JP2022188724A - Charging control device and charging station - Google Patents

Abstract

To perform power supply that can respond to fluctuating demand and considers environmental load.SOLUTION: A charging control device includes determining means for determining at least one of the output and combination of a plurality of generators powered by a hydrogen internal combustion engine, drive control means for driving the generator with the determined output or combination, and supply control means for supplying the power generated by the generator to a battery to be charged.SELECTED DRAWING: Figure 6

Description

The present invention relates to a charging control device and a charging station.

Due to the increasing demand for EVs, the establishment of a supply infrastructure for quick charging stations has become an urgent task. Patent Literature 1 below proposes a charging station capable of rapid charging by combining an internal combustion engine using a fossil fuel and a rapid charger.

Utility Model Registration No. 3221529

However, power transmission to EV charging stations, which repeats sudden power supply and stop, has a large environmental and economic burden, such as power generation for variable loads derived from fossil fuels and construction of transmission lines to remote areas. In particular, it was difficult to set up a charging station that could handle fluctuating demand and take into account the environmental load, especially when it is necessary to charge a vehicle with a large battery such as a truck that requires a large amount of current.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a technology capable of coping with fluctuating demand and supplying power in consideration of environmental load.

In order to achieve the above object, one aspect of the present invention is
determining means for determining at least one of the output and combination of a plurality of generators powered by the hydrogen internal combustion engine;
drive control means for driving the generator with the determined output or combination;
supply control means for supplying the power generated by the generator to a battery to be charged;
It is a charging control device having

Advantageous Effects of Invention According to the present invention, it is possible to supply electric power in consideration of environmental loads while responding to fluctuating demand.

FIG. 2 is a diagram showing an example of a charging station; FIG. FIG. 2 is a diagram showing an example of a charging station; FIG. FIG. 2 is a diagram showing an example of a charging station; FIG. It is a figure which shows the outline of a structure of a charge control system. It is a block diagram which shows the hardware constitutions of a charge control apparatus. 2 is a functional block diagram showing an example of a functional configuration of a charging control device; FIG. FIG. 4 is a diagram showing thermal efficiency with respect to output; FIG. 2 is a diagram showing types of H2ICE generators; 4 is a flowchart showing the operation of charging control processing; FIG. 3 is a diagram showing an example of a combination of H2ICE generators;

(embodiment)
<Overview>
At present, the number of automobiles owned in Japan is approximately 75 million (approximately 60 million passenger cars, approximately 15 million trucks, etc.), of which electric vehicles account for less than 1%. In the future, as the ratio of electric vehicles increases, it is expected that the amount of power supplied from the power system (grid) will be insufficient. Here, the power system is an existing system that integrates power generation, power transformation, power transmission, and power distribution for supplying power to power receiving equipment.

In addition, due to the increase in capacity of batteries mounted on electric vehicles and the significant improvement in C (Capacity) rate, there is a demand for charging a truck battery (for example, 1 MWh) to about 80% in 15 minutes. , it is expected that the instantaneous load on the power system will exceed the allowable range. On the other hand, it is conceivable to provide a storage battery to cope with the momentary load, but there is also a problem that the cost for providing the storage battery is high.

Therefore, in this embodiment, a charging station (EV charging station) that supplies electric power to an electric vehicle or the like will be described.
The power supplied by the charging station in this embodiment is power generated by a plurality of generators powered by a hydrogen internal combustion engine.
A hydrogen internal combustion engine is an internal combustion engine that uses hydrogen as fuel. Since the hydrogen internal combustion engine uses hydrogen gas as fuel, it does not generate carbon dioxide (a greenhouse gas). Hereinafter, the hydrogen internal combustion engine is referred to as "H2ICE (H2 Internal Combustion Engine)".
In addition, since the generator used in this embodiment is driven by the power of the above-mentioned hydrogen internal combustion engine, it is possible to reduce the environmental load compared to generators using conventional fossil fuels (gasoline and diesel). can. Hereinafter, the generator driven by the power of the hydrogen internal combustion engine will be referred to as "H2ICE generator".

While the charging station according to the present embodiment supplies electric power to electric vehicles, it can also be used for fuel cell vehicles (FCV: Fuel Cell Vehicle), hydrogen internal combustion engine vehicles (H2ICEV: H2 Internal-Combustion Engine Vehicle), etc. Hydrogen (high-pressure gas or liquefied hydrogen) can also be supplied (filled).
The object to which power is supplied by the charging station is not limited to an electric vehicle (EV), and may be a plug-in hybrid vehicle (PHV), a battery itself, or the like.

Hereinafter, this embodiment will be described with reference to the drawings. 1 to 3 are diagrams showing an example of a charging station.

FIG. 1 is a diagram showing an example (pattern 1) of the charging station CS.
The charging station CS shown in FIG. 1 includes a renewable energy RE, an (on-site type) hydrogen generator HG, a hydrogen tank HT, a booster/dispenser BD, and an H2ICE generator EG.
The charging station CS supplies electric power obtained from renewable energy RE (for example, solar power generation, wind power generation, hydraulic power generation, biomass power generation, geothermal power generation, etc.) to the hydrogen generator HG to generate hydrogen. The produced hydrogen is stored in the hydrogen tank HT.
Then, the charging station CS uses the booster/dispenser BD to fill the fuel cell vehicle FCV and the hydrogen fuel engine vehicle H2ICEV with the generated hydrogen.
In addition, the charging station CS supplies the electric vehicle EV with electric power generated by the generator EG driven by the power of the internal combustion engine fueled by the generated hydrogen.
Also, the charging station CS may supply electric power obtained from renewable energy RE to the electric vehicle EV.
The charging station CS shown in FIG. 1 can generate and supply hydrogen and supply electric power in an independent environment (local; off-grid) by using renewable energy RE as a power source. Most of the cost of hydrogen for power generation is the storage and transportation of hydrogen, which is a bottleneck to demand. desirable.
The charging station CS shown in FIG. 1 can also supply power to the power system, for example, in an emergency.

FIG. 2 is a diagram showing an example (pattern 2) of a charging station.
The charging station CS shown in FIG. 2 includes a hydrogen tank HT, a booster/dispenser BD, and an H2ICE generator EG.
The charging station CS stores in a hydrogen tank HT hydrogen produced in an external hydrogen production plant HP and transported by a hydrogen transport lorry HV. Then, the charging station CS uses the booster/dispenser BD to fill the fuel cell vehicle FCV and the hydrogen fuel engine vehicle H2ICEV with the generated hydrogen.
In addition, the charging station CS supplies the electric vehicle EV with electric power generated by the generator EG driven by the power of the internal combustion engine fueled by the generated hydrogen.
The charging station CS shown in FIG. 2 can constitute a small-scale charging station CS by obtaining hydrogen from the outside.

FIG. 3 is a diagram showing an example (pattern 3) of the charging station CS.
The charging station CS shown in FIG. 3 includes an MCH storage tank MT, a hydrogen desorption device HD, a hydrogen tank HT, a booster/dispenser BD, and an H2ICE generator EG.
The charging station CS stores methylcyclohexane (MCH) produced at an external chemical plant CP and transported by pipeline in an MCH storage tank MT. Here, methylcyclohexane is one of hydrogen carriers and is a liquid (a kind of organic hydride) produced by adding hydrogen to toluene. Then, the charging station CS desorbs hydrogen from the stored methylcyclohexane using the hydrogen desorption device HD. The desorbed hydrogen is stored in the hydrogen tank HT. Toluene produced by desorption of hydrogen is recovered and transported again to the external chemical plant CP via a pipeline. That is, the recovered toluene is circulated and reused in the chemical plant CP. In the chemical plant CP, hydrogen is added to the recovered toluene to produce methylcyclohexane, which is transported to the charging station CS via a pipeline.
Then, the charging station CS uses the booster/dispenser BD to fill the fuel cell vehicle FCV and the hydrogen fuel engine vehicle H2ICEV with the generated hydrogen.
In addition, the charging station CS supplies the electric vehicle EV with electric power generated by the generator EG driven by the power of the internal combustion engine fueled by the generated hydrogen.
As shown in FIG. 3, an organic hydride (eg, methylcyclohexane) is transported by pipeline from the chemical plant CP to the charging station CS, if it can be safely transported by pipeline. Furthermore, the organic matter (eg toluene) after dehydrogenation is returned from the charging station CS to the chemical plant CP. Such a circulating method is effective, for example, in a charging station CS adjacent to a factory. Incidentally, in the charging station CS or the like far from the factory, methylcyclohexane may be transported from the chemical plant CP to the charging station CS by a transportation truck (vehicle) instead of being transported by a pipeline. Similarly, the toluene may be transported from the charging station CS to the chemical plant CP in a transport lorry instead of in a pipeline.
Note that the charging station CS may use the exhaust heat of the generator EG for the hydrogen desorption described above. This makes it possible to supply and produce hydrogen more efficiently and economically.

<System configuration>
FIG. 4 is a diagram showing an overview of the system configuration of the charging control system SS according to this embodiment. A charging control system SS according to this embodiment includes a charging control device 1 provided in a charging station and a plurality of H2ICE generators EG. Note that the charging control device 1 may be provided outside the charging station. In this case, the charging control device 1 may control the H2ICE generator EG by communicating via a network including the Internet.

<Hardware configuration>
FIG. 5 is a block diagram showing the hardware configuration of the charging control device 1 according to this embodiment. The charging control device 1 includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, a bus 14, an input/output interface 15, an output section 16, and an input section. 17 , a storage unit 18 , a communication unit 19 and a drive 20 .

The CPU 11 executes various processes according to programs recorded in the ROM 12 or programs loaded from the storage unit 18 to the RAM 13 . The RAM 13 also stores data necessary for the CPU 11 to execute various processes. The CPU 11 , ROM 12 and RAM 13 are interconnected via a bus 14 . An input/output interface 15 is also connected to this bus 14 .

An output unit 16 , an input unit 17 , a storage unit 18 , a communication unit 19 and a drive 20 are connected to the input/output interface 15 . The output unit 16 includes a display, a speaker, and the like, and outputs various information as images and sounds. The input unit 17 is composed of a keyboard, a mouse, etc., and inputs various kinds of information. The storage unit 18 is composed of a hard disk, a DRAM (Dynamic Random Access Memory), or the like, and stores various data. The communication unit 19 communicates with other devices via a network N including the Internet.

A removable medium 21 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory is mounted in the drive 20 as appropriate. A program read from the removable medium 21 by the drive 20 is installed in the storage section 18 as necessary. In addition, the removable medium 21 can also store various data stored in the storage section 18 in the same manner as the storage section 18 .

<Functional configuration>
FIG. 6 is a functional block diagram showing an example of the functional configuration of the charging control device 1 according to this embodiment. The CPU 11 according to this embodiment functions as a reception unit 31 , a setting unit 32 , a determination unit 33 , a drive control unit 34 and a supply control unit 35 .

The reception unit 31 receives connection of the electric vehicle EV to the charging station CS. In addition, when accepting the connection of the electric vehicle EV, the accepting unit 31 accepts the number of connected electric vehicles EV, the battery capacity, and the state of charge of the battery (SoC: StateOfCharge). The state of charge of the battery can be determined by, for example, a method of measuring the voltage of the battery cell, a method of integrating the input/output current of the battery pack (coulomb counting), or the like. The reception unit 31 stores the received information in the reception information DB 41 . For information received by the receiving unit 31, the received information DB 41 is referred to below.
Note that the reception unit 31 may receive information such as departure time, required charging time, charging setting (rapid charging or normal charging), battery life, temperature, etc. from the user of the electric vehicle EV. The required charging time is the time that can be required for charging (expected time that the user will continue to connect the electric vehicle EV to the charging station CS). Specific values such as 1 hour and 8 hours are given as the required charging time. In the present embodiment, the term "rapid charge" refers to charging a nearly empty battery (state of charge: 0%) to 80% in about 15 to 30 minutes. .
Note that the receiving unit 31 may receive a charging demand from (for example, a nearby) electric vehicle EV via the network N (and the communication unit 19). The reception unit 31 may also receive, via the network N, the position of the electric vehicle EV and the distance between the electric vehicle EV and the charging station CS.
Note that the receiving unit 31 may receive that it is an emergency. For example, in case of emergency, the charging station CS can supply power to the external power system PS. In this case, the receiving unit 31 may receive the power generation demand (power generation amount) from the administrator of the power system PS.
In this embodiment, the battery is described as an example of a lithium-ion battery, but the type of battery is not particularly limited.

Based on the information received by the receiving unit 31, the setting unit 32 sets whether the charging is rapid charging or normal charging (slow charging) (variable load). For example, the setting unit 32 sets whether or not to perform rapid charging based on the state of charge (SoC) of the battery to be charged, the required charging time, and the like. Generally, fast charging is possible when the state of charge of the battery is between 15% and 75%. However, there is non-linearity in the amount of charge due to the internal resistance of the battery, and when the state of charge of the battery is 75% or more, the required power drops, so slow charging is performed. For this reason, in order to change the state of charge of the battery from 75% to 100%, it takes several times the required charging time from 15% to 75%. As the power supply to the vehicle decreases, the number of electric vehicles EV that can be charged with the same power will increase. For example, by performing such low-speed charging at night when the required charging time is long, it is possible to simultaneously charge several times the number of vehicles that can be charged quickly at the charging station CS. Note that the required charging time may be calculated from the departure time, for example. Further, the setting unit 32 may set whether or not to perform rapid charging according to battery life, temperature, and the like. For example, if a predetermined number of years have passed since the battery was manufactured, or if the temperature of the battery is equal to or higher than a predetermined temperature, the setting unit 32 sets to perform low-speed charging instead of quick charging. good too.

The setting unit 32 also sets the charging capacity (power demand; charging demand) based on the information received by the receiving unit 31 .
The charge capacity is the total chargeable capacity of the battery to be charged. In this embodiment, the charging capacity is set based on the number of electric vehicles EV, the size of the battery capacity, the state of charge, and the like. For example, when there are six electric vehicles EV, each battery capacity is 50 kWh, and the state of charge of each battery is 0%, the setting unit 32 sets 300 kWh as the charge capacity.
Note that the setting unit 32 may predict demand for charging based on the information received by the receiving unit 31 . Thereby, the charging station CS can make an operation plan such as which electric vehicle EV needs what energy (for example, hydrogen or electric power) and how much.
Further, for example, the setting unit 32 may perform preliminary power storage in a storage battery that is provided in advance according to the demand forecast. As a result, the charging station CS can maintain the operating rate and smooth the power demand so as not to be biased. Note that the CPU 11 may transmit information to (for example, nearby) electric vehicles EVs via the network N in order to facilitate smoothing. For example, the CPU 11 may transmit current congestion information and future congestion prediction information to the electric vehicle EV so that the electric vehicle EV can come to the charging station CS avoiding times when charging demand is high.
Further, for example, the setting unit 32 may predict the allowable power supply time (operation schedule). For example, the setting unit 32 can predict fast charging (charging with a short permissible power supply time) in the daytime and low-speed charging (charging with a long permissible power supply time) at night. Also, for example, the setting unit 32 may make a prediction based on the allowable power supply time during charging in the past.

Further, the setting unit 32 sets the power generation demand (power demand) based on the information received by the receiving unit 31 in an emergency or the like.
The power generation demand is the amount of power generation required in an emergency or the like. For example, the demand for power generation in an external electric system and the demand for power generation at home are applicable. Note that the value received by the receiving unit 31 may be set as the power generation demand.

The determining unit 33 (determining means) determines outputs of the plurality of H2ICE generators EG driven by the power of the hydrogen internal combustion engine. For example, in the case of the H2ICE generator EG capable of charging up to four electric vehicles EV, the determining unit 33 determines the output of the H2ICE generator EG according to the number of electric vehicles EV to be charged as follows.
Output of H2ICE generator EG when charging one electric vehicle EV: 25%
Output of H2ICE generator EG when charging two electric vehicles EV: 50%
Output of H2ICE generator EG when charging 3 electric vehicles EV: 75%
Output of H2ICE generator EG when charging 4 electric vehicles EV: 100%

Further, the determining unit 33 determines a combination of a plurality of H2ICE generators EG driven by the power of the hydrogen internal combustion engine. In this embodiment, the determining unit 33 refers to the generator information DB 42 registered in advance and acquires information on a plurality of H2ICE generators EG. Information on the plurality of H2ICE generators EG may be acquired by the reception unit 31 .
In this embodiment, the charging station CS shall have a plurality of generators with different rated outputs. For example, the charging station CS has a plurality of each of three types of H2ICE generators EG: small, medium, and large. As a result, it is possible to perform control such as switching to a more economical large H2ICE generator EG according to an increase in demand.
Here, the higher the output (engine speed) of the generator, the higher the thermal efficiency up to a certain speed. Therefore, it is desirable to control the power generation amount of the charging station CS as a whole by driving the power generators with an output having the highest thermal efficiency and controlling the number and type of power generators to be driven. Therefore, in this embodiment, the determining unit 33 determines the combination of the H2ICE generators EG to be driven based on the fluctuating load (load) and demand.
Note that the determination unit 33 may determine the combination of multiple H2ICE generators EG as described above based on the charging demand predicted by the setting unit 32 . Based on the predicted charging demand, for example, in the case of the charging station CS shown in FIG. 1, it is possible to adjust the amount of hydrogen to be produced and to charge a storage battery provided in advance. As a result, when an increase in charging demand is predicted in the future, multiple engines can be operated with high efficiency in consideration of the charging demand (prediction) and the like.

FIG. 7 is a diagram showing thermal efficiency with respect to output. In FIG. 7, the relationship between the thermal efficiency (%) and the output (load) (KW) when power is generated by a fuel cell (FC) using hydrogen, and the output (load) when power is generated by a hydrogen internal combustion engine (H2ICE) An example is shown with the relationship of thermal efficiency (%) to (KW). Here, thermal efficiency is the ratio of energy input as heat that is converted into electrical energy (electric power). In fuel cells using hydrogen, the efficiency decreases as the output increases. In addition, in a fuel cell, if the output is increased, more power is required to rotate the internal fan strongly, resulting in a further decrease in efficiency. On the other hand, in the hydrogen internal combustion engine, the higher the output, the higher the efficiency up to a certain rotational speed (in the example of FIG. 7, the value on the horizontal axis is near p). In this embodiment, as described above, the H2ICE is driven with the most thermally efficient output, and the number and types of generators to be driven are controlled, thereby efficiently controlling the power generation amount of the entire charging station CS.

8A to 8C are diagrams showing types of H2ICE generators EG used in this embodiment. In this embodiment, as shown in FIGS. 8A to 8C, three types of generators are used: small, medium, and large. In this way, in the output of the H2ICE generator EG, an example will be described in which about N (N is a natural number) times the small size is the medium size, and about N times the medium size is the large size. Also, in this embodiment, an example in which three generators are used will be described. The type and number of generators are not particularly limited.

The drive control unit 34 (drive control means) shown in FIG. 6 drives the H2ICE generator EG with the output or combination determined by the determination unit 33 .

The supply control unit 35 (supply control means) shown in FIG. 6 supplies electric power generated by the H2ICE generator EG to the electric vehicle EV (battery) connected to the charging station CS. In addition, the supply control unit 35 causes the electric power generated by the H2ICE generator EG to be supplied to the electric power system PS in an emergency.

<Process content>
FIG. 9 is a flow chart showing the operation of the charging control process according to this embodiment.

In step S1, the reception unit 31 determines whether or not there is an emergency. If it is not an emergency, the process proceeds to step S2, and if it is an emergency, the process proceeds to step S8.

In step S2, the accepting unit 31 accepts the connection. The reception unit 31 also receives the number of electric vehicles, the capacity of the battery, and the state of charge.

In step S3, the setting unit 32 sets the charging capacity based on the number of electric vehicles EV, the size of the battery capacity, the state of charge, and the like.

In step S4, the setting unit 32 sets (for each battery) whether or not to perform rapid charging based on the state of charge (SoC) of the battery to be charged and the required charging time.

In step S5, the determining unit 33 determines the generator output and combination based on the charging capacity and the presence or absence of quick charging. As described above, the determining unit 33 determines the combination of generators so that the electric power that satisfies the demand can be output when the H2ICE generator EG is driven at the most efficient rotation speed. Examples of combinations of generators determined by the determination unit 33 will be described later with reference to FIG. 10 .

In step S6, the drive control unit 34 drives the H2ICE generator EG with the output or combination determined in step S5.

In step S7, the supply control unit 35 supplies the electric power generated by the H2ICE generator EG to the electric vehicle EV (battery) connected to the charging station CS. When a plurality of electric vehicles EV are connected, the supply control unit 35 supplies electric power corresponding to the size of the battery capacity, the state of charge, and the presence/absence of rapid charging in each electric vehicle EV. Note that the supply control unit 35 may supply electric power obtained from renewable energy to the electric vehicle EV, as shown in FIG. 1 .

In step S8, the setting unit 32 sets the power generation demand in case of an emergency. For example, when power is supplied to the power system PS (grid), the setting unit 32 sets the power generation demand (power generation amount) received by the receiving unit 31 .

In step S9, the determination unit 33 determines the output and combination of generators based on the power generation demand set in step S8. Note that the determining unit 33 may determine all the H2ICE generators EG included in the charging station CS as objects to be driven so as to maximize the amount of power generation in an emergency.

In step S10, the drive control unit 34 drives the H2ICE generator EG with the output or combination determined in step S9.

In step S11, the supply control unit 35 causes the electric power generated by the H2ICE generator EG to be supplied to the electric power system PS connected to the charging station CS.

<Generator combination example>
FIG. 10 is a diagram showing an example of a combination in the H2ICE generator EG. The control of the H2ICE generator EG in FIG. 10 is an example based on conditions 1 to 4 below.
Condition 1. H2ICE generator EG installed at charging station CS: 3 units of 250KW generators, 1 unit of 1MW generator Condition 2. Assumed customer: Electric vehicle EV of 200KW to 250KW
Condition 3. Number of charging ports: 6 ports Condition 4. Output control of H2ICE generator EG: Operate according to load conditions (required charging time, SoC, battery life, capacity, temperature, number of units, etc.) in a high output range with good thermal efficiency (e.g., 80% output)

In this embodiment, as shown in FIG. 10, the H2ICE generator EG is driven according to the number of electric vehicles EV connected to the charging port. For example, when charging one electric vehicle EV described above, one 250 KW generator (No. 1) is operated. Also, when charging two electric vehicles EV as described above, two 250 KW generators (No. 1 and 2) are operated.
Here, when charging three electric vehicles EV as described above, one 1 MW (1000 KW) generator is operated (250 KW generators (No. 1 and 2) are stopped). This is because switching to one large-sized generator with the same total output is more economical than operating a plurality of small-sized generators.
Similarly, when charging four electric vehicles EV as described above, one generator of 250 KW (No. 1) and one generator of 1 MW are operated. Further, when charging five electric vehicles EV as described above, two 250 KW generators (No. 1 to 2) and one 1 MW generator are operated. Furthermore, when charging six electric vehicles EV as described above, three generators of 250 KW (No. 1 to 3) and one generator of 1 MW are operated.

<Advantageous effects of the present embodiment>

According to the above-described embodiment, by changing the combination of the large H2ICE generator and the small H2ICE generator according to the fluctuating load and demand, it is possible to provide a charging station that realizes the optimization of thermal efficiency. can.

In addition, according to the above-described embodiments, the capacity of the existing power system is increased by providing a charging station that supplies power to large, high C-rate electric vehicles and batteries that require large amounts of power in short bursts. You can prevent it from surpassing.

In addition, according to the above-described embodiment, electric power generated by a method that does not use fossil fuels can be supplied to electric vehicles, so even if the number of owned electric vehicles increases in the future, the burden on the existing electric power system will be suppressed. It is possible to provide a charging station with a low environmental load (without relying on power supply from the power system, that is, in a local environment).

In addition, according to the above-described embodiment, the hydrogen used in the H2ICE generator can operate even with low-purity industrial grade hydrogen compared to the hydrogen used in the fuel cell, so the H2ICE generator was used. Charging has advantages other than efficiency over charging using fuel cells.

Also, the charge station of the above-described embodiment can function as both an EV charge station and a hydrogen station by storing hydrogen in common for electric vehicles (for power generation) and fuel cell vehicles.

Further, according to the above-described embodiments, by supplying power to the power system (grid) in an emergency, for example, when the power infrastructure fails due to a disaster or the like, hydrogen can be stored in advance or supplied from the outside. By being supplied, it can function as a power generation facility.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within the range that can achieve the object of the present invention are included in the present invention. is.

(Modification)
In the embodiments described above, the determination of the H2ICE generator output or combination may be made periodically at predetermined intervals. As a result, appropriate power supply can be performed in accordance with fluctuations in load and demand.

Further, in the above-described embodiment, a classifier generated by machine learning may be used to predict charging demand based on the acquired text. Machine learning generated classifiers (AI) may also be used to optimize H2ICE generator outputs and combinations while charging stations learn their own operating efficiency.

Further, in the above-described embodiment, as shown in FIG. 3, the exhaust heat generated by the operation of the H2ICE generator may be used in the hydrogen desorption device. As a result, power supply and hydrogen filling can be performed more efficiently at a charging station that charges an electric vehicle and fills a fuel-fueled vehicle with hydrogen. In addition, it is possible to supply two energies, electricity and heat.

In the above-described embodiment, an example of determining the output and combination of the H2ICE generator was described, but at least one of the output and combination of the H2ICE generator may be determined. As a result, power generation by the hydrogen internal combustion engine can be efficiently controlled.

In the above embodiments, the example of determining the output or combination of the H2ICE generator based on the fluctuating load and the power demand (charging capacity or power generation demand) was described, but based on one of these, the output of the H2ICE generator Or you may decide a combination.

In the above-described embodiments, a generator that generates electricity through a chemical reaction between hydrogen and oxygen may be used. That is, the charging station includes at least one of a generator driven by the power of the hydrogen internal combustion engine and a generator that generates power through a chemical reaction between hydrogen and oxygen, and electric power generated by the generator. can also be regarded as a charging station comprising a supply device for supplying to the battery. This makes it possible to supply hydrogen-derived energy (electric power) with low environmental impact.

In the above embodiment, an example of controlling a plurality of H2ICE generators has been described, but only one H2ICE generator may be controlled. Namely, a generator driven by the power of the hydrogen internal combustion engine, and a charging control that determines the output of the generator, drives the generator with the determined output, and supplies the power generated by the generator to the battery. and a charging station comprising the device.

In the above-described embodiments, the charging station and the electric vehicle may communicate various situations and information with each other via a network such as the Internet line or Wi-fi (mutual communication function). This allows the charging station to perform scheduling (operation planning) and preparatory operations for charging and filling.

The processing executed by each functional unit of the charge control device can also be regarded as a charge control method. That is, a determination step of determining at least one of the output and combination of a plurality of generators driven by the power of the hydrogen internal combustion engine, a drive control step of driving the generator with the determined output or combination, and a supply control step of supplying power generated by the generator to the battery.

The processing executed by each functional unit of the charging control device can also be regarded as a computer program to be executed by a computer. That is, a determination step of determining at least one of the output and combination of a plurality of generators driven by the power of the hydrogen internal combustion engine, a drive control step of driving the generator with the determined output or combination, It can also be regarded as a computer program for causing a computer to execute a supply control step for supplying power generated by the generator to the battery.

In the above-described embodiments, an example was described in which the charging station supplies power to the power grid in an emergency. may be supplied. Also, the charging station may provide power to both the electric vehicle and the power grid, whether in an emergency or not.

Also, for example, the series of processes described above can be executed by hardware or by software. In other words, the functional configuration is merely an example and is not particularly limited. In other words, it is sufficient for the information processing system to have a function capable of executing the series of processes described above as a whole, and there is no particular limitation on what kind of functional block is used to realize this function. Also, the location of the functional block is not particularly limited, and may be arbitrary. For example, functional blocks of one device may be transferred to another device. Conversely, functional blocks of other devices may be transferred to one device or the like. Also, one functional block may be composed of hardware alone, software alone, or a combination thereof.

When a series of processes is to be executed by software, a program constituting the software is installed in a computer or the like from a network or a recording medium. The computer may be a computer built into dedicated hardware. Also, the computer may be a computer capable of executing various functions by installing various programs, such as a general-purpose smart phone or personal computer.

A recording medium containing such a program not only consists of a removable medium (not shown) that is distributed separately from the device main body in order to provide the program to the user, etc., but is also preinstalled in the device main body and stored in the user's memory. It is composed of a recording medium etc. provided for

In this specification, the steps of writing a program recorded on a recording medium are not necessarily processed chronologically according to the order, but may be executed in parallel or individually. It also includes the processing to be performed. Further, in this specification, the term "system" means an overall device composed of a plurality of devices, a plurality of means, or the like.

1: Charging control device EG: H2ICE generator PS: Power system 11: CPU 31: Receiving unit 32: Setting unit 33: Deciding unit 34: Drive control unit 35: Supply control unit

Claims (9)

determining means for determining at least one of the output and combination of a plurality of generators powered by the hydrogen internal combustion engine;
drive control means for driving the generator with the determined output or combination;
supply control means for supplying the power generated by the generator to a battery to be charged;
A charging control device having a the determining means determines the output or combination of the generators based on a variable load or power demand;
The charging control device according to claim 1. The plurality of generators has a plurality of generators with different rated outputs,
The determining means determines a combination of a plurality of generators with different rated outputs,
The charging control device according to claim 1 or 2. The determination means determines the combination of the generators based on the charge capacity of the battery to be charged.
The charging control device according to any one of claims 1 to 3. The determination means determines the combination of the generators based on the required charging time of the battery to be charged.
The charging control device according to any one of claims 1 to 4. The supply control means causes the generated power to be supplied to a power system,
The charging control device according to any one of claims 1 to 5. a charging control device according to any one of claims 1 to 6;
a plurality of generators powered by a hydrogen internal combustion engine;
charging station. at least one of a generator driven by the power of a hydrogen internal combustion engine and a generator that generates power through a chemical reaction between hydrogen and oxygen;
a supply device for supplying power generated by the generator to a battery;
charging station. a generator driven by the power of a hydrogen internal combustion engine;
determining means for determining the power output of the generator;
drive control means for driving the generator with the determined output;
supply control means for supplying power generated by the generator to a battery;
a charging control device having
charging station.

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