JP2013231381A - System and method for generating electrolytic hydrogen, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To strike a balance between stable power generation and high-efficient power generation.SOLUTION: An electrolytic hydrogen generation system includes an AC/DC converting part that converts AC power from a rotating machine of wind power generation into DC power; a first table that indicates a relationship between wind power and both a rotational frequency of the rotating machine and DC power; a second table that indicates a relationship between an electrolytic voltage and electrolytic power to be consumed; an input part to which measured wind power and a measured rotational frequency are input; a first calculation part that evaluates a target rotational frequency and target AC power of the rotating machine; a second calculation part that evaluates a reference electrolytic voltage as the electrolytic voltage; a third calculation part that evaluates a correction electrolytic voltage; an electrolytic addition part that evaluates a target electrolytic voltage; and a voltage control part that controls the AC/DC converting part so that a voltage at DC power converted by the AC/DC converting part corresponds with the target electrolytic voltage.

Description

  Embodiments described herein relate generally to an electrolytic hydrogen generation system that generates hydrogen, an electrolytic hydrogen generation method, and a program.

In recent years, effective use of renewable energy such as wind power generation and solar power generation is desired, and it is expected to become a low-cost large-capacity power source.
Also, in a system equipped with wind power generation and an electrolytic hydrogen generator, if the wind turbine accelerates by changing the electrolysis current of hydrogen according to the rotational speed of the wind turbine so that it stays in the rotational speed range in which the wind power generator can operate Proposals are made to increase the electrolysis current and reduce the electrolysis current if the wind turbine decelerates, to control the rotation of the wind turbine, or to obtain the differential value of the wind turbine rotation speed, and to control the output voltage of the rectifier according to this differential value (For example, refer to Patent Document 1 and Patent Document 2).

JP 2007-252028 A JP-A-2005-73418

  However, in the prior art system, the rotation speed of the windmill is changed according to the wind speed, and power generation stabilization and high-efficiency power generation are not achieved at the same time. There is a problem that dynamic response characteristics are not considered.

  The present invention has been made to solve such a problem, and an object thereof is to provide an electrolytic hydrogen generation system, an electrolytic hydrogen generation method, and a program capable of achieving both stable power generation and high-efficiency power generation. To do.

  In order to solve the above problems, the electrolytic hydrogen generation system of the present invention converts AC power from a rotating device that is rotated by wind power to generate power into DC power for hydrogen generation by electrolysis in an electrolytic hydrogen generator. An AC-DC converter, a first table representing the relationship between wind power applied to the rotating device, the number of rotations of the rotating device and AC power from the rotating device, and electrolysis in the electrolytic hydrogen generator A second table representing the relationship between the electrolysis voltage for the electrolysis and the electrolysis power consumed by the electrolysis, the measurement wind force as a measurement value of the wind force applied to the rotating device, and the measurement of the rotation speed of the rotating device Based on the input unit to which the measured rotational speed as a value is input, the first table and the measured wind force, the first performance for obtaining the target rotational speed of the rotating device and the target AC power from the rotating device. A second arithmetic unit for obtaining a reference electrolytic voltage as an electrolytic voltage for the electrolysis based on the second table and the target AC power, and a difference between the measured rotational speed and the target rotational speed A third operation unit for obtaining a corrected electrolysis voltage for correcting the reference electrolysis voltage, and adding the reference electrolysis voltage and the corrected electrolysis voltage to obtain target electrolysis for electrolysis in the electrolysis hydrogen generator. An electrolytic addition unit for obtaining a voltage, and a voltage control unit for controlling the AC-DC conversion unit so that a voltage at the DC power converted by the AC-DC conversion unit corresponds to the target electrolytic voltage. It is characterized by comprising.

  Moreover, the electrolytic hydrogen generation system of the present invention converts AC power from a plurality of rotating devices that are rotated by wind power to generate electric power into DC power for generating hydrogen by electrolysis in an electrolytic hydrogen generator. A plurality of first tables representing a relationship between a DC converter, wind force applied to the rotating device, rotational speed of the rotating device and AC power from the rotating device, and wind force applied to the rotating device Based on a plurality of input units to which a measured wind force as a measured value of the measured value and a measured rotational speed as a measured value of the rotational speed of the rotating device, the first table, and the measured wind force are used as targets of the rotating device Correction power for correcting the rotational speed of the rotating device based on a plurality of first calculation units for obtaining the rotational speed and target AC power from the rotating device, and the difference between the measured rotational speed and the target rotational speed Seeking A plurality of second calculation units, a plurality of power addition units for adding the target AC power and the correction power to obtain a target electrolytic power of the AC-DC conversion unit, and conversion by the AC-DC conversion unit A plurality of power control units for controlling the AC-DC conversion unit and the target electrolysis power from the plurality of power addition units, so that the direct current power corresponding to the target electrolysis power, A sum adding unit for obtaining a sum of target electrolysis power and DC power converted by the plurality of AC-DC conversion units are converted into DC power for charging the power storage unit, and the direct current charged in the power storage unit A DC-DC converter that converts electric power into direct-current power for hydrogen generation by electrolysis in the electrolytic hydrogen generator, and a storage amount input unit that receives a measured storage amount that is a measured value of the storage amount of the storage unit; , In the electrolytic hydrogen generator 3rd table showing the relationship between the electrolysis voltage for solution and the electrolysis power consumed by the electrolysis, the relationship between the power storage amount of the power storage unit, and the bias power amount during discharging and charging of the power storage unit A third calculation unit that obtains a reference electrolytic voltage as an electrolytic voltage for electrolysis in the electrolytic hydrogen generator, based on the fourth table representing the sum of the third table and the target electrolytic power, Based on the fourth table and the measured power storage amount, a fourth calculation unit for obtaining a bias power amount during discharging and charging of the power storage unit, and adding the voltage at the bias power amount and the reference electric field voltage A storage addition unit for obtaining a storage target voltage for discharging and charging the storage unit, and the DC power converted by the DC-DC converter so that the voltage at the DC power corresponds to the storage target voltage. -D A power storage amount control unit that controls the C conversion unit.

  In addition, the electrolytic hydrogen generation system of the present invention calculates the converted output power after conversion for generating the electrolytic hydrogen in the electrolytic hydrogen generation apparatus from the target voltage, using the direct current power from the power generation device that generates power using sunlight. The DC power converted by the first DC-DC converter and the DC power converted by the first DC-DC converter are converted into DC power for charging the power storage unit, and the charged DC power is generated in the electrolytic hydrogen generation. A second DC-DC converter for converting to direct current power for hydrogen generation by electrolysis in the apparatus, a storage amount input unit to which a measured storage amount as a measurement value of the storage amount of the storage unit is input, and the electrolysis A first table representing a relationship between an electrolysis voltage for electrolysis in the hydrogen generator and electrolysis power consumed by the electrolysis, and electrolysis for the electrolysis based on the first table and the DC power As voltage A first calculation unit for obtaining a quasi-electrolytic voltage; a second table representing a relationship between a storage amount of the power storage unit; a corrected electrolytic voltage for correcting the reference electrolytic voltage; the second table; Based on the measured power storage amount, a second calculation unit that calculates the corrected electrolysis voltage, and a power storage addition that calculates the power storage target voltage for discharging and charging the power storage unit by adding the reference electrolysis voltage and the correction electrolysis voltage And a storage amount control unit that controls the DC-DC conversion unit so that the voltage of the direct-current power converted by the second DC-DC conversion unit corresponds to the storage target voltage. It is characterized by doing.

  According to the present invention, both stabilization of power generation and high-efficiency power generation can be achieved.

It is a block diagram which shows the structure of the electrolytic hydrogen production | generation system of one Embodiment of this invention. It is a figure which shows the relationship between a wind speed, steady target rotation speed, and steady alternating current electric power. It is a figure which shows the relationship between the electrolysis voltage for electrolysis in a water electrolysis hydrogen generator, and the electrolysis electric power consumed by this electrolysis. It is a block diagram which shows the structure of the 3rd calculator shown in FIG. It is a block diagram which shows the structure of the electrolytic hydrogen production | generation system of Embodiment 2. FIG. It is a block diagram which shows the structure of the distribution controller shown in FIG. It is a figure which shows the relationship between the target alternating current power of the windmill from a 1st calculator, and the electrolysis power consumed by electrolysis with a water electrolysis hydrogen generator. It is a block diagram which shows the structure of the electrolytic hydrogen production | generation system of Embodiment 3. FIG. It is a block diagram which shows the structure of the DC link voltage controller shown in FIG. It is a block diagram which shows the structure of the electrolytic hydrogen production system of Embodiment 4. It is a block diagram which shows the structure of the electrical storage amount control part shown in FIG.

(Embodiment 1)
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an electrolytic hydrogen generation system according to an embodiment of the present invention.

  As shown in FIG. 1, this electrolytic hydrogen generation system 10 includes an anemometer 2 and a tachometer 3, and converts AC power from a windmill (rotary device) 1 that is rotated by wind power to generate power into an AC-DC converter. 4 is converting to DC power.

  The anemometer 2 is composed of a windmill-type anemometer that can measure the wind speed at the same time, for example. The rotation speed meter 3 is composed of, for example, a resolver. The measured wind speed and the measured rotational speed of the windmill 1 are continuously measured.

  In this embodiment, the measured values of the anemometer 2 and the revolution meter 3 are used for controlling the direct current power of the AC-DC converter 4 described later, and the direction control of the windmill 1 and the blade pitch angle control. It is also used for optimal control. Note that the direction control of the windmill 1 and the blade pitch angle control, etc., are conventional ones that have been conventionally known, and thus the description thereof is omitted here.

  The AC-DC converter 4 converts AC power from the windmill 1 into DC power for hydrogen generation by electrolysis in the water electrolysis hydrogen generator (electrolytic hydrogen generator) 5. The AC-DC converter 4 includes, for example, a converter and a DC capacitor, and controls DC power by controlling and adjusting the conduction time (ignition angle) of AC power. In addition, control of this DC power is performed by the target voltage input from the wind-electrolysis electrolysis control apparatus 11 mentioned later.

The water electrolysis hydrogen generator 5 includes an alkaline electrolyzer having an anode and a cathode using an alkaline electrolyte (not shown), and a hydrogen storage tank for storing the generated hydrogen under pressure.
The direct-current power generated by the AC-DC converter 4 is applied between the anode and the cathode of the alkaline electrolyzer, and electrolyzes water to obtain hydrogen. The alkaline electrolyzer is provided with a pure water replenishing device for supplementing the reduced water and a heat exchange unit for controlling the temperature of the alkaline electrolyte (not shown).

This electrolytic hydrogen generation system 10 includes a wind electrolysis cooperative control device 11.
As shown in FIG. 1, the wind electrolysis cooperative control device 11 includes a first computing unit 21, second and third computing units 22, 23 connected to the first computing unit 21, 2 and an adder 24 connected to the third arithmetic units 22 and 23.

The first computing unit 21 shown in FIG. 1 has functions of an input unit, a first table, and a first computing unit (not shown).
The input unit includes an anemometer 2 that measures the wind force applied to the windmill 1 (measured wind force), and a rotational speed meter 3 that measures the rotational speed of the windmill 1 that is rotated by the wind force (measured rotational speed). And is taken in.

FIG. 2 is a diagram illustrating the relationship between the wind speed, the steady target rotational speed, and the steady AC power.
As shown in FIG. 2, the first table generates electric power by being rotated by the steady target rotational speed (indicated by a dotted line in FIG. 2) indicating the target rotational speed in the steady state of the wind turbine 1 rotated by the wind power and by the wind power. The relationship with the steady target power (indicated by a solid line in FIG. 2) indicating the steady state target AC power from the windmill 1 is stored as a characteristic unique to the windmill 1.

  That is, the steady target rotational speed indicates the rotational speed of the target windmill 1 when the wind speed reaches a certain speed, and the steady target power is derived from the target windmill 1 when the wind speed reaches the certain speed. AC power is shown. When the wind speed reaches a certain level or more, the steady target power and the steady target rotation speed are set and controlled to a certain upper limit value using the optimum control such as the direction control of the windmill 1 and the blade pitch angle control described above.

  The first calculation unit obtains the target rotational speed of the windmill 1 and the target AC power from the windmill 1 based on the first table and the measured wind speed. The first calculation unit obtains the rotation speed and AC power corresponding to the wind speed measured by the anemometer 2 from the first table, and calculates the obtained rotation speed and AC power as the target rotation speed and the target AC power. To do.

Further, the first calculation unit calculates the target power and the target rotational speed from the steady target power and the steady target rotational speed obtained from the first table based on the following formulas (1) and (2). .
(Target power) = {1 / (1 + TS)}. (Stationary target power) (1)
(Target rotational speed) = {1 / (1 + TS)}. (Steady target rotational speed) (2)
Where 1 / (1 + TS): 1st order lag transfer function
T: Time constant determined by the completion moment of the windmill
S: Differential operator

  The transfer functions included in Equation (1) and Equation (2) indicate the function of a first-order lag filter. In response to a sudden change in the wind force (wind speed) applied to the windmill 1, the inertia and local wind changes of the windmill 1 are averaged, so that the electric power and windmill generated by the actual windmill 1 are averaged. Since the rotational speed of 1 changes with a delay, this delay is considered in this embodiment. Since the change in the wind speed corresponds to the change in the torque applied to the windmill 1, the delay is expressed by a primary delay from the dynamic characteristics of the windmill 1. Therefore, in this embodiment, a first-order delay is adopted as this delay.

  In other words, in this embodiment, the first computing unit 21 obtains the target power and the target rotational speed using the equations (1) and (2) based on the characteristics of wind power generation.

The second calculator 22 shown in FIG. 1 has functions of a second table and a second calculator (not shown).
FIG. 3 is a diagram showing the relationship between the electrolysis voltage for electrolysis in the water electrolysis hydrogen generator 5 and the electrolysis power consumed by this electrolysis.

  As shown in FIG. 3, the second table shows the relationship between the electrolysis voltage for electrolysis in the water electrolysis hydrogen generator 5 and the electrolysis power consumed by this electrolysis. It is memorized as a characteristic.

  In the water electrolysis hydrogen generator 5 of this embodiment, the power consumed by the device 5 (electrolytic power) due to the internal electrical resistance and the DC voltage (electrolytic voltage) between the anode and the cathode of the device 5 are as shown in FIG. And has a characteristic having a lower limit value and an upper limit value. That is, when the electrolysis voltage between the anode and the cathode increases, the current flowing therebetween increases and the electrolysis voltage rises. Moreover, since the electrolysis voltage between the anode and the cathode applicable to the device 5 has an upper limit and a lower limit, it is expressed as a characteristic curve therebetween.

The second calculation unit obtains a reference voltage (reference electrolysis voltage) as an electrolysis voltage for electrolysis in the water electrolysis hydrogen generator 5 based on the second table and the target power. When the target power is given from the first computing unit 21, the second computing unit obtains an electrolysis voltage corresponding to the target power from the second table, and outputs the obtained electrolysis voltage as a reference voltage. .
Thereby, the reference voltage required for the water electrolysis hydrogen generator 5 is obtained from the second calculator 22.

However, this reference voltage is calculated based on the characteristics of wind power generation stored in the first calculator 21 and the specification characteristics of the water electrolysis hydrogen generator 5 stored in the second calculator 22. These characteristics may differ slightly from those of actual equipment. Due to this deviation, the rotational speed of the windmill 1 is accelerated or decelerated. As a result, the rotational speed of the windmill 1 deviates from the optimal rotational speed during operation.
Therefore, in this embodiment, the function of the third computing unit 23 is used to prevent this shift.

FIG. 4 is a block diagram showing the configuration of the third computing unit 23 shown in FIG.
The third computing unit 23 shown in FIG. 1 has the function of a third computing unit configured from each part shown in FIG.
The third calculation unit obtains a correction voltage (corrected electrolytic voltage) for correcting the reference electrolytic voltage based on the difference between the measured rotational speed and the target rotational speed.

As shown in FIG. 4, the third computing unit 23 includes a subtractor 111, a low-pass filter 112, a PI controller 113, and a limiter 114.
The subtractor 111 calculates a target rotational speed input from the adder 24, a measured rotational speed measured by the rotational speed meter 3, and a difference (deviation) between the rotational speeds.
The low-pass filter 112 smoothes the difference between the input rotational speeds to remove high frequency components (noise).

The PI controller 113 outputs a correction voltage by performing feedback so that the difference in rotational speed for taking the offset becomes “0”. The proportional gain and integral time constant of the PI controller 113 are adjustment elements for stably controlling wind power generation, and are adjusted while detecting the stability of the operating state of the system.
The limiter 114 determines an upper limit value and a lower limit value of the correction voltage (correction electrolytic voltage) input from the PI controller 113, and limits the operation range of the correction voltage.

As shown in FIG. 1, the adder 24 functions as an electrolysis adder that adds the reference electrolysis voltage and the corrected electrolysis voltage to obtain a target electrolysis voltage for electrolysis in the water electrolysis hydrogen generator 5.
The adder 24 adds the reference voltage input from the second calculator 22 and the correction voltage input from the third calculator 23, and adds the DC target voltage (target electrolytic voltage) of the AC-DC converter 4. )

The AC-DC converter 4 has functions of an AC-DC converter and a voltage controller (not shown).
The AC-DC converter converts AC power from the windmill 1 into DC power for hydrogen generation by electrolysis in the water electrolysis hydrogen generator (electrolytic hydrogen generator) 5.

The voltage control unit controls the AC-DC conversion unit so that the voltage with the direct-current power converted by the AC-DC conversion unit corresponds to the target voltage.
That is, the voltage control unit sets the conduction time of the AC power so that the voltage of the DC power converted from the AC power by the AC-DC converter 4 becomes the target voltage output by the wind electrolysis cooperative control device 11. By controlling, DC power is converted and controlled.

  As described above, in this embodiment, the rotation capable of operating wind power generation most efficiently according to the wind speed by performing the direction control of the windmill 1 or the blade pitch angle control based on the measured values such as the measured wind speed and the measured rotation speed. Since it is used for controlling the direct-current power of the AC-DC converter 4 at the same time, it can generate hydrogen most efficiently. As a result, in this embodiment, both stabilization of power generation and high-efficiency power generation can be achieved.

In particular, in this embodiment, even if the wind speed changes abruptly or noise is mixed in the measured rotation speed, the filter function of the first calculator 21 and the low-pass filter 112 of the third calculator 23 The system can be operated stably by the function.
This embodiment is particularly effective for wind turbine power generation provided with a permanent magnet type rotor whose rotational speed is greatly changed by wind power.

  Moreover, in this embodiment, although the alkaline water electrolysis apparatus was demonstrated as the water electrolysis hydrogen production | generation apparatus 5, this invention is not restricted to this, A gas production system is used for the solid polymer water electrolysis apparatus using the structure of FIG. It is also possible to construct.

  In this embodiment, a program that causes a computer to function as the AC-DC converter, the first to second tables, the input unit, the first to third arithmetic units, the electrolytic addition unit, and the voltage control unit described above is provided. It is also possible to provide.

(Embodiment 2)
FIG. 5 is a block diagram illustrating a configuration of the electrolytic hydrogen generation system 10a according to the second embodiment. In the second embodiment, only the configuration different from that of the first embodiment will be described, and the same configuration as that of the first embodiment will be omitted for convenience of description.
In this embodiment, in addition to the configuration similar to that of the first embodiment, a DC-DC converter 12, a storage battery 13, and a distribution controller 14 are provided.

  The DC-DC converter 12 is connected to a DC line that electrically connects the AC-DC converter 4 and the water electrolysis hydrogen generator 5. The DC-DC converter 12 converts the DC power converted by the AC-DC converter 4 into DC power for charging the storage battery (power storage unit) 13, and the charged DC power is subjected to water electrolysis. It has a function of a DC-DC converter for converting into direct current power for hydrogen generation by electrolysis in the hydrogen generator 5.

  The DC-DC converter 12 controls charging / discharging of the storage battery 13 by controlling the direct-current voltage applied to the storage battery 13 by the same firing angle control as that of the first embodiment. That is, when charging the storage battery 13, the DC-DC converter 12 generates a charging DC voltage according to a predetermined function at the terminal of the storage battery 13 and executes a charging operation. On the other hand, when a discharge operation is necessary, a predetermined value lower than the charging DC voltage is generated at the storage battery 13 terminal to perform discharge. This voltage control is performed, for example, by the duty ratio of converter chopper control.

The storage battery 13 has functions of a power storage unit and a measurement unit (not shown).
The power storage unit is charged with a predetermined power storage amount by direct current power from the DC-DC converter 12.
The measuring unit measures the amount of power stored in the power storage unit.

The distribution controller 14 includes a storage amount input unit, third and fourth tables, fourth and fifth calculation units, and a storage addition unit (not shown).
The storage amount input unit receives a measured storage amount that is a measurement value of the storage amount of the storage battery 13.
The third table represents the relationship between the electrolysis voltage for electrolysis in the water electrolysis hydrogen generator 5 and the electrolysis power consumed by this electrolysis.

The fourth table represents the relationship between the amount of electricity stored in the storage battery 13 and the amount of bias power during discharging and charging of the storage battery 13.
The fourth calculation unit obtains the control electric energy for discharging and charging the power storage unit based on the relationship of the third table.
The fifth computing unit obtains the bias power amount during discharging and charging of the storage battery 13 based on the fourth table and the measured power storage amount.
The power storage adding unit adds the control power amount and the bias power amount to obtain a power storage target power for discharging and charging the power storage unit.

  FIG. 6 is a block diagram showing a configuration of the distribution controller 14 shown in FIG. FIG. 7 is a diagram showing the relationship between the target AC power of the wind turbine 1 from the first computing unit 21 and the electrolysis power consumed by electrolysis in the water electrolysis hydrogen generator 5.

As shown in FIG. 6, the distribution controller 14 includes a high-pass filter 31 and a storage amount control unit 32.
The high-pass filter 31 has the functions of the third table and the fourth calculation unit shown in FIG. 7. When the wind power target power is input from the first calculator 21, the high-pass filter 31 removes the low-frequency component. Yes.

  The third table shows the relationship between the target AC power of the windmill 1 from the first computing unit 21 and the electrolysis power consumed by electrolysis in the water electrolysis hydrogen generation device 5. It is memorized as a characteristic. In FIG. 7, the solid line is the target power of wind power (target AC power) from the first computing unit 21 with respect to time, and the dotted line is the power consumption (electrolytic power) consumed by electrolysis in the water electrolysis hydrogen generator 5, A one-dot chain line indicates an upper limit value of the electrolytic power, and a two-dot chain line indicates a lower limit value of the electrolytic power.

  The difference between the target power and the power consumption in the third table is the charge / discharge amount of the storage battery 13. That is, when the target power of wind power is larger than the power consumption, the battery 13 is charged. When the target power of wind power is smaller than the power consumption, the battery 13 is discharged.

The target power of this wind power changes more rapidly than the load fluctuation that the water electrolysis hydrogen generator 5 can tolerate.
Therefore, in this embodiment, a part of the output of the wind power generation is stored in the storage battery 13 so that the load change that the water electrolysis hydrogen generator 5 can follow is limited.

The relationship between the power storage control input (control power amount) and the target power at this time is expressed by the following equation (3).
(Storage control input) = [1− {1 / (1 + TS)}] · (Target power) (3)
Where T: time constant determined by the response time constant of the water electrolysis hydrogen generator
S: Differential operator The high-pass filter 31 obtains a storage control input (control power amount) based on the expression (3) and the target power.

Further, as shown in FIG. 6, the charged amount control unit 32 includes a charging bias table 121 and an adder 122.
The charge bias table 121 has functions of a storage amount input unit, a fourth table, and a fifth calculation unit. When the measured storage amount of the storage battery 13 is input from the storage amount input unit as shown in FIG. Based on the fourth table, the fifth arithmetic unit obtains the bias power amount at the time of discharging and charging the storage battery 13 (see FIG. 6).

  That is, the charging bias table 121 obtains and outputs the charging-side bias power amount when the measured power storage amount is smaller than the predetermined reference power amount while keeping the power storage amount of the storage battery 13 within an allowable range. When the power storage amount is larger than a predetermined reference power amount, the discharge-side bias power amount is obtained and output.

  The adder 122 has a function of a power storage adding unit, adds the bias power amount from the charging bias table 121 and the power storage control input from the high-pass filter 31, and outputs the power storage target power as a result of the addition. (See FIG. 6).

The DC-DC converter 12 has functions of a DC-DC converter and a storage amount controller (not shown).
The DC-DC converter converts the DC power converted by the AC-DC converter 4 into DC power for charging the storage battery 13, and converts the DC power charged in the storage battery 13 into the water electrolysis hydrogen generator 5. It is converted to DC power for hydrogen generation by electrolysis at

The power storage amount control unit controls the DC-DC conversion unit so that the DC power converted by the DC-DC conversion unit corresponds to the power storage target power.
The DC-DC converter 12 controls the DC-DC converter so that the DC power converted by the DC-DC converter corresponds to the storage target power from the distribution controller 14 shown in FIG. Thus, charging / discharging of the storage battery 13 is controlled.

  That is, the DC-DC converter 12 can charge the storage battery 13 by performing control to move the power consumption shown in FIG. 7 toward the lower limit value for the storage target power when the measured storage amount is small. To. In addition, the DC-DC converter 12 can control the power storage target power when the measured power storage amount is large to perform the control to move the power consumption shown in FIG. To.

  As described above, the water electrolysis hydrogen generator 5 is provided with a pure supply device, a heat exchange unit, and the like. It is difficult for these devices to mechanically cope with a sudden change in the load of the water electrolysis hydrogen generator 5 due to a sudden output fluctuation of wind power generation. Cause shortening.

  On the other hand, in this embodiment, as in the first embodiment, both stabilization of power generation and high-efficiency power generation can be achieved, and abrupt fluctuations in wind power can be achieved while keeping the storage amount of the storage battery within an allowable range. Can be absorbed by the storage battery 13, so that rapid fluctuations in the load of the water electrolysis hydrogen generator 5 can be prevented. As a result, it is possible to prevent the lifetime of the apparatus such as the pure supply apparatus and the temperature control apparatus from being deteriorated and to stably operate the electrolytic hydrogen generation system 10a.

  In this embodiment, the AC-DC conversion unit, the first to second tables, the input unit, the first to third arithmetic units, the electrolytic addition unit, and the voltage control unit shown in the first embodiment are also connected to the DC- It is also possible to provide a program that causes a computer to function as a DC conversion unit, a storage amount input unit, third to fourth tables, fourth to fifth calculation units, a storage addition unit, and a storage amount control unit.

(Embodiment 3)
FIG. 8 is a block diagram illustrating a configuration of an electrolytic hydrogen generation system 10b according to the third embodiment. In this embodiment, the configuration different from that of the second embodiment will be mainly described.
In this electrolytic hydrogen generation system 10b, a plurality of wind turbines 1a to 1c are provided with anemometers 2a to 2c and revolution meters 3a to 3c, respectively, and AC power from the wind turbines 1a to 1c is supplied to AC-DC converters 4a to 4c. Each is converted into DC power and output to the water electrolysis hydrogen generator 5.

  The AC-DC converters 4a to 4c are connected to the wind DC link output controllers 7a to 7c, respectively, and control the DC power by the target power output from the wind DC link output controllers 7a to 7c.

Since all the wind DC link output controllers 7a to 7c have the same configuration, the configuration of the wind DC link output controller 7a will be described as a representative.
As shown in FIG. 8, the wind DC link output controller 7a includes first and second computing units 21a and 21b and an adder 24a connected to the first and second computing units 21a and 21b. Prepare.

The first computing unit 21a has the same configuration as the first computing unit 21 of the first embodiment, and has functions of an input unit, a first table, and a first computing unit, and has a target rotational speed and a target AC power. Seeking.
The second computing unit 23a has a function of a second computing unit (not shown).
The 2nd calculating part is calculating | requiring the correction electric power for correction | amendment of the rotation speed of the windmill 1a based on the difference of measurement rotation speed and target rotation speed.

  The configuration of the second computing unit 23a is almost the same as that in FIG. Since the PI controller takes an offset of the wind turbine rotation speed, it outputs feedback of the corrected power so that the difference between the target value of the wind turbine rotation speed and the measured value becomes “0”. The limiter defines an upper limit value and a lower limit value of the correction power input from the PI controller, and limits the operation range of the correction power.

  The adder 24a has a function of a power adding unit, adds the target power from the first computing unit 21a and the corrected power from the second computing unit 23a, and adds the target power of the AC-DC converter 4a. (Target electrolysis power).

The AC-DC converter 4 has functions of an AC-DC converter and a power controller (not shown).
The AC-DC converter converts AC power from the windmill 1 a into DC power for hydrogen generation by electrolysis in the water electrolysis hydrogen generator 5.

The power control unit controls the AC-DC conversion unit so that the DC power converted by the AC-DC conversion unit corresponds to the target electrolytic power.
That is, the voltage control unit controls the conduction time of the AC power so that the DC power converted from the AC power by the AC-DC converter 4a becomes the target electrolytic power output by the wind DC link output controller 7a. By doing so, conversion control of DC power is performed.

  As shown in FIG. 8, in the electrolytic hydrogen generation system 10b, an adder 8 connected to each wind power DC link output controller 7a to 7c, and a DC connected between the adder 8 and the DC-DC converter 12. A link voltage controller 9 is provided.

Similarly, the target electrolytic power obtained by the wind power DC link output controllers 7 a to 7 c is output to the AC-DC converters 4 a to 4 c and also output to the adder 8.
The adder 8 has a function of a sum adder (not shown).
The sum adder adds the target electrolysis power from the adders 24a to 24c to obtain the total sum of the target electrolysis power.

FIG. 9 is a block diagram showing a configuration of the DC link voltage controller 9 shown in FIG.
As shown in FIG. 9, the DC link voltage controller 9 includes a low-pass filter 91, a calculator 92, a storage amount control unit 93, and an adder 94.

  The DC link voltage controller 9 shown in FIG. 8 includes each part shown in FIG. 9, and has functions of a storage amount input unit, third and fourth tables, and third and fourth arithmetic units. (Not shown).

The storage amount input unit receives a measured storage amount that is a measurement value of the storage amount of the storage battery 13.
As in FIG. 3, the third table shows the relationship between the electrolysis voltage for electrolysis in the water electrolysis hydrogen generator 5 and the electrolysis power consumed by this electrolysis, and the characteristics unique to the water electrolysis hydrogen generator 5. Remember as.

The third calculation unit obtains a reference electrolysis voltage as an electrolysis voltage for electrolysis in the water electrolysis hydrogen generator 5 based on the third table and the sum of the target electrolysis power.
The fourth table stores the relationship between the amount of electricity stored in the storage battery 13 and the bias power amount during discharging and charging of the storage battery 13 as a characteristic unique to the water electrolysis hydrogen generator 5.

The fourth calculation unit obtains the bias power amount during discharging and charging of the power storage unit based on the fourth table and the measured power storage amount.
The power storage addition unit adds the voltage at the bias power amount and the reference electric field voltage to obtain a power storage target voltage for discharging and charging the storage battery 13.

As shown in FIG. 9, the low-pass filter 91 and the computing unit 92 have the functions of the third table and the third computing unit described above.
The low-pass filter 91 smoothes the sum of the input target electrolytic power and removes high-frequency components (noise).
When the total sum of the target electrolysis power after smoothing is given, the arithmetic unit 92 obtains the electrolysis voltage corresponding to this from the third table, and outputs the obtained electrolysis voltage as the reference electrolysis voltage.

The power storage amount control unit 93 illustrated in FIG. 9 has the functions of the above-described power storage amount input unit, the fourth table, and the fourth calculation unit.
The storage amount control unit 93 has a charging bias table 121 similar to that in FIG. 6. When the measured storage amount of the storage battery 13 is input from the storage amount input unit, the fourth calculation unit is based on the fourth table. The amount of bias power at the time of discharging and charging the storage battery 13 is obtained (see FIG. 6).

  The adder 94 has the function of the power storage adding unit described above, and adds the voltage at the bias power amount from the power storage amount control unit 93 and the reference electrolytic voltage from the computing unit 92 to discharge the storage battery 13. And the storage target voltage for charging is obtained.

The DC-DC converter 12 has functions of a DC-DC converter and a storage amount controller (not shown).
The DC-DC converter converts the DC power converted by the AC-DC converter 4 into DC power for charging the storage battery 13, and converts the DC power charged in the storage battery 13 into the water electrolysis hydrogen generator 5. It is converted to DC power for hydrogen generation by electrolysis at

  The storage amount control unit controls the DC-DC converter 12 so that the DC power converted by the AC-DC converter 4 corresponds to the storage target voltage from the DC link voltage controller 9, thereby storing the storage battery. 13 charging / discharging is controlled.

  Thus, in this embodiment, in a large-scale wind farm in which a plurality of windmills 1a to 1c are linked, as in the first embodiment, both stabilization of power generation and high-efficiency power generation can be achieved, Hydrogen generation by the water electrolysis hydrogen generator 5 can be efficiently realized while maximizing the output of each of the wind turbines 1a to 1c.

  Moreover, in this embodiment, since the several windmills 1a-1c are cooperated and the output fluctuation | variation of a wind power generation is mutually smooth | blunted, the output fluctuation | variation of a sudden wind power generation is compensated with the storage battery 13 with relatively small electric storage amount. can do. As a result, rapid fluctuations in the load of the water electrolysis hydrogen generator 5 can be prevented.

Moreover, in this embodiment, since the frequency | count of power conversion is the minimum frequency, the conversion loss at the time of power conversion can be made the smallest.
In this embodiment, the target electrolytic power obtained by the wind DC link output controllers 7a to 7c is output to the AC-DC converters 4a to 4c. The target current of the AC-DC converters 4a to 4c may be output to each of the AC-DC converters 4a to 4c. In this case, the same effect as that of the third embodiment can be obtained.

  In this embodiment, the plurality of AC-DC conversion units, the plurality of first tables, the plurality of input units, the plurality of first to second arithmetic units, the plurality of power addition units, and the plurality of power controls are described above. Program that causes the computer to function as a storage unit, a sum addition unit, a DC-DC conversion unit, a storage amount input unit, third to fourth tables, third to fourth calculation units, a storage addition unit, and a storage amount control unit It is also possible to provide.

(Embodiment 4)
FIG. 10 is a block diagram illustrating a configuration of an electrolytic hydrogen generation system 10c according to the fourth embodiment.
As shown in FIG. 10, in this electrolytic hydrogen generation system 10 c, the DC power from the PV power generation device 6 that generates power using sunlight is converted into hydrogen by the DC-DC converter 18 by electrolysis in the water electrolysis hydrogen generator 5. For converting to DC power.

  The DC-DC converter 18 is provided with a PV maximum power control unit 17, and the PV maximum power control unit 17 maximizes the DC power from the PV power generation device 6 that is input to the DC-DC converter 18. So that it is controlled.

The DC-DC converter 18 has a function as a first DC-DC converter.
The first DC-DC converter calculates the converted output power after conversion for generating electrolytic hydrogen in the water electrolysis hydrogen generator 5 from the target voltage of the PV maximum power controller 17.

This electrolytic hydrogen generation system 10 c includes a PV electrolysis cooperative control device 15.
As shown in FIG. 10, the PV electrolysis cooperative control device 15 includes a low-pass filter 26, a calculator 22, a storage amount control unit 27, and an adder 24, as in FIG. 9.

  The PV electrolysis cooperative control device 15 has functions of a storage amount input unit, first and second tables, first and second calculation units, and a storage addition unit (not shown).

The storage amount input unit receives a measured storage amount that is a measurement value of the storage amount of the storage battery 13.
The first table shows the relationship between the electrolysis voltage for electrolysis in the water electrolysis hydrogen generator 5 and the electrolysis power consumed by electrolysis in the water electrolysis hydrogen generator 5. It is memorized as a characteristic.

The first calculation unit obtains a reference electrolysis voltage as an electrolysis voltage for electrolysis in the water electrolysis hydrogen generator 5 based on the first table and the DC power.
The second table stores the relationship between the charged amount of the storage battery 13 and the corrected electrolysis voltage for correcting the reference electrolysis voltage as a characteristic unique to the water electrolysis hydrogen generator 5.

The second calculation unit obtains a corrected electrolysis voltage based on the second table and the measured power storage amount.
The storage addition unit adds the reference electrolytic voltage and the corrected electrolytic voltage to obtain a storage target voltage for discharging and charging the storage battery 13.

As shown in FIG. 10, the low-pass filter 26 and the calculator 22 have the functions of the first table and the first calculator described above.
The low-pass filter 26 smoothes input PV power (DC power) and removes high-frequency components (noise).
When the smoothed PV power is given, the calculator 22 obtains an electrolysis voltage corresponding to the PV power from the first table, and outputs the obtained electrolysis voltage as a reference electrolysis voltage.

The power storage amount control unit 27 illustrated in FIG. 10 has the functions of the above-described power storage amount input unit, the second table, and the second calculation unit.
FIG. 11 is a block diagram showing a configuration of the power storage amount control unit 27 shown in FIG.
As shown in FIG. 11, the storage amount control unit 27 has a table 127 that represents the relationship of the voltage (corrected electrolysis voltage) corresponding to the storage amount, and the measured storage amount of the storage battery 13 is input from the storage amount input unit. And based on the table 127, the 2nd calculating part calculates | requires the correction | amendment electrolysis voltage at the time of discharge of the storage battery 13, and charge.

  The adder 24 has the function of the power storage adding unit described above, and adds the reference electrolysis voltage from the calculator 22 and the corrected electrolysis voltage from the power storage amount control unit 27 to discharge and charge the storage battery 13. A storage target voltage is required.

The DC-DC converter 12 has functions of a second DC-DC converter and a storage amount controller (not shown).
The second DC-DC converter converts the direct current power converted by the DC-DC converter 18 into direct current power for charging the storage battery 13 and also converts the direct current power charged in the storage battery 13 into water electrolysis hydrogen. It is converted into DC power for hydrogen generation by electrolysis in the generator 5.

The power storage amount control unit controls the DC-DC converter 12 so that the voltage of the direct-current power converted by the DC-DC conversion unit corresponds to the power storage target voltage.
That is, in the DC-DC converter 12, the storage amount control unit is configured so that the DC power converted by the DC-DC conversion unit corresponds to the storage target power from the PV electrolysis cooperative control device 15 shown in FIG. 10. The charge / discharge of the storage battery 13 is controlled by controlling the DC-DC converter.

  As described above, in this embodiment, the reference electrolytic voltage calculated by the calculator 22 and the corrected electrolytic voltage calculated by the storage amount control unit 27 are added by the adder 24, and the DC-DC converter 12 is added. Therefore, it is possible to realize generation of water electrolysis hydrogen suitable for PV power generation, and to compensate sudden fluctuations in PV power by charging / discharging the storage battery 13. As a result, rapid fluctuations in the load of the water electrolysis hydrogen generator 5 can be prevented.

Further, in this embodiment, the storage battery 13 can be kept within an allowable storage amount by obtaining the corrected electrolysis voltage for the measured storage amount by the storage amount control unit 27.
Moreover, in this embodiment, since DC-AC conversion of electric power is not included, it becomes possible to reduce the conversion loss at the time of power conversion.

  Moreover, in this embodiment, the 1st-2nd DC-DC conversion part mentioned above, the electrical storage amount input part, the 1st-2nd table, the 1st-2nd calculating part, the electrical storage addition part, and electrical storage amount control It is also possible to provide a program that causes a computer to function as the unit.

  In addition, this invention is not limited only to the said embodiment, You may change a component in the range which does not deviate from the summary in an implementation stage. In addition, various inventions can be configured by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

  DESCRIPTION OF SYMBOLS 1, 1a-1c ... Windmill, 2, 2a-2c ... Anemometer, 3, 3a-3c ... Revolution meter, 4, 4a-4c ... AC-DC converter, 5 ... Water electrolysis hydrogen generator, 7a-7c DESCRIPTION OF SYMBOLS ... Wind DC link output controller, 8 ... Adder, 9 ... DC link voltage controller, 10, 10a-10c ... Electrolytic hydrogen generation system, 11 ... Wind electrolysis cooperative control device, 12, 18 ... DC-DC converter, DESCRIPTION OF SYMBOLS 13 ... Storage battery, 14 ... Distribution controller, 21-23, 21a, 21b ... Arithmetic unit, 24, 24a-24c ... Adder, 26 ... Low pass filter, 27, 93 ... Power storage amount control part, 31 ... High pass filter, 32 DESCRIPTION OF SYMBOLS ... Storage amount control part, 91 ... Low pass filter, 92 ... Operation unit, 94 ... Adder, 111 ... Subtractor, 112 ... Low pass filter, 113 ... PI controller, 114 ... Limiter, 121 ... Charge bias table, 12 ... adder, 127 ... table.

Claims (11)

An AC-DC converter that converts AC power from a rotating device that is rotated by wind power to generate power into DC power for hydrogen generation by electrolysis in an electrolytic hydrogen generator;
A first table representing a relationship between wind force applied to the rotating device and the rotational speed of the rotating device and AC power from the rotating device;
A second table representing a relationship between an electrolysis voltage for electrolysis in the electrolysis hydrogen generator and electrolysis power consumed by the electrolysis;
A measurement wind force that is a measurement value of wind force applied to the rotating device, and a measurement rotation number that is a measurement value of the rotation number of the rotating device, and an input unit,
Based on the first table and the measured wind force, a first calculation unit for obtaining a target rotational speed of the rotating device and a target AC power from the rotating device;
A second calculation unit for obtaining a reference electrolytic voltage as an electrolytic voltage for the electrolysis based on the second table and the target AC power;
A third calculation unit for obtaining a corrected electrolytic voltage for correcting the reference electrolytic voltage based on a difference between the measured rotational speed and the target rotational speed;
An electrolytic addition unit that adds the reference electrolytic voltage and the corrected electrolytic voltage to obtain a target electrolytic voltage for electrolysis in the electrolytic hydrogen generator;
A voltage control unit that controls the AC-DC conversion unit so that a voltage of the direct-current power converted by the AC-DC conversion unit corresponds to the target electrolytic voltage;
An electrolytic hydrogen generation system comprising: The first table stores a relationship between a steady wind force applied to the rotating device, a steady rotation speed of the rotating device, and a steady AC power from the rotating device,
The input unit continuously inputs the measured wind force and the measured rotational speed,
The first calculation unit includes:
First means for continuously obtaining the steady rotation speed of the rotating device and the steady AC power from the rotating device based on the first table and the measured wind force continuously input;
A second means for obtaining the target rotational speed as a first-order lag calculation from the continuously obtained steady rotational speed;
The electrolytic hydrogen generation system according to claim 1, further comprising: second means for obtaining the target AC power as a first-order lag calculation from the steady AC power obtained continuously. The direct current power converted by the AC-DC conversion unit is converted into direct current power for charging the power storage unit, and the charged direct current power is converted into direct current for hydrogen generation by electrolysis in the electrolytic hydrogen generator. A DC-DC converter for converting into electric power;
A storage amount input unit to which a measured storage amount as a measurement value of the storage amount of the storage unit is input;
A third table representing a relationship between target AC power of the rotating device from the first arithmetic unit and electrolytic power consumed by electrolysis in the electrolytic hydrogen generator;
A fourth table representing a relationship between a power storage amount of the power storage unit and a bias power amount during discharging and charging of the power storage unit;
A fourth calculation unit for obtaining a control electric energy for discharging and charging the power storage unit based on the relationship of the third table;
A fifth computing unit for obtaining a bias power amount at the time of discharging and charging the power storage unit based on the fourth table and the measured power storage amount;
A power storage addition unit that adds the control power amount and the bias power amount to obtain a power storage target power for discharging and charging the power storage unit;
A power storage amount control unit that controls the DC-DC conversion unit so that direct current power converted by the DC-DC conversion unit corresponds to the storage target power;
The electrolytic hydrogen generation system according to claim 1, further comprising: A plurality of AC-DC converters for converting AC power from a plurality of rotating devices that are rotated by wind power to generate DC power for hydrogen generation by electrolysis in an electrolytic hydrogen generator;
A plurality of first tables representing a relationship between wind force applied to the rotating device and the rotational speed of the rotating device and AC power from the rotating device;
A plurality of input units to which a measurement wind force that is a measurement value of wind force applied to the rotating device and a measurement rotation number that is a measurement value of the rotation number of the rotating device are input,
Based on the first table and the measured wind force, a plurality of first calculation units for obtaining a target rotational speed of the rotating device and a target AC power from the rotating device;
A plurality of second calculation units for obtaining correction power for correcting the rotation speed of the rotating device based on the difference between the measured rotation speed and the target rotation speed;
A plurality of power addition units for adding the target AC power and the correction power to obtain a target electrolytic power of the AC-DC conversion unit;
A plurality of power control units for controlling the AC-DC conversion unit so that the direct-current power converted by the AC-DC conversion unit corresponds to the target electrolytic power;
A sum addition unit for adding the target electrolysis power from the plurality of power addition units to obtain a sum of the target electrolysis power;
The direct-current power converted by the plurality of AC-DC conversion units is converted into direct-current power for charging the power storage unit, and the direct-current power charged in the power storage unit is converted into hydrogen by electrolysis in the electrolytic hydrogen generator. A DC-DC converter for converting into direct current power for generation;
A storage amount input unit to which a measured storage amount as a measurement value of the storage amount of the storage unit is input;
A third table representing a relationship between an electrolysis voltage for electrolysis in the electrolysis hydrogen generator and electrolysis power consumed by the electrolysis;
A fourth table representing a relationship between a power storage amount of the power storage unit and a bias power amount during discharging and charging of the power storage unit;
A third calculation unit for obtaining a reference electrolysis voltage as an electrolysis voltage for electrolysis in the electrolysis hydrogen generator based on the third table and the sum of the target electrolysis power;
A fourth calculation unit for obtaining a bias power amount during discharging and charging of the power storage unit based on the fourth table and the measured power storage amount;
A power storage adding unit for adding a voltage at the bias power amount and the reference electric field voltage to obtain a power storage target voltage for discharging and charging the power storage unit;
A power storage amount control unit that controls the DC-DC conversion unit so that a voltage of direct-current power converted by the DC-DC conversion unit corresponds to the power storage target voltage;
An electrolytic hydrogen generation system comprising: A first DC-DC converter that calculates converted output power after conversion for generating electrolytic hydrogen in the electrolytic hydrogen generator from a target voltage, using direct current power from a power generation device that generates power using sunlight;
The direct-current power converted by the first DC-DC converter is converted into direct-current power for charging the power storage unit, and the charged direct-current power is generated by electrolysis in the electrolytic hydrogen generator. A second DC-DC converter for converting to direct current power for
A storage amount input unit to which a measured storage amount as a measurement value of the storage amount of the storage unit is input;
A first table representing a relationship between an electrolysis voltage for electrolysis in the electrolysis hydrogen generator and electrolysis power consumed by the electrolysis;
A first calculation unit for obtaining a reference electrolysis voltage as an electrolysis voltage for the electrolysis based on the first table and the DC power;
A second table representing a relationship between a storage amount of the power storage unit and a corrected electrolytic voltage for correcting the reference electrolytic voltage;
A second computing unit for obtaining the corrected electrolysis voltage based on the second table and the measured storage amount;
A power storage addition unit that adds the reference electrolysis voltage and the corrected electrolysis voltage to obtain a power storage target voltage for discharging and charging the power storage unit;
A power storage amount control unit that controls the DC-DC conversion unit so that a voltage of direct-current power converted by the second DC-DC conversion unit corresponds to the power storage target voltage;
An electrolytic hydrogen generation system comprising: An AC-DC converter that converts AC power from a rotating device that is rotated by wind power to generate power into DC power for hydrogen generation by electrolysis in an electrolytic hydrogen generator;
A step of causing the input unit to input a measurement wind force as a measurement value of wind force applied to the rotating device and a measurement rotation number as a measurement value of the rotation number of the rotation device;
The first computing unit is based on the first table representing the relationship between the wind force applied to the rotating device and the rotational speed of the rotating device and the AC power from the rotating device, and the measured wind force. Obtaining a target rotational speed of and a target AC power from the rotating device;
The second arithmetic unit is configured to perform the electrolysis based on the second table representing the relationship between the electrolysis voltage for electrolysis in the electrolysis hydrogen generator and the electrolysis power consumed by the electrolysis and the target AC power. Obtaining a reference electrolysis voltage as an electrolysis voltage for
A third computing unit obtaining a corrected electrolytic voltage for correcting the reference electrolytic voltage based on a difference between the measured rotational speed and the target rotational speed;
An electrolytic addition unit adding the reference electrolytic voltage and the corrected electrolytic voltage to obtain a target electrolytic voltage for electrolysis in the electrolytic hydrogen generator;
A step of controlling the AC-DC converter such that a voltage control unit corresponds to the target electrolysis voltage with a voltage of DC power converted by the AC-DC converter;
An electrolytic hydrogen generation method comprising: A step in which a plurality of input units convert AC power from a plurality of rotating devices that generate power by rotating a plurality of AC-DC conversion units by wind power into DC power for hydrogen generation by electrolysis in an electrolytic hydrogen generator. When,
A step in which a measurement wind force that is a measurement value of wind force applied to the rotating device and a measurement rotation number that is a measurement value of the rotation number of the rotating device are input by a plurality of input units;
The plurality of first calculation units are based on the plurality of first tables representing the relationship between the wind force applied to the rotating device and the rotational speed of the rotating device and the AC power from the rotating device and the measured wind force. Obtaining a target rotational speed of the rotating device and a target AC power from the rotating device;
A plurality of second arithmetic units, based on a difference between the measured rotational speed and the target rotational speed, obtaining correction power for correcting the rotational speed of the rotating device;
A plurality of steps in which a power addition unit adds the target AC power and the correction power to obtain a target electrolytic power of the AC-DC conversion unit;
A plurality of power control units controlling the AC-DC conversion unit such that direct-current power converted by the AC-DC conversion unit corresponds to the target electrolytic power;
A sum adding unit adding the target electrolytic power from the plurality of power adding units to obtain a sum of the target electrolytic power;
The DC-DC converter converts the DC power converted by the plurality of AC-DC converters into DC power for charging the power storage unit, and converts the DC power charged in the power storage unit to the electrolytic hydrogen Converting to direct current power for hydrogen generation by electrolysis in the generator;
A step of inputting a measured power storage amount, which is a measured value of the power storage amount of the power storage unit;
Based on the third table representing the relationship between the electrolysis voltage for electrolysis in the electrolysis hydrogen generator and the electrolysis power consumed by the electrolysis and the total sum of the target electrolysis power, Obtaining a reference electrolysis voltage as an electrolysis voltage for electrolysis in an electrolysis hydrogen generator;
A fourth computing unit based on the fourth table representing the relationship between the amount of electricity stored in the electricity storage unit and the amount of bias power during discharging and charging of the electricity storage unit and the measured amount of electricity stored; A step of obtaining a bias electric energy during charging;
A power storage adding unit adding the voltage at the bias power and the reference electric field voltage to obtain a power storage target voltage for discharging and charging the power storage unit; and
A storage amount control unit controlling the DC-DC conversion unit so that a voltage of direct-current power converted by the DC-DC conversion unit corresponds to the storage target voltage;
An electrolytic hydrogen generation method comprising: A first DC-DC converter that calculates direct-current power from a power generation device that generates power from sunlight, and converted output power after conversion for electrolytic hydrogen generation in an electrolytic hydrogen generator from a target voltage;
The second DC-DC converter converts the DC power converted by the first DC-DC converter into DC power for charging the power storage unit, and converts the charged DC power into the electrolysis Converting to DC power for hydrogen generation by electrolysis in a hydrogen generator;
A step of inputting a measured power storage amount, which is a measured value of the power storage amount of the power storage unit;
Based on the first table representing the relationship between the electrolysis voltage for electrolysis in the electrolysis hydrogen generator and the electrolysis power consumed by the electrolysis and the DC power, the first arithmetic unit performs the electrolysis Obtaining a reference electrolysis voltage as an electrolysis voltage of
The second calculation unit obtains the corrected electrolysis voltage based on the second table representing the relationship between the power storage amount of the power storage unit and the correction electrolysis voltage for correcting the reference electrolysis voltage and the measured power storage amount. Steps,
A power storage adding unit adding the reference electrolytic voltage and the corrected electrolytic voltage to obtain a power storage target voltage for discharging and charging the power storage unit; and
A storage amount control unit controlling the DC-DC conversion unit so that a voltage of direct-current power converted by the second DC-DC conversion unit corresponds to the storage target voltage;
An electrolytic hydrogen generation method comprising: An AC-DC converter that converts AC power from a rotating device that is rotated by wind power to generate power into DC power for hydrogen generation by electrolysis in an electrolytic hydrogen generator;
A first table representing a relationship between wind force applied to the rotating device and the rotational speed of the rotating device and AC power from the rotating device;
A second table representing a relationship between an electrolysis voltage for electrolysis in the electrolysis hydrogen generator and electrolysis power consumed by the electrolysis;
A measurement wind force that is a measurement value of wind force applied to the rotating device, and a measurement rotation number that is a measurement value of the rotation number of the rotating device, and an input unit,
Based on the first table and the measured wind force, a first calculation unit for obtaining a target rotational speed of the rotating device and a target AC power from the rotating device;
A second calculation unit for obtaining a reference electrolytic voltage as an electrolytic voltage for the electrolysis based on the second table and the target AC power;
A third calculation unit for obtaining a corrected electrolytic voltage for correcting the reference electrolytic voltage based on a difference between the measured rotational speed and the target rotational speed;
An electrolytic addition unit that adds the reference electrolytic voltage and the corrected electrolytic voltage to obtain a target electrolytic voltage for electrolysis in the electrolytic hydrogen generator;
A voltage control unit that controls the AC-DC conversion unit so that a voltage of the direct-current power converted by the AC-DC conversion unit corresponds to the target electrolytic voltage;
As a program that allows the computer to function. A plurality of AC-DC converters for converting AC power from a plurality of rotating devices that are rotated by wind power to generate DC power for hydrogen generation by electrolysis in an electrolytic hydrogen generator;
A plurality of first tables representing a relationship between wind force applied to the rotating device and the rotational speed of the rotating device and AC power from the rotating device;
A plurality of input units to which a measurement wind force that is a measurement value of wind force applied to the rotating device and a measurement rotation number that is a measurement value of the rotation number of the rotating device are input,
Based on the first table and the measured wind force, a plurality of first calculation units for obtaining a target rotational speed of the rotating device and a target AC power from the rotating device;
A plurality of second calculation units for obtaining correction power for correcting the rotation speed of the rotating device based on the difference between the measured rotation speed and the target rotation speed;
A plurality of power addition units for adding the target AC power and the correction power to obtain a target electrolytic power of the AC-DC conversion unit;
A plurality of power control units for controlling the AC-DC conversion unit so that the direct-current power converted by the AC-DC conversion unit corresponds to the target electrolytic power;
A sum addition unit for adding the target electrolysis power from the plurality of power addition units to obtain a sum of the target electrolysis power;
The direct-current power converted by the plurality of AC-DC conversion units is converted into direct-current power for charging the power storage unit, and the direct-current power charged in the power storage unit is converted into hydrogen by electrolysis in the electrolytic hydrogen generator. A DC-DC converter for converting into direct current power for generation;
A storage amount input unit to which a measured storage amount as a measurement value of the storage amount of the storage unit is input;
A third table representing a relationship between an electrolysis voltage for electrolysis in the electrolysis hydrogen generator and electrolysis power consumed by the electrolysis;
A fourth table representing a relationship between a power storage amount of the power storage unit and a bias power amount during discharging and charging of the power storage unit;
A third calculation unit for obtaining a reference electrolysis voltage as an electrolysis voltage for electrolysis in the electrolysis hydrogen generator based on the third table and the sum of the target electrolysis power;
A fourth calculation unit for obtaining a bias power amount during discharging and charging of the power storage unit based on the fourth table and the measured power storage amount;
A power storage adding unit for adding a voltage at the bias power amount and the reference electric field voltage to obtain a power storage target voltage for discharging and charging the power storage unit;
A storage amount control unit that controls the DC-DC conversion unit so that a voltage of the direct-current power converted by the DC-DC conversion unit corresponds to the storage target voltage;
As a program that allows the computer to function. A first DC-DC converter that calculates converted output power after conversion for generating electrolytic hydrogen in the electrolytic hydrogen generator from a target voltage, using direct current power from a power generation device that generates power using sunlight;
The direct-current power converted by the first DC-DC converter is converted into direct-current power for charging the power storage unit, and the charged direct-current power is generated by electrolysis in the electrolytic hydrogen generator. A second DC-DC converter for converting to direct current power for
A storage amount input unit to which a measured storage amount as a measurement value of the storage amount of the storage unit is input;
A first table representing a relationship between an electrolysis voltage for electrolysis in the electrolysis hydrogen generator and electrolysis power consumed by the electrolysis;
A first calculation unit for obtaining a reference electrolysis voltage as an electrolysis voltage for the electrolysis based on the first table and the DC power;
A second table representing a relationship between a storage amount of the power storage unit and a corrected electrolytic voltage for correcting the reference electrolytic voltage;
A second computing unit for obtaining the corrected electrolysis voltage based on the second table and the measured storage amount;
A power storage addition unit that adds the reference electrolysis voltage and the corrected electrolysis voltage to obtain a power storage target voltage for discharging and charging the power storage unit;
A storage amount control unit that controls the DC-DC conversion unit so that a voltage of the direct-current power converted by the second DC-DC conversion unit corresponds to the storage target voltage;
As a program that allows the computer to function.

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