrogen supply system according to an embodiment.This flowchart shows the flow of the hydrogen supply and demand management method according to the embodiment. Before describing the invention in detail, let's first outline it. This embodiment relates to a hydrogen station for supplying hydrogen to a hydrogen fuel cell vehicle, and more particularly to a hydrogen station equipped with a water electrolysis device for producing hydrogen. The water electrolysis device can produce hydrogen on-site by electrolyzing water using electricity supplied from the commercial power grid. In commercial power grids, balancing electricity supply and demand is necessary to ensure a stable power supply. Power companies operating these grids respond to fluctuations in electricity demand by combining diverse power generation methods. In recent years, the amount of electricity generated from renewable energy sources such as wind and solar power has been increasing. However, because the amount of electricity generated is dependent on weather conditions such as wind and sunshine, it is difficult to artificially control the amount of electricity generated. Therefore, instead of simply adjusting the amount of electricity supplied, demand response mechanisms are being increasingly used to balance electricity supply and demand by adjusting electricity demand. In demand response, consumers adjust their electricity consumption to address the gap between electricity supply and demand. Consumers who adjust their consumption receive compensation commensurate with the amount they adjust. For example, if electricity supply from solar power increases during good weather, leading to a shortage of electricity demand, consumers adjust their consumption to compensate. Conversely, if electricity supply from solar power decreases during bad weather, leading to an excess of electricity demand, consumers adjust their consumption to compensate. Electricity supply and demand adjustments are sometimes managed through intermediaries called aggregators. Aggregators divide the adjustment target requested by electricity suppliers into smaller amounts and distribute them to numerous consumers, enabling them to coordinate their electricity consumption adjustments. There are also demand response bidding systems; consumers can bid for the adjustment amount mandated by electricity suppliers or aggregators, acquiring the right to adjust their consumption and receiving compensation based on their adjustment performance. Real-time adjustment is required for supply and demand adjustments in the commercial power grid, meaning that adjustments must be provided within a short timeframe, such as within 5 minutes or 30 minutes. Furthermore, when providing power supply and demand adjustments, it is necessary to continuously adjust power consumption over a specified period, such as 30 minutes or 1 hour. In this embodiment, adjustments are provided to mitigate